Science Vocabulary Quiz - 5 Dec 13
This is an FCAT Science vocabulary quiz. When finished, there will be about 105 vocabulary words in the database. When you take the weekly quiz, 10 to 15 questions will be selected at random.
New questions will be added about every two weeks until the database is complete. There are now 66 questions in the quiz database.
NEW - I added new questions to the BEGINNING of this quiz. The questions are in order and this is practice mode. You can see if you were correct or incorrect after each Read morequestion.
- 1.
The color of the powder of a mineral left behind when it's rubbed across a white streak plate.
- A.
Streak
- B.
Green
- C.
Luster
- D.
Hardness
- E.
Cleavage
Correct Answer
A. StreakExplanation
The correct answer is "streak." Streak refers to the color of the powder left behind when a mineral is rubbed across a white streak plate. This characteristic can be helpful in identifying minerals, as it may differ from the color of the mineral itself.Rate this question:
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- 2.
A property of a mineral that describes how it appears when it reflects light.
- A.
Streak
- B.
Reflectability
- C.
Luster
- D.
Hardness
- E.
Cleavage
Correct Answer
C. LusterExplanation
Luster refers to the way a mineral appears when it reflects light. It describes the quality and intensity of the light reflected from the mineral's surface. Luster can be categorized as metallic or non-metallic, with metallic luster appearing shiny like metal and non-metallic luster having various appearances like glassy, pearly, or dull. The luster of a mineral can provide valuable information about its composition and physical properties.Rate this question:
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- 3.
A property of a mineral that describes how easily it can be scratched.
- A.
Streak
- B.
Reflectability
- C.
Luster
- D.
Hardness
- E.
Cleavage
Correct Answer
D. HardnessExplanation
HARDNESS is the word used to describe how easy it is to scratch a mineral. Moh's scale of hardness is used to describe a mineral's hardness. Diamonds have a hardness of 10. Talc (the stuff in baby powder) has a hardness of 1.Rate this question:
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- 4.
A property used to describe how a mineral breaks apart along smooth surfaces.
- A.
Streak
- B.
Reflectability
- C.
Luster
- D.
Hardness
- E.
Cleavage
Correct Answer
E. CleavageExplanation
CLEAVAGE is the property used to describe how a mineral breaks apart along smooth surfaces. A mineral with NO cleavage will break apart into rough, uneven pieces. The mineral in this image (gypsum) has good cleavage. When broken apart it will break cleanly to create nice, smooth surfaces.Rate this question:
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- 5.
A type of rock that forms from cooled magma or lava.
- A.
Igneous
- B.
Sedimentary
- C.
Metamorphic
- D.
Mineral
Correct Answer
A. IgneousExplanation
There are 3 main types of rocks. Rocks are made of minerals.
IGNEOUS rock forms from cooled magma or lava.
SEDIMENTARY rock forms from layers of sediment at the bottom of lakes, oceans, or rivers. Over time, these layers are kind of glued together to form sedimentary rock. Fossils can often be found in sedimentary rocks.
METAMORPHIC rocks are either igneous rocks or sedimentary rocks that are squeezed so hard by tremendous pressure (like under the weight of a mountain) that their structure changes. Metamorphic rocks are also heated by this pressure, but not enough to turn into liquid rock (magma).Rate this question:
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- 6.
A type of rock that formed from layers of sediment.
- A.
Igneous
- B.
Sedimentary
- C.
Metamorphic
- D.
Mineral
Correct Answer
B. SedimentaryExplanation
There are 3 main types of rocks. Rocks are made of minerals.
IGNEOUS rock forms from cooled magma or lava.
SEDIMENTARY rock forms from layers of sediment at the bottom of lakes, oceans, or rivers. Over time, these layers are kind of glued together to form sedimentary rock. Fossils can often be found in sedimentary rocks.
METAMORPHIC rocks are either igneous rocks or sedimentary rocks that are squeezed so hard by tremendous pressure (like under the weight of a mountain) that their structure changes. Metamorphic rocks are also heated by this pressure, but not enough to turn into liquid rock (magma).Rate this question:
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- 7.
A type of rock that is formed over time from existing rock due to extreme pressure and or heat.
- A.
Igneous
- B.
Sedimentary
- C.
Metamorphic
- D.
Mineral
Correct Answer
C. MetamorpHicExplanation
There are 3 main types of rocks. Rocks are made of minerals.
IGNEOUS rock forms from cooled magma or lava.
