Chapter 7: Linear Momentum
4 Questions
| Total Attempts: 250
Questions and Answers
- 1.What is the SI unit of momentum?
- A.
N*m
- B.
N/s
- C.
N*s
- D.
N/m
- 2.When a cannon fires a cannonball, the cannon will recoil backward because the
- A.
Energy of the cannonball and cannon is conserved.
- B.
Momentum of the cannonball and cannon is conserved.
- C.
Energy of the cannon is greater than the energy of the cannonball.
- D.
Momentum of the cannon is greater than the energy of the cannonball.
- 3.A freight car moves along a frictionless level railroad track at constant speed. The car is open on top. A large load of coal is suddenly dumped into the car. What happens to the velocity of the car?
- A.
It increases.
- B.
It remains the same.
- C.
It decreases.
- D.
Cannot be determined from the information given.
- 4.A child falls sideways off a sled while sledding on frictionless ice. What happens to the velocity of the sled?
- A.
It increases.
- B.
It remains the same.
- C.
It decreases.
- D.
Cannot be determined from the information given.
Questions: 16 | Attempts: 6249 | Last updated: Feb 1, 2018
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Sample QuestionMomentum has
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Sample QuestionThe momentum of a body is equal to its mass multiplied by its velocity.
This Quiz is only written as intermediate Students
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Sample Question1. The mass 'm' of the object is moving with a straight line motion and another object is mass equal to the first object and it is moving along the same direction. after collision what is the speed of the both objects
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