Q. What is the standard unit of length in the SI system?
-
A.
Centimeter
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B.
Meter
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C.
Kilometer
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D.
Millimeter
Solution
The standard unit of length in the SI system is the meter (m).
Correct Answer:
B
— Meter
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Q. What is the unit of momentum in the SI system?
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A.
Kilogram meter per second
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B.
Newton
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C.
Joule
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D.
Kilogram
Solution
The unit of momentum in the SI system is kilogram meter per second (kg·m/s), which is derived from the product of mass and velocity.
Correct Answer:
A
— Kilogram meter per second
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Q. What is the unit of momentum?
-
A.
Kilogram meter per second
-
B.
Newton
-
C.
Joule
-
D.
Pascal
Solution
The unit of momentum is kilogram meter per second (kg·m/s), which is derived from the product of mass and velocity.
Correct Answer:
A
— Kilogram meter per second
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Q. What is the value of gravitational acceleration on Earth?
-
A.
9.81 m/s²
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B.
10 m/s²
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C.
9.8 m/s²
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D.
9.79 m/s²
Solution
The standard value of gravitational acceleration on Earth is approximately 9.81 m/s².
Correct Answer:
A
— 9.81 m/s²
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Q. Which of the following describes the relationship between mass and weight?
-
A.
Weight = Mass x Acceleration due to gravity
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B.
Weight = Mass / Acceleration due to gravity
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C.
Weight = Mass + Acceleration due to gravity
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D.
Weight = Mass - Acceleration due to gravity
Solution
Weight is the force exerted by gravity on an object and is calculated as Weight = Mass x Acceleration due to gravity (W = mg).
Correct Answer:
A
— Weight = Mass x Acceleration due to gravity
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