SEDIMENTARY rock forms from layers of sediment at the bottom of lakes, oceans, or rivers. Over time, these layers are kind of glued together to form sedimentary rock. Fossils can often be found in sedimentary rocks.
METAMORPHIC rocks are either igneous rocks or sedimentary rocks that are squeezed so hard by tremendous pressure (like under the weight of a mountain) that their structure changes. Metamorphic rocks are also heated by this pressure, but not enough to turn into liquid rock (magma).Rate this question:
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- 8.
A naturally occurring inorganic solid with a distinctive chemical composition and crystalline structure.
- A.
Igneous
- B.
Sedimentary
- C.
Metamorphic
- D.
Mineral
Correct Answer
D. MineralExplanation
MINERALS are inorganic solids with distinctive chemical composition and crystalline structure.
The key word in the previous definition was inorganic. Inorganic means not living or not made from living things. Minerals are made from things that are NOT living. If you break apart a rock and look at it carefully, you will see that it is made from many different types of minerals.
There are 3 main types of rocks. Rocks are made of minerals.
IGNEOUS rock forms from cooled magma or lava.
SEDIMENTARY rock forms from layers of sediment at the bottom of lakes, oceans, or rivers. Over time, these layers are kind of glued together to form sedimentary rock. Fossils can often be found in sedimentary rocks.
METAMORPHIC rocks are either igneous rocks or sedimentary rocks that are squeezed so hard by tremendous pressure (like under the weight of a mountain) that their structure changes. Metamorphic rocks are also heated by this pressure, but not enough to turn into liquid rock (magma).Rate this question:
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- 9.
The loose top layer of Earth's surface made of weathered rock, minerals, and organic matter.
- A.
Soil
- B.
Clay
- C.
Minerals
- D.
Sediment
Correct Answer
A. SoilExplanation
SOIL is the loose top layer of Earth's surface made of weathered rock, minerals, and organic matter.
Some people call dirt. Basically, soil is a mixture of small pieces of rock, minerals and organic matter. Organic matter is stuff that used to be alive, but that has broken down. If you throw all the vegetables into a big pile in your back yard, after a few months, the stuff at the bottom of the pile starts turning back into soil.Rate this question:
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- 10.
Which of the following is NOT a correct observation of the object below?
- A.
It is gold colored
- B.
It reflects light
- C.
It has a rough surface
- D.
It is gold
Correct Answer
D. It is goldExplanation
You use your senses to make observations about things. You can clearly observe that it is gold colored, reflects light, and has a rough surface.
You can NOT tell from looking at this object that it is MADE out of gold. That would be an inference. If you've ever seen a gold nugget, you can make a pretty good inference that it is indeed made of gold, but you can't prove it just by looking at it.Rate this question:
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- 11.
Which of the following is an inference about the picture below?
- A.
The plane is landing
- B.
The sky is blue
- C.
The man closest to the beach is wearing a red shirt
- D.
There are 3 large buildings in the background
Correct Answer
A. The plane is landingExplanation
The man wearing the red shirt, the color of the sky, and the number of large buildings in the background are observation. You can't tell for sure, but you can infer that the plane is landing because it's wheels are down, you can see a fence that they usually have at the end of the runway and the people do not seem to be afraid, which they would be if the plane was crashing.Rate this question:
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- 12.
Which of the following is an inference about the picture below?
- A.
The blue letters on the plane spell Air France
- B.
The plane has more than 5 wheels
- C.
The water is green/blue in color
- D.
There are 3 hotels in the background
Correct Answer
D. There are 3 hotels in the backgroundExplanation
There are blue letters that spell Air France, the plane does have more than 5 wheels, and the water is green/blue. Those are all observations. These people look like they are on vacation at the beach. Calling the buildings in the background hotels is a logical inference, but not a certainty.Rate this question:
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- 13.
Quantitative observations are numbers that describe something. Qualitative observations are made using your senses, such as the color of an object, it's texture, whether it's sweet tasting our sour, and the sound it makes when it hits the ground.
- A.
True
- B.
False
Correct Answer
A. TrueExplanation
Qualitative is about senses, Quantitative is about numbers.Rate this question:
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- 14.
Qualitative observations are numbers that describe something. Quantitative observations are made using your senses, such as the color of an object, it's texture, whether it's sweet tasting our sour, and the sound it makes when it hits the ground.
- A.
True
- B.
