Momentum and Impulse Quiz

What is the formula for momentum?

• p = m / v

• p = mv

• p = mv^2

• p = m + v

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Define elastic collision.

• A collision in which kinetic energy and momentum are conserved

• A collision in which kinetic energy is converted to potential energy

• A collision in which kinetic energy is not conserved

• A collision in which momentum is not conserved

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Explain the concept of impulse.

• Impulse is the change in momentum of an object when a force is applied for a certain amount of time.

• Impulse is the speed of an object

• Impulse is the force applied to an object

• Impulse is the same as momentum

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What is the relationship between impulse and change in momentum?

• Impulse is equal to the change in momentum.

• Impulse has no effect on the change in momentum.

• Impulse is inversely proportional to the change in momentum.

• Impulse is directly proportional to the change in momentum.

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In an inelastic collision, what happens to the kinetic energy of the system?

• It becomes negative

• It increases

• It remains constant

• It decreases

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Give an example of an application of momentum in real life.

• Baking a cake

• Car safety features

• Walking a dog

• Playing video games

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What is the unit of momentum?

• kg m/s

• Joule

• m/s

• N

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State the law of conservation of momentum.

• The total momentum of a closed system remains constant if no external forces act on it.

• The total momentum of a closed system decreases over time

• The total momentum of a closed system increases over time

• The law of conservation of momentum only applies to open systems

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What is the difference between elastic and inelastic collisions?

• In elastic collisions, momentum is not conserved, while in inelastic collisions, momentum is conserved.

• In elastic collisions, kinetic energy is conserved, while in inelastic collisions, kinetic energy is not conserved.

• In elastic collisions, the objects stick together after the collision, while in inelastic collisions, the objects bounce off each other.

• In elastic collisions, the objects lose energy, while in inelastic collisions, the objects gain energy.

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How does impulse affect the motion of an object?

• It causes the object to disappear

• It changes the velocity or direction of the object.

• It increases the object's mass

• It has no effect on the object's motion

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