Quiz 6: Linear Momentum
- 1.If a mass is at rest, what must be applied to cause it to move?
- A.
Kilograms
- B.
Speed
- C.
Vectors
- D.
Force
- 2.A person jumps to the ground from a platform 10 feet high. Which of the following is true?
- A.
The person has more kinetic energy before they jump than after they jump.
- B.
The person has less potential energy at the top of the platform than in the air.
- C.
The person's potential energy at the instant they jump is approximately equal to their kinetic energy the instant they land.
- D.
The person's kinetic energy at the instant they jump is approximately double their potential energy the instant they land.
- 3.The kinetic energy of an object will increase the most if you __________________.
- A.
Double the velocity of the object
- B.
Double the mass of the object
- C.
Double the potential energy
- D.
Double the temperature of the object
- 4.An object with mass "m" kilograms is suspended "h" meters above the ground by a string. If the string is cut, what will the velocity of the object be at the instant it hits the ground?
- A.
The square root of 2gh
- B.
One-half the mass squared
- C.
Two times ghm squared
- D.
H-2gm
- 5.Which of the following is NOT a consequence of "The Law of Conservation of Energy"?
- A.
Potential Energy can never be greater than Kinetic Energy
- B.
The energy in a closed system is always constant
- C.
The Kinetic Energy of a dropped object at the instant it hits the ground is roughly equal to the potential energy of the object at the instant it was dropped
- D.
It is not necessary to use Kinematics to discover the velocity of an object accelerated by gravity if you know it's initial Potential Energy and its mass.
- 6.Momentum is the product of ___________.
- A.
Mass times velocity
- B.
Force times distance
- C.
Speed times acceleration
- D.
Time and space
- 7.If two objects collide with each other, _______________.
- A.
The sum of their momentums after the collision is equal to the sum of their momentums before the collision
- B.
The momentum before the collision is always greater than the total momentum after the collision
- C.
The object with greater mass always has greater momentum
- D.
They both lose momentum at the moment of impact
- 8.If a football player running down the field is tackled by another football player who holds onto the first football player so that they both fly out of bounds together, that collision is ___________.
- A.
Elastic
- B.
Inelastic
- C.
Momentum
- D.
Invisible
- 9.When playing billiards, the collisions between the balls are best described as __________________.
- A.
Elastic
- B.
Inelastic
- C.
Expensive
- D.
Exhaustive
- 10.Momentum is a __________ measurement.
- A.
Vector
- B.
Scalar
- C.
Negative
- D.
Quantitative
Questions: 15 | Attempts: 7567 | Last updated: Aug 16, 2022
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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.
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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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