Conservation of momentum in collisions
Grade 11 Science Worksheet
Circle the best answer, or write your answer on the line.
East is positive. A 1.5 kg cart at 6 m/s hits a 0.5 kg cart moving at 0 m/s, and they stick together. What is their velocity after, Ari?
East is positive. A 2.5 kg cart at 4 m/s hits a 1.5 kg cart moving at -2 m/s, and they stick together. What is their velocity after, Bo?
East is positive. A 4 kg cart at 3 m/s hits a 2 kg cart moving at 1.5 m/s, and they stick together. What is their velocity after, Esme?
In the momentum bar chart, what is the joined carts' momentum after, Jun?
- 6 kg·m/s
- 8 kg·m/s
- 0, since they stuck
- 10 kg·m/s
In the momentum bar chart, what is the joined carts' velocity after, Kira?
Use the picture in question 4.
- 3 m/s east
- 1.5 m/s east
- 0 m/s, since they stuck
- 6 m/s east
In the momentum bar chart, what were the carts' velocities before, Luz?
Use the picture in question 4.
- A: 8 m/s east; B: 2 m/s west
- A: 2 m/s east; B: 0.5 m/s west
- A: 4 m/s east; B: 1 m/s east
- A: 4 m/s east; B: 1 m/s west
Two carts at rest are pushed apart by a spring. What is their total momentum afterward, Milo?
- The sum of both speeds
- More than before
- Equal to the spring's force
- 0 kg·m/s
From rest, a 1 kg cart flies east at 3 m/s. The other cart is 2 kg. What is its momentum, Pia?
- 0 kg·m/s
- +3 kg·m/s, east
- −3 kg·m/s, west
- −6 kg·m/s
To use conservation of momentum for a two-cart collision, which system should Ren choose?
- Both carts together
- Just the slower cart
- Just the faster cart
- The track by itself
In the two-cart system, which forces cannot change the total momentum, Zee?
- Friction from a rough rug
- The carts' pushes on each other
- A hand pushing one cart from outside
- A magnet pulling one cart from outside