Conservation of Momentum
Physics ⇒ Mechanics
Conservation of Momentum starts at 9 and continues till grade 12.
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See sample questions for grade 10
A 0.2 kg ball moving at 10 m/s bounces back at -8 m/s after hitting a wall. What is the change in momentum of the ball?
A 0.5 kg ball moving at 8 m/s collides head-on with a 0.5 kg ball moving at -4 m/s. What is the total momentum before the collision?
A 1.5 kg ball moving at 6 m/s collides with a 2.5 kg ball at rest. If the 1.5 kg ball comes to rest after the collision, what is the velocity of the 2.5 kg ball?
A 10 kg object is at rest. What is its momentum?
A 2 kg ball moving at 3 m/s collides with a stationary 1 kg ball. If the 2 kg ball comes to rest after the collision, what is the velocity of the 1 kg ball after the collision?
A 3 kg cart moving at 2 m/s collides and sticks to a 2 kg cart at rest. What is their common velocity after the collision?
A 4 kg object moving at 5 m/s collides with a 2 kg object moving at -3 m/s. What is the total momentum after the collision if no external force acts?
A 5 kg object moves at 4 m/s to the right. What is its momentum?
Describe the difference between elastic and inelastic collisions in terms of momentum and kinetic energy.
Explain why a gun recoils when it is fired.
Explain why passengers lurch forward when a moving bus suddenly stops.
If the net external force on a system is zero, what can you say about the system's total momentum?
Is momentum a scalar or a vector quantity?
State the law of conservation of momentum.
Two ice skaters push off from each other. Skater A has a mass of 60 kg and moves at 2 m/s. Skater B has a mass of 40 kg. What is the velocity of Skater B?
A 0.2 kg ball moving at 15 m/s collides with a 0.3 kg ball at rest. If after the collision, the 0.2 kg ball moves at 5 m/s, what is the velocity of the 0.3 kg ball?
A 0.5 kg ball moving at 10 m/s collides with a 1 kg ball at rest. If after the collision, the 0.5 kg ball moves at -2 m/s, what is the velocity of the 1 kg ball?
A 0.5 kg ball moving at 8 m/s collides with a 0.5 kg ball at rest. If the collision is perfectly elastic, what are the velocities of both balls after the collision?
A 0.6 kg ball moving at 12 m/s collides with a 0.4 kg ball moving at -8 m/s. After the collision, the 0.6 kg ball moves at 4 m/s. What is the velocity of the 0.4 kg ball after the collision?
A 0.8 kg ball moving at 7 m/s collides elastically with a 1.2 kg ball initially at rest. If after the collision, the 0.8 kg ball moves at 2 m/s in the same direction, what is the velocity of the 1.2 kg ball after the collision?
