Momentum and impulse
Grade 11 Science Worksheet

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?
In the momentum bar chart, what is the cart's change in momentum, Jun?
- 0 kg·m/s
- −6 kg·m/s
- −12 kg·m/s
- +6 kg·m/s
In the momentum bar chart, what impulse does the foam bumper give the cart, Kira?
Use the picture in question 4.
- 2 N·s, west
- 0 N·s
- 6 N·s, east
- 6 N·s, west
In the force-time graph, what impulse does the bumper give, Milo?
Force-time graph for a bumper pushing a cart (example data): time (s) across, 0 to 0.6, a mark every 0.1 s; force (N) up, 0 to 25, a mark every 5 N. The line joins (0 s, 20 N), (0.5 s, 20 N) with straight pieces. The force is a steady 20 N from 0 s to 0.5 s, making a rectangle. Force-time graph for a bumper pushing a cart (example data): time (s) across, 0 to 0.6, a mark every 0.1 s; force (N) up, 0 to 25, a mark every 5 N. The line joins (0 s, 20 N), (0.5 s, 20 N) with straight pieces. The force is a steady 20 N from 0 s to 0.5 s, making a rectangle. Force-time graph for a bumper pushing a cart (example data) 0 0.1 0.2 0.3 0.4 0.5 0.6 0 5 10 15 20 25 time (s) force (N) - 10 N·s
- 40 N·s
- 0.5 N·s
- 20 N·s
Force-time graph for a spring launcher pushing a ball (example data): time (s) across, 0 to 0.05, a mark every 0.01 s; force (N) up, 0 to 400, a mark every 100 N. The line joins (0 s, 0 N), (0.025 s, 400 N), (0.05 s, 0 N) with straight pieces. The force rises to 400 N and falls back to 0 over 0.05 s, making a triangle. Force-time graph for a spring launcher pushing a ball (example data): time (s) across, 0 to 0.05, a mark every 0.01 s; force (N) up, 0 to 400, a mark every 100 N. The line joins (0 s, 0 N), (0.025 s, 400 N), (0.05 s, 0 N) with straight pieces. The force rises to 400 N and falls back to 0 over 0.05 s, making a triangle. Force-time graph for a spring launcher pushing a ball (example data) 0 0.01 0.02 0.03 0.04 0.05 0 100 200 300 400 time (s) force (N) The force rises to 400 N and falls back to 0 over 0.05 s, making a triangle. In the force-time graph, what impulse does the launcher give the ball, Noah?
- 400 N·s
- 8000 N·s
- 20 N·s
- 10 N·s
In the force-time graph, the launcher's 10 N·s is compared with a steady 20 N push for 0.5 s. Which impulse is bigger, Pia?
Use the picture in question 7.
- Impulses can't be compared
- The launcher's, since 400 N is bigger
- The steady push, since it lasts longer
- Neither; both are 10 N·s
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 stays the same
- It must double
A cart either stops at a bumper or bounces straight back at the same speed. Which needs the bigger impulse, Zee?
- Neither needs an impulse
- They need the same impulse
- The bounce
- The stop