False
Correct Answer
B. FalseExplanation
This statement is backwards. Qualitative observations are made using your senses, quantitative observations involve numbers.Rate this question:
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- 15.
Sharing information in a report, giving a speech, writing a book, making a movie or TV show are ways that a Scientist uses which science process skill?
- A.
Communication
- B.
Inference
- C.
Observation
- D.
Measurement
Correct Answer
A. CommunicationExplanation
Sharing information in a report, giving a speech, writing a book, making a movie or TV show are ways that a Scientist COMMUNICATES the information he/she has learned.Rate this question:
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- 16.
Which tools might a scientist use to measure in an experiment?
- A.
Graduated cylinder
- B.
Thermometer
- C.
Meter tape
- D.
Triple-beam balance
- E.
All of the these tools might be used to measure in an experiment
Correct Answer
E. All of the these tools might be used to measure in an experimentExplanation
A scientist might use a graduated cylinder to measure liquid volume, a thermometer to measure temperature, a meter tape to measure length or distance, and a triple-beam balance to measure mass. All of these tools are commonly used in scientific experiments for accurate measurements.Rate this question:
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- 17.
What's another word for a prediction in a science experiment
- A.
Hypothesis
- B.
Inference
- C.
Communication
- D.
Variable
Correct Answer
A. HypothesisExplanation
A hypothesis or prediction is an educated guess about what might happen.Rate this question:
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- 18.
To organize into groups based on similar properties.
- A.
Classify
- B.
Measure
- C.
Analyze
- D.
Infer
Correct Answer
A. ClassifyExplanation
Classifying is one of the most important Science process skills. Classify means to organize or sort into groups based on similar properties.Rate this question:
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- 19.
Mr. Aulow gave Karen 6 rocks. Within 5 minutes, Karen had sorted the rocks into the groups shown below. What science process skill is Karen using?
- A.
Classificiation
- B.
Measurement
- C.
Inference
- D.
Observation
Correct Answer
A. ClassificiationExplanation
Classification means to sort into groups with similar properties. Karen classified the rocks as being igneous, sedimentary, or metamorphic.Rate this question:
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- 20.
In science experiment #1, we were trying to find out how salt affects the growth of plants. What is the manipulated variable in this experiment?
- A.
The amount of salt
- B.
The amount of light
- C.
The height of the plants
- D.
The mass of the plants
Correct Answer
A. The amount of saltExplanation
The manipulated variable in an experiment is the variable that you are testing. It's the variable that you change on purpose. In this experiment, we were testing different amounts of salt.Rate this question:
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- 21.
In science experiment #1, we were trying to find out how salt affects the growth of plants. What is the responding variable in this experiment?
- A.
The amount of salt
- B.
The amount of light
- C.
The height of the plants
- D.
The mass of the plants
Correct Answer
C. The height of the plantsExplanation
The responding variable in an experiment is the variable that changes because of the manipulated variable. It's usually the variable that you measure when making quantitative observations during an experiment. In this experiment, we measured the height of the plant every day, so height is the responding variable.Rate this question:
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- 22.
Process in which substances are changed into different substances with different properties.
- A.
Chemical change
- B.
Physical change
- C.
Magic
- D.
Mixture
Correct Answer
A. Chemical changeExplanation
When ice melts, that's a physical change. Nothing NEW is created. Frozen water and liquid water are still water.
In a CHEMICAL CHANGE, something new is created that has properties different from the original substance. Common chemical changes are: rust, combining baking soda and vinegar, cooking food, and burning a match.
When you mix baking soda and vinegar, you see bubbles, hear fizzing because carbon dioxide is released. If you feel the container, you will notice that it got cold. The remaining "stuff" is no longer baking soda or vinegar.
Rust happens when oxygen and iron combine to form iron oxide. Obviously, rust is no longer iron or oxygen, but something new that is reddish in color. Iron is not red and oxygen has no color.
If you slice an apple in half, that's a physical change, but if you eat the apple or let it rot, it's no longer going to be an apple.Rate this question:
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- 23.
The amount of matter a substance or object has.
- A.
Mass
- B.
Volume
- C.
Density
- D.
Temperature
Correct Answer
A. MassExplanation
MASS is the amount of matter a substance of object has. At sea level on Earth, an objects mass is the same as objects weight. In outer space, a bowling ball would still have mass but it would be weightless.
Scientist often use a triple beam balance to measure mass. The unit of measure for mass is the
GRAM.
