Grade 11 · Science · Physics

11th grade Momentum and impulse worksheet

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Momentum and impulse

Grade 11 Science Worksheet

NameDate

Circle the best answer, or write your answer on the line.

A bumper pushes on a cart with an average force of 200 N for 0.05 s. What impulse does it give, Ari?
A bumper pushes on a cart with an average force of 50 N for 0.4 s. What impulse does it give, Bo?
A bumper pushes on a ball with an average force of 1200 N for 0.01 s. What impulse does it give, Esme?
4.
In the momentum bar chart, what is the cart's change in momentum, Jun?
- −12 kg·m/s
- +6 kg·m/s
- −6 kg·m/s
- 0 kg·m/s
5.
In the momentum bar chart, what impulse does the foam bumper give the cart, Kira?
Use the picture in question 4.
- 0 N·s
- 6 N·s, east
- 6 N·s, west
- 2 N·s, west
6.
In the momentum bar chart, the stop takes 0.3 s. What is the average force on the cart, Luz?
Use the picture in question 4.
- 6 N
- 20 N
- 2 N
- 1.8 N
7.
In the force-time graph, what impulse does the bumper give, Milo?
- 10 N·s
- 20 N·s
- 0.5 N·s
- 40 N·s
8.
In the force-time graph, what impulse does the launcher give the ball, Noah?
- 8000 N·s
- 10 N·s
- 20 N·s
- 400 N·s
9.
The same cart is stopped in 0.5 s by foam or in 0.05 s by wood. How do the average forces compare, Ren?
- They are equal
- Foam: 10 times smaller
- Wood: 10 times smaller
- Foam: 10 times bigger
10.
To stop the same cart with half the average force, what must happen to the stopping time, Tala?
- It must quadruple
- It must halve
- It must double
- It stays the same

Momentum and impulse. Every version has 10 questions, and the answer key prints on the second page.

I can find momentum, p = mv, in kg·m/s, and compare objects by m × v, not by mass or speed alone. Momentum has a direction.
I can find impulse as J = FΔt (the area under a force-time graph) and know that it equals Δp.
I can find the change in momentum for a stop and for a bounce, and the average force F = Δp ÷ Δt.
I can explain soft bumpers: the same Δp over a longer time needs less force. A bounce needs more impulse than a stop.

Standard: HS-PS2-2

momentum: Mass × velocity: p = mv, in kg·m/s, with a direction

impulse: Force × time: J = FΔt, in N·s

change in momentum: Δp = momentum after − momentum before

average force: Δp ÷ Δt over the contact time

force-time graph: Force plotted against time; its area is the impulse

Your child added mass and speed. Momentum is mass × velocity, in kg·m/s.

Your child divided force by time. Impulse is force × time, in N·s.

Your child counted only the stopping part of a bounce. Bouncing back needs a second change of momentum, so add both speeds.

What is the most common mistake with momentum and impulse?

Your child added mass and speed. Momentum is mass × velocity, in kg·m/s.

Are these 11th grade science worksheets free to print?

Yes. All 6 printable versions at each level are free to print, with the answer key, and no account is needed.

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