Conservation of Momentum
Physics ⇒ Mechanics
Conservation of Momentum starts at 9 and continues till grade 12.
QuestionsToday has an evolving set of questions to continuously challenge students so that their knowledge grows in Conservation of Momentum.
How you perform is determined by your score and the time you take.
When you play a quiz, your answers are evaluated in concept instead of actual words and definitions used.
See sample questions for grade 10
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?
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?
Which of the following best describes an inelastic collision? (1) Kinetic energy is conserved (2) Momentum is not conserved (3) Objects stick together after collision (4) Objects bounce off each other without loss of energy
Which of the following is a necessary condition for momentum to be conserved in a system? (1) The system must be isolated (2) The system must be open (3) The system must have friction (4) The system must be accelerating
Which of the following is NOT a condition for the law of conservation of momentum to hold? (1) No external force acts on the system (2) The system is closed (3) The system is open (4) The system is isolated
Which of the following is the correct formula for momentum? (1) mass × acceleration (2) mass × velocity (3) force × time (4) velocity × time
Fill in the blank: In a closed system, the total momentum before an event is ________ the total momentum after the event.
Fill in the blank: Momentum is the product of mass and ________.
Fill in the blank: The momentum of a system is conserved only if the net external force is ________.
Fill in the blank: The momentum of an object is zero if its ________ is zero.
True or False: In a perfectly inelastic collision, the colliding objects stick together after the collision.
True or False: In an isolated system, the total momentum before and after a collision is always the same.
True or False: The direction of momentum is always the same as the direction of velocity.
True or False: The law of conservation of momentum applies only to elastic collisions.