The moon has much less gravity than the Earth because it is so much smaller. If you went to the moon, your mass would be the same, but you would weigh 1/6 as much as you do on the Earth. If you have a mass of 60 kilograms on Earth, your mass on the moon would be 60 kilograms, but your wight would be 10 kilograms.Rate this question:
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- 24.
Anything that takes up space and has mass.
- A.
Mass
- B.
Matter
- C.
Stuff
- D.
Energy
Correct Answer
B. MatterExplanation
MATTER is anything that takes up space and has mass. Anything you can feel or touch is matter.
Some students think that air has no mass. That's NOT true. You can feel air when wind hits you and if you fill up a balloon with air, it's heavier than an empty balloon.
What's not matter? Energy (heat, light, sound, etc.) and ideas are not matter.Rate this question:
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- 25.
A type of change that involves the physical properties of a substance. Nothing new is created.
- A.
Chemical change
- B.
Physical change
- C.
Magic
- D.
Mixture
Correct Answer
B. pHysical changeExplanation
When ice melts, that's a PHYSICAL CHANGE. . Nothing NEW is created. Frozen water and liquid water are still water. If you rip a paper in half, it's still paper. If you slice an apple into pieces, the pieces are still apple.
In a CHEMICAL CHANGE, something new is created that has properties different from the original substance. Common chemical changes are: rust, combining baking soda and vinegar, cooking food, and burning a match.
When you mix baking soda and vinegar, you see bubbles, hear fizzing because carbon dioxide is released. If you feel the container, you will notice that it got cold. The remaining "stuff" is no longer baking soda or vinegar.
Rust happens when oxygen and iron combine to form iron oxide. Obviously, rust is no longer iron or oxygen, but something new that is reddish in color. Iron is not red and oxygen has no color.Rate this question:
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- 26.
The amount of space an object or substance occupies.
- A.
Mass
- B.
Volume
- C.
Density
- D.
Temperature
Correct Answer
B. VolumeExplanation
VOLUME is the amount of space something takes up. In general, the volume of liquids and solids doesn't change very much. Gasses, however, can be squeezed to have less volume. If you release the air inside a balloon, the volume of the gas in the balloon increases.
In Science, the volume of objects can be measured using a graduated cylinder or beaker.
In Science, the unit of measure for volume is the LITER.
Volume and mass aren't necessarily related. In this image, the golf ball and ping pong ball have almost the same amount of volume. Actually, the ping pong ball is a little larger. But, however, the golf ball has more mass.Rate this question:
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- 27.
A measure of how hot or cold and object or substance is.
- A.
Mass
- B.
Volume
- C.
Density
- D.
Temperature
Correct Answer
D. TemperatureExplanation
TEMPERATURE is a measure of how hot or cold an object or substance is.
Scientists (an almost everyone in the world except the U.S.) use the Celsius scale to measure temperature. In the Celsius scale, water freezes at zero degrees and boils at 100 degrees.
"Normal" temperatures in Miami are between 20 and 30 degrees. 30 degrees would be hot, room temperature is about 20 degrees Celsius, and a cool day would be in the mid teens.Rate this question:
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- 28.
Properties of an object or substance that can be observed or measured without changing the object or substance.
- A.
Physical properties
- B.
Chemical properties
Correct Answer
A. pHysical propertiesExplanation
PHYSICAL PROPERTIES that can be observed or measured without changing the original object or substance.
Physical properties include color, smell, mass, volume, does it conduct electricity? is it attracted to a magnet, will it dissolve in water? etc.
The melting point and boiling point of water or metals is a physical property because your are not actually changing the substance.Rate this question:
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- 29.
Properties of an object or substance that can be only be observed or measure by changing the object into something else.
- A.
Physical properties
- B.
Chemical properties
Correct Answer
B. Chemical propertiesExplanation
CHEMICAL PROPERTIES can only be observed by changing the object. For example: Will wood burn? The only way to find out is by lighting on fire. When you see the flame, you know that it is burned, but the wood is no longer wood.
The color of the flame when objects are burned is different. The only way to find out is by burning them.
In the image above you can see that calcium is orange when burned and zinc is yellow. Solid calcium is NOT orange. The only way to see what color it is when burned is by burning it. But, when you burned it, it's not calcium any more.
Does iron rust? The only way to find out is by letting it rust.Rate this question:
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- 30.
Who's correct?
- A.
Vanessa
- B.
Nicolas
- C.
Neither is correct, air is anti-matter
- D.
