Could You Pass This Challenging Physics Test?

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  • 1/17 Questions

    If an object has a density of 14g/cc and it is put in a container of water, what would happen to it? (hint: Water has a density of 1g/cc)

    • It would sink
    • It would float
    • It would neither sink nor float.
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About This Quiz

This quiz has been made for Physics students and learners. There is a set of 17 questions which you have to answer in a short time, just to check your knowledge and efficiency. It covers topics related to pressure, fluids, and density. So, let's try out the quiz. All the best!

Could You Pass This Challenging Physics Test? - Quiz

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  • 2. 

    What force makes you feel lighter in the water?

    • Centripital force

    • Force of gravity

    • Buoyant force

    • Force pump

    Correct Answer
    A. Buoyant force
    Explanation
    The buoyant force is the force that makes you feel lighter in the water. When an object is submerged in a fluid, such as water, it displaces a certain amount of fluid. According to Archimedes' principle, the buoyant force acting on the object is equal to the weight of the fluid displaced. This upward force counteracts the force of gravity, making you feel lighter in the water. Therefore, the correct answer is buoyant force.

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  • 3. 

    What is the formula for calculating pressure?

    • Force divided by area

    • Pressure divided by force

    • Mass divided by volume

    Correct Answer
    A. Force divided by area
    Explanation
    The formula for calculating pressure is force divided by area. Pressure is defined as the force applied per unit area, so dividing the force by the area gives us the pressure. This formula is derived from the basic definition of pressure and is widely used in physics and engineering to calculate pressure in various situations.

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  • 4. 

    If an object has a mass of 50g and a volume of 10 cubic centimetres, what would be its density?

    • 5 g/cc

    • 50 g/cc

    • 10 g/cc

    • 2 g/cc

    Correct Answer
    A. 5 g/cc
    Explanation
    The density of an object is calculated by dividing its mass by its volume. In this case, the object has a mass of 50g and a volume of 10 cubic centimeters. By dividing 50g by 10 cubic centimeters, we get a density of 5 g/cc.

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  • 5. 

    Which of the following is not an example of a fluid?

    • Hydrogen

    • Oxygen

    • Coffee

    • Water

    • Clay

    Correct Answer
    A. Clay
    Explanation
    Clay is not an example of a fluid because fluids are substances that can flow and take the shape of their containers. Clay, on the other hand, is a solid material that is not capable of flowing or taking the shape of its container like liquids do. Therefore, clay does not exhibit the properties of a fluid.

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  • 6. 

    In order for an object to sink in a container of water, its density must be:

    • Greater than 1 gram per cubic centimeter

    • Less than 1 gram per cubic centimeter

    • Equal to 1 gram per cubic centimeter

    Correct Answer
    A. Greater than 1 gram per cubic centimeter
    Explanation
    An object will sink in water if its density is greater than 1 gram per cubic centimeter. This is because the density of water is 1 gram per cubic centimeter, so an object with a higher density will be heavier than the water it displaces and will sink. Conversely, if the object's density is less than 1 gram per cubic centimeter, it will be lighter than the water and will float. If the object's density is exactly 1 gram per cubic centimeter, it will be neutrally buoyant and will neither sink nor float.

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  • 7. 

    An increase in the depth of water creates what kind of change in water pressure?

    • Decrease

    • Increase

    • No change

    Correct Answer
    A. Increase
    Explanation
    When the depth of water increases, it exerts more weight or force on the water below it. This increased weight results in an increase in the pressure exerted by the water. Therefore, an increase in the depth of water creates an increase in water pressure.

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  • 8. 

    If an object has a density of .04 g/cc and it is put in a container of water, what would happen to it? (hint: Water has a density of 1 g/cc)

    • It would sink

    • It would float

    • It would neither sink nor float

    Correct Answer
    A. It would float
    Explanation
    The object would float because its density is lower than that of water. When an object is placed in a fluid, it will float if its density is less than that of the fluid. In this case, the object's density is 0.04 g/cc, which is much lower than the density of water (1 g/cc). Therefore, the object would experience an upward buoyant force that is greater than its own weight, causing it to float.

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  • 9. 

    What is the formula for density?

    • Force divided by area

    • Pressure divided by force

    • Mass divided by volume

    • Volume divided by force

    Correct Answer
    A. Mass divided by volume
    Explanation
    The formula for density is mass divided by volume. Density is a measure of how much mass is contained within a given volume. By dividing the mass of an object by its volume, we can determine how tightly packed the particles are within the object.

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  • 10. 

    One pascal is equal to:

    • 1 Newton of force per square mile

    • 1 Newton of force per square meter

    • 1 Newton of force per square second

    • 1 Newton of force per square inch

    Correct Answer
    A. 1 Newton of force per square meter
    Explanation
    The correct answer is 1 Newton of force per square meter. Pascal is the SI unit of pressure, defined as one newton of force per square meter. It is named after the French mathematician, physicist, and philosopher Blaise Pascal, who made important contributions to the study of fluids and pressure. This unit is commonly used in scientific and engineering contexts to measure and quantify pressure.

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  • 11. 

    If an object has a mass of 4 grams and a volume of 8 cubic centimetres, what would be its density?

    • 5 g/cc

    • .5 g/cc

    • 4 g/cc

    • 8 g/cc

    Correct Answer
    A. .5 g/cc
    Explanation
    The density of an object is calculated by dividing its mass by its volume. In this case, the mass of the object is 4 grams and the volume is 8 cubic centimeters. Therefore, the density would be 4 grams divided by 8 cubic centimeters, which equals 0.5 grams per cubic centimeter.

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  • 12. 

    Which of the following is not an example of a hydraulic system?

    • Brakes of a car

    • Ladder of a fire truck

    • Car Jack

    • Computer

    Correct Answer
    A. Computer
    Explanation
    A hydraulic system uses fluid to transmit power and operate machinery. The brakes of a car, ladder of a fire truck, and car jack are all examples of hydraulic systems as they use fluid to generate force and perform their intended functions. However, a computer does not operate on hydraulic principles. It relies on electronic components and does not utilize fluid power to function. Therefore, a computer is not an example of a hydraulic system.

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  • 13. 

    Which of the following is the Archimedes principle?

    • When force is applied to a confined fluid, an increase in pressure is transmitted equally to all parts of the fluid.

    • The buoyant force of an object is equal to the weight of the fluid displaced by an object.

    • Water pressure increases as depth increases.

    • Air pressure decreases as elevation increases.

    Correct Answer
    A. The buoyant force of an object is equal to the weight of the fluid displaced by an object.
    Explanation
    The Archimedes principle states that the buoyant force exerted on an object immersed in a fluid is equal to the weight of the fluid displaced by the object. This means that when an object is placed in a fluid, it will experience an upward force that is equal to the weight of the fluid that is pushed aside or displaced by the object. This principle helps explain why objects float or sink in fluids, and it is the basis for understanding the concept of buoyancy.

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  • 14. 

    The amount of matter in an object is called:

    • Volume

    • Area

    • Mass

    • Length

    Correct Answer
    A. Mass
    Explanation
    Mass refers to the amount of matter in an object. It is a fundamental property of matter and is measured in units such as kilograms or pounds. Volume, on the other hand, refers to the amount of space occupied by an object. Area is the measure of the size of a surface, while length refers to the measurement of the distance between two points. Therefore, out of the given options, mass is the correct term for the amount of matter in an object.

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  • 15. 

    As you climb higher up a mountain, air pressure would:

    • Increase

    • Decrease

    • Stay the same

    Correct Answer
    A. Decrease
    Explanation
    As you climb higher up a mountain, the air pressure decreases. This is because the higher you go, the less air there is above you, resulting in fewer air molecules exerting pressure on you. The decrease in air pressure can also lead to a decrease in oxygen levels, making it harder to breathe at higher altitudes.

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  • 16. 

    The amount of space an object takes up is called:

    • Volume

    • Area

    • Mass

    • Length

    Correct Answer
    A. Volume
    Explanation
    Volume is the correct answer because it refers to the amount of space that an object occupies. It is a measure of the three-dimensional space that an object occupies and is commonly measured in cubic units such as cubic meters or cubic centimeters. Area refers to the amount of space occupied by a two-dimensional object, mass refers to the amount of matter in an object, and length refers to the measurement of the size or distance of an object in one dimension.

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  • 17. 

    In order for an object to float in a container of water its density must be:

    • Greater than 1 gram per cubic centimeter

    • Less than 1 gram per cubic centimeter

    • Equal to 1 gram per cubic centimeter

    Correct Answer
    A. Less than 1 gram per cubic centimeter
    Explanation
    An object will float in water if its density is less than 1 gram per cubic centimeter. This is because the density of water is 1 gram per cubic centimeter, so if the object is less dense than water, it will displace an amount of water that weighs more than the object itself, causing it to float.

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  • Current Version
  • Dec 26, 2023
    Quiz Edited by
    ProProfs Editorial Team
  • Nov 15, 2007
    Quiz Created by
    Mscarb72
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