Practice Conservation Of Momentum (A.2.4) - Theme A: Space, Time, and Motion

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11 questions

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4 cards from this section. Quick, good the night before a test.
Exercise
6 questions · about 4 min · pass mark 70%. Hints available.
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Quiz
5 questions · about 3 min · pass mark 70%. Hints available.
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6 sample questions

Question 1.
Define momentum in your own words.
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Think about the equation p = mv.
Question 2.
What does conservation of momentum imply?
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Consider the direction and quantities involved.
3Question 3.
What is the formula for momentum?
- p = m + v
- p = mv
- p = m/v
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Think of the relationship between mass and velocity.
4Question 4.
In an inelastic collision, is kinetic energy conserved?
- True
- False
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Remember the properties of elastic vs. inelastic collisions.
Question 5.
A rocket with a mass of 100 kg starts in space at rest. If it expels gas at a velocity of 50 m/s, what will be the rocket's velocity if it ejects 10 kg of gas?
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Apply the conservation principle and carefully set the equations.
Question 6.
Consider a 2 kg object traveling at 5 m/s collides elastically with a stationary object of mass 3 kg. What are the final velocities of both objects?
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You will create two equations to solve for the unknown velocities after collision.

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