They are both correct
Correct Answer
A. VanessaExplanation
Matter is anything that takes up space and has mass. When you blow air into a balloon, you prove that air takes up space. Believe it or not, given 2 identical balloons, one empty the other full of air, the full balloon will weigh more - it has more mass.
When you feel wind, that's air hitting you. Just because it's invisible, doesn't mean that air isn't matter.
BTW, Nicolas knew the answer to this question.Rate this question:
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- 31.
What is happening at stage 1?
- A.
Ice is melting because temperature is greater than 0 degrees Celsius
- B.
The ice is freezing because temperature is greater than 0 degrees Celsius
- C.
Condensation
- D.
Evaporation
Correct Answer
A. Ice is melting because temperature is greater than 0 degrees CelsiusExplanation
Ice melts at temperatures greater than 0 degrees Celsius. When the ice was taken out of the fridge, it started to melt immediately.Rate this question:
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- 32.
What is happening at stage 2?
- A.
The water is boiling
- B.
The water is melting
- C.
The water is evaporating
- D.
The water vapor is condensing
Correct Answer
A. The water is boilingExplanation
The stage 2 arrow is pointing at the water in the flask. Since bubbles are being formed, we can infer that the water is boiling.Rate this question:
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- 33.
What is happening at stage 3?
- A.
The water is boiling
- B.
The water is melting
- C.
The water is evaporating
- D.
The water vapor is condensing
Correct Answer
C. The water is evaporatingExplanation
In stage 3, the liquid water that was boiled turns into water vapor. The process of changing from a liquid to a gas is EVAPORATION.
One thing to note in this diagram is that water vapor is transparent. You can't see water vapor. I think they should a "cloud" in this image because showing "nothing" is hard.Rate this question:
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- 34.
What is happening at stage 4?
- A.
The water is boiling
- B.
The water is melting
- C.
The water is evaporating
- D.
The water vapor is condensing
Correct Answer
D. The water vapor is condensingExplanation
In stage 4, the water vapor that was in the large container at the top begins to cool as it passes through
the smaller tube. As it cools, the water vapor CONDENSES and turns back into droplets of liquid water, that collect in the beaker underneath the tube.
One thing to note in this diagram is that water vapor is transparent. You can't see water vapor. I think they should a "cloud" in this image because showing "nothing" is hard.Rate this question:
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- 35.
What is happening at stage 5?
- A.
The water is boiling
- B.
The water is melting
- C.
The water is freezing into ice
- D.
The water vapor is condensing
Correct Answer
C. The water is freezing into iceExplanation
In stage 5, the liquid water is placed back in the freezer where the temperature is below 0 degrees Celsius. Water FREEZES at temperatures below 0 degrees Celcius.
One thing to note in this diagram is that water vapor is transparent. You can't see water vapor. I think they show a "cloud" in this image because showing "nothing" is hard to see.Rate this question:
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- 36.
In general, what must be added to a solid to change it into a liquid?
- A.
Condensation
- B.
Cooling
- C.
Heat
- D.
Precipitation
Correct Answer
C. HeatExplanation
Changing solid to a liquid usually requires that the solid be heated.Rate this question:
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- 37.
In general, what must be added to a liquid to change it into a gas?
- A.
Heat
- B.
Cooling
- C.
Condensation
- D.
Precipitation
Correct Answer
A. HeatExplanation
Changing liquid to a gas usually requires that the liquid be heated. Evaporation can also be caused by wind blowing across the surface of the liquid.Rate this question:
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- 38.
In general, what must be added to a gas to turn it into a liquid or to turn a liquid into a solid?
- A.
Heat
- B.
Cooling
- C.
Condensation
- D.
Precipitation
Correct Answer
B. CoolingExplanation
Changing from gas to a liquid or a liquid to a solid requires cooling. As warm air rises in the sky, the air cools, the water vapor cools and condenses on the surface of dust particles to form water droplets that bunch together to form clouds.Rate this question:
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- 39.
Which of the following is NOT true about solids, liquids, and gasses?
- A.
The volume of solids and liquids remain relatively constant
- B.
The volume of a gas can change depending on the container
- C.
Gasses expand to take the shape of their container
- D.
Liquids take the shape of their container
- E.
The shape of solids is set
- F.
To turn a solid into a liquid, you should cool it.
Correct Answer
F. To turn a solid into a liquid, you should cool it.Explanation
In general, to turn a solid into a liquid, you need to add heat.Rate this question:
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- 40.
Mercury is metal that is liquid at normal room temperature. Why?
- A.
The freezing point of mercury is lower than normal room temperature.
- B.
The freezing point of mercury is higher than normal room temperature.
- C.
The boiling point of mercury is lower than normal room temperature.
- D.
Magic
Correct Answer
A. The freezing point of mercury is lower than normal room temperature.Explanation
When a substance freezes, it turns into a solid. Since mercury is a liquid at room temperature, it makes sense that in order to freeze it into a solid, you would have too cool it.Rate this question:
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- 41.
Molecules are made of atoms.
- A.
True
- B.
False
Correct Answer
A. TrueExplanation
This is true. Molecules are made out of atoms. If they are molecules of different kinds of elements, they are called a compound.Rate this question:
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- 42.
Atoms are made of molecules.
- A.
True
- B.
False
Correct Answer
B. FalseExplanation
This is false. Molecules are made out of atoms. Atoms are made out of particles called protons, neutrons, and electrons.Rate this question:
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- 43.
What are the THREE types of sub-atomic particles that we learned about in class?
- A.
Neutrinos
- B.
Positrons
- C.
Electrons
- D.
Protons
- E.
Neutrons
- F.
Molecules
Correct Answer(s)
C. Electrons
D. Protons
E. NeutronsExplanation
The 3 main types of sub-atomic particle are protons, neutrons, and electrons. Protons have a positive charge, electrons have a negative charge, and neutrons have a neutral charge.Rate this question:
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- 44.
You can see an atom of gold with this microscope.
- A.
True
- B.
False
Correct Answer
B. FalseExplanation
False. Only recently, using EXTREMELY expensive electron scanning computer-aided microscopes have we been able to see molecules and atoms. Ordinary microscopes like this won't even come close to letting you view an individual atom.Rate this question:
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- 45.
Which of the following is NOT true about matter.
- A.
Atoms are made of protons, neutrons, and electrons
- B.
Molecules made of more than one type of atom are called compounds
- C.
A molecule with only one type of atom is called a compound
- D.
Molecules are made out of atoms
- E.
If you chop an atom of gold in half, you will create two atoms of gold
- F.
All matter is made of atoms
Correct Answer
E. If you chop an atom of gold in half, you will create two atoms of goldExplanation
By definition, atoms are the smallest unit of an element. They are indivisible. If you chop a gold atom apart, the atom releases tremendous energy and cease to be gold.Rate this question:
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- 46.
A body at rest will remain at rest, a body in motion will remain in motion with the same velocity, until a force causes it to stop, turn, slow down, or speed up.
- A.
Inertia
- B.
Speed
- C.
Direction
- D.
Acceleration
Correct Answer
A. InertiaExplanation
Inertia is the correct answer because it refers to the tendency of an object to resist changes in its state of motion. According to Newton's first law of motion, an object at rest will stay at rest and an object in motion will continue moving at a constant velocity unless acted upon by an external force. This concept of inertia explains why objects require a force to change their state of motion, whether it is to stop, turn, slow down, or speed up.Rate this question:
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- 47.
- A.
F
- B.
G
- C.
H
- D.
I
Correct Answer
B. GExplanation
Graph G shows a ball that starts out fast and then slows to a stop.Rate this question:
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- 48.
CJ was in outer space. He launched each of the rockets shown below with equal force. Which of the rockets would travel the fastest?
- A.
F
- B.
G
- C.
H
- D.
I
Correct Answer
B. GExplanation
Given the same force, the rocket with the least mass will travel the fastest. The larger rockets have more inertia and will take more force to get to the same speed.Rate this question:
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- 49.
Ashton kicks a ball across a field. What force works to slow the ball down?
- A.
Friction
- B.
Gravity
- C.
Light energy
- D.
A magnetic force
Correct Answer
A. FrictionExplanation
The friction between the ball and the grass is the primary force working to slow the ball down.Rate this question:
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- 50.
- A.
Friction
- B.
Gravity
- C.
Electrical force
- D.
Magnetism
Correct Answer
B. GravityExplanation
The falling water moves the wheel. The water is moving because of the force of GRAVITY.Rate this question:
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.png "Which of the following is an inference about the picture below?")
.JPG "In science experiment #1, we were trying to find out how salt affects the growth of plants. What is the
manipulated variable in this experiment?")
.jpg "The amount of space an object or substance occupies.")
.jpg "Properties of an object or substance that can be observed or measured without changing the object or substance.")
.jpg)
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