| Date | May 2015 | Marks available | 1 | Reference code | 15M.1.SL.TZ1.7 |
| Level | Standard level | Paper | Paper 1 | Time zone | Time zone 1 |
| Command term | Question number | 7 | Adapted from | N/A |
Question
Two identical spheres, each of mass m and speed v, travel towards each other on a frictionless surface in a vacuum.
The spheres undergo a head-on elastic collision.
Which statement correctly describes the spheres after the collision?
A. The total momentum of the spheres is 2mv.
B. Each sphere has zero momentum.
C. The total kinetic energy of the spheres is mv2.
D. Each sphere has zero kinetic energy.
Markscheme
C
Examiners report
[N/A]
Syllabus sections
Show 