1.
1.5 km = _______ m
Correct Answer
D. 1500
Explanation
The correct answer is 1500 because when converting from kilometers to meters, you need to multiply the value by 1000. In this case, 1.5 kilometers multiplied by 1000 equals 1500 meters.
2.
6 m = ___________cm
Correct Answer
B. 600
Explanation
The correct answer is 600 because there are 100 centimeters in 1 meter. Therefore, to convert 6 meters to centimeters, we multiply 6 by 100, resulting in 600 centimeters.
3.
333 cm = 3.33
Correct Answer
C. M
Explanation
The given conversion is from centimeters to meters. Since 1 meter is equal to 100 centimeters, 333 centimeters can be written as 3.33 meters.
4.
1 m = ___________
Correct Answer
A. 100 cm
Explanation
The conversion factor between meters and centimeters is 100. Therefore, 1 meter is equal to 100 centimeters.
5.
The metric system is based upon what number?
Correct Answer
C. 10
Explanation
The metric system is based upon the number 10. This means that it uses a decimal system, where each unit is a multiple or fraction of 10. This makes conversions between different units of measurement much easier, as you simply need to move the decimal point. For example, there are 100 centimeters in a meter, and 1000 meters in a kilometer. The use of base 10 makes the metric system more intuitive and consistent compared to other systems that use different conversion factors.
6.
"Kilo" means...
Correct Answer
A. 1000x
Explanation
"Kilo" is a prefix derived from the Greek word "chilioi," meaning "thousand." In the metric system, it is used to represent a factor of 1000. Therefore, when "kilo" is used as a prefix, it multiplies the value by 1000.
7.
500kL = ____________hL
Correct Answer
5000, 5,000, 5 thousand, 5 x 1000, 5000L
Explanation
The given question is asking for the equivalent value of 500kL in hL. The answer options provided, 5000, 5,000, 5 thousand, 5 x 1000, and 5000L, all represent the same value of 5000 liters. Therefore, the correct answer is 5000, 5,000, 5 thousand, 5 x 1000, 5000L.
8.
500km = ____________hm
Correct Answer
5000, 5,000, 5 thousand, 5 x 1000, 5000m
Explanation
The correct answer is 5000, 5,000, 5 thousand, 5 x 1000, 5000m. This is because 1 kilometer (km) is equal to 1000 meters (m). Therefore, to convert km to hm (hectometers), we need to multiply the given value by 10. In this case, 500 km multiplied by 10 equals 5000 hm.
9.
________kL = 3400L
Correct Answer
3.4, 3.40, 3.4kL
Explanation
The given equation states that 1 kiloliter (kL) is equal to 3400 liters. Therefore, the numbers 3.4, 3.40, and 3.4kL all represent the same volume of liquid, which is 3400 liters. The first two numbers are in liter units, while the last one is in kiloliter units.
10.
The smartest boy was born on 12/12/12. His brain size was estimated to be 200kg, his brain size in grams is
Correct Answer
200,000, 200000, 200,000grams, 200000grams, 200000g, 200,000g
Explanation
The answer is 200,000, 200000, 200,000grams, 200000grams, 200000g, 200,000g because all of these options represent the brain size of 200kg in grams.
11.
145 mm = ________m
Correct Answer
D. 0.145
Explanation
To convert millimeters to meters, we need to divide the given value by 1000 since there are 1000 millimeters in a meter. Therefore, 145 mm is equal to 0.145 meters.
12.
What is the metric unit for measuring mass or weight?
Correct Answer
C. Kilogram
Explanation
The metric unit for measuring mass or weight is the kilogram. This unit is commonly used in scientific and everyday contexts to quantify the amount of matter in an object or the force exerted by gravity on an object. The kilogram is a fundamental unit of the International System of Units (SI) and is defined as the mass of the International Prototype of the Kilogram, a platinum-iridium cylinder kept at the International Bureau of Weights and Measures in France.
13.
"Centi" means...
Correct Answer
C. 1/100
Explanation
The prefix "centi-" in the metric system represents a factor of 1/100. Therefore, "centi" means 1/100.
14.
What is the metric unit for measuring length?
Correct Answer
B. Meter
Explanation
The metric unit for measuring length is the meter. The meter is the standard unit of length in the International System of Units (SI) and is used to measure distances. It is commonly used in scientific and everyday applications worldwide.
15.
5mL = _________L
Correct Answer
0.005, 0.005L, .005
Explanation
The given question asks for the equivalent value of 5mL in liters. The correct answer is 0.005L, 0.005, or .005. This is because 1 liter is equal to 1000 milliliters. Therefore, to convert milliliters to liters, we divide the value by 1000. In this case, dividing 5mL by 1000 gives us 0.005L, 0.005, or .005.
16.
1,500 cg = _____________150 kg
Correct Answer
B. False
Explanation
The given statement is false. 1,500 cg is equal to 15 kg, not 150 kg. This is because there are 100 centigrams (cg) in 1 gram (g), and 1,000 grams (g) in 1 kilogram (kg). Therefore, to convert 1,500 cg to kg, we divide by 100 to get 15 kg.
17.
15 cm = 1.5 mm
Correct Answer
B. False
Explanation
The statement "15 cm = 1.5 mm" is false. This is because 15 cm is equal to 150 mm, not 1.5 mm. Therefore, the correct answer is False.
18.
6250 mL= _____________L
Correct Answer
6.25, 6.250, 6.25L
Explanation
The given question asks to convert 6250 mL to liters. The correct answer options are 6.25, 6.250, and 6.25L. These options are correct because they represent the conversion of 6250 mL to liters. The decimal point is placed after the first digit, which indicates that the conversion is accurate to the hundredth place. The "L" at the end of one option indicates that it represents liters.
19.
What is the metric unit for measuring volume?
Correct Answer
A. Liter
Explanation
The metric unit for measuring volume is a liter. A liter is a unit of measurement used to quantify the amount of space occupied by a liquid or a solid. It is commonly used in scientific and everyday applications to measure the capacity of containers or the volume of substances. The other options, pound, kilogram, and ounce, are units of measurement for weight, not volume.
20.
What is the metric unit for measuring length?
Correct Answer
A. Meter
Explanation
The metric unit for measuring length is the meter. This is a standard unit of measurement in the International System of Units (SI) and is used to measure distances or lengths. It is commonly used in scientific and everyday applications, such as measuring the length of a room or the height of a person. The other options, pound, kilogram, and gram, are units of measurement for weight or mass, not length.