Momentum, Impulse, and Conservation of Momentum Assessment

Momentum, Impulse, and Conservation of Momentum Unit Assessment

Take our Momentum, Impulse, and Conservation of Momentum unit assessment quizzes. Follow links to the lessons that need attention.

Impulse and Momentum Quiz

Do you know the difference between impulse and momentum and solve related equations?

Impulse: More Time Means Less Force

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1 / 9

What is the unit for momentum?

kg∙m/s

N∙m/s

m/s

2 / 9

Which would change the momentum of an object the most.

one third the force applied for half the time

double force and keep time applied the same

triple force and decrease the time applied by a half

double force and double time it is applies

Impulse changes the momentum and the equation is J = Ft

Both force and time applied are directly related to impulse. Doubling both would create four times the impulse and would be the greatest of the choices.

3 / 9

Impulse is equal to

change in momentum

mass times change in velocity

force times time

all choices

The main impulse equation if J=Ft
Impulse is also equal to change in momentum
Change in momentum is equal to mass times change in velocity

4 / 9

How much momentum does the 7.34767309 × 10²² kilogram moon have at its mean orbital velocity of 1022 m/s?

2.4 x 10^22 kg∙m/s

8.1 x 10^25 kg∙m/s

1.9 x 10^22 kg∙m/s

7.5 x 10^25 kg∙m/s

5 / 9

How much more momentum would a moving object have with twice the mass?

1/2 times

2 times

4 times

1/2

6 / 9

What is the change in momentum of an 85 kg person running at 8 m/s forward when hitting a wall and bouncing back at 3 m/s?

435 kg∙m/s

-935 kg∙m/s

-1251 kg∙m/s

894 kg∙m/s

7 / 9

How many times does impulse change when you double the force applied?

2 times

1/4 times

1/2 times

4 times

8 / 9

How much force is required to stop Big Mac a 135 kg football player running at 6.0 m/s in 0.050 seconds?

8734 N

452 N

14200 N

16200 N

9 / 9

How does padding make it safer for athletes on impact?

it increases the time of impact decreasing the force

it decreases the impulse decreasing the force

it decreases the change in momentum decreasing the force

It does not decrease the momentum since it does not decrease the mass, staring, or ending velocity. This is equal to impulse and therefore does not decrease that. It increases the time the force is applied for and thus decreases the force.

Your score is

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(Click Here to View Impulse and Momentum Material)

Conservation of Momentum and Collisions Quiz

Do you know how to solve a conservation of momentum problem?

Take our quiz to find out

1 / 8

What type of collision do you have when momentum is conserved but kinetic energy is not?

elastic collision

inelastic collision

neither both momentum and kinetic energy are always conserved

In an elastic collision momentum and kinetic energy are conserved

In an inelastic collision momentum is conserved but kinetic energy is not

Kinetic energy is only a part of the entire energy. The entire energy would be conserved in either case but the definition is only talking about kinetic energy.

2 / 8

What type of collision do you have when both momentum and kinetic energy are conserved?

elastic collision

neither both momentum and kinetic energy are never conserved

inelastic collision

In an elastic collision momentum and kinetic energy are conserved

In an inelastic collision momentum is conserved but kinetic energy is not

Kinetic energy is only a part of the entire energy. The entire energy would be conserved in either case but the definition is only talking about kinetic energy.

3 / 8

A 5000 kg garbage truck traveling 10 m/s right hits a 1000 kg car traveling 2 m/s right. If the garbage truck is traveling 2 m/s right after the collision, what is the final velocity of the car?

42 m/s right

10 m/s right

4 m/s right

27 m/s right

4 / 8

An 145 kg astronaut at rest throws a 15 kg space rock 6 m/s. What is the final velocity of the astronaut?

1.3 m/s left

4.1 m/s left

3.2 m.s right

0.62 m/s left

5 / 8

A 5 kg bowling ball traveling 6.2 m/s right strikes a 1.6 kg bowling pin at rest causing it to go 18 m/s to the right. How fast is the bowling ball traveling after the elastic collision?

3.42 m/s right

0.13 m/s right

1.12 m/s right

0.44 m/s right

6 / 8

A 0.25 kg ball of clay is thrown at 6 m/s right towards a 0.8 kg toy car at rest. How fast is the clay stuck to the car traveling after the collision?

1.7 m/s right

0.45 m/s right

1.4 m/s right

4.3 m/s right

7 / 8

What type of collision is the following?

A 0.25 kg ball of clay is thrown at 6 m/s towards a 0.8 kg toy car at rest. How fast is the clay stuck to the car traveling after the collision?

elastic collision

inelastic collision

neither

In an elastic collision objects maintain their shape and travel independently afterwards

In an inelastic collision at least one object changes its shape and heat is lost

8 / 8

What type of collision is the following?

A 5 kg bowling ball traveling 2 m/s right hits a 4 kg bowling ball at rest. After the collision the 4 kg bowling ball is traveling right at 2.5 m/s right.

inelastic collision

neither

elastic collision

In an elastic collision objects maintain their shape and travel independently afterwards

In an inelastic collision at least one object changes its shape and heat is lost

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(Click Here to View Conservation of Momentum and Collisions Material)

Momentum, Impulse, and Conservation of Momentum Unit Assessment

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