11th grade Conservation of momentum in collisions worksheet

Conservation of momentum in collisions

Grade 11 Science Worksheet

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

1. 1.

   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?
2. 2.

   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?
3. 3.

   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?
5. 4.

   In the momentum bar chart, what is the joined carts' momentum after, Jun?

   • 8 kg·m/s
   • 0, since they stuck
   • 6 kg·m/s
   • 10 kg·m/s
6. 5.

   In the momentum bar chart, what is the joined carts' velocity after, Kira?

   Use the picture in question 4.

   • 1.5 m/s east
   • 6 m/s east
   • 0 m/s, since they stuck
   • 3 m/s east
7. 6.

   Two carts at rest are pushed apart by a spring. What is their total momentum afterward, Milo?

   • The sum of both speeds
   • Equal to the spring's force
   • 0 kg·m/s
   • More than before
8. 7.

   A 1 kg cart and a 3 kg cart are pushed apart from rest. Which moves faster, Noah?

   • The 1 kg cart, 3 times as fast
   • The 3 kg cart
   • They move equally fast
   • Neither moves
9. 8.

   From rest, a 1 kg cart flies east at 3 m/s. The other cart is 2 kg. What is its momentum, Pia?

   • −3 kg·m/s, west
   • +3 kg·m/s, east
   • −6 kg·m/s
   • 0 kg·m/s
10. 9.

    To use conservation of momentum for a two-cart collision, which system should Ren choose?

    • Just the slower cart
    • The track by itself
    • Both carts together
    • Just the faster cart
11. 10.

    Two carts collide on a rough rug. Why might their total momentum change, Tala?

    • The carts' pushes on each other change it
    • Momentum isn't conserved in collisions
    • The carts get lighter
    • The rug's friction is an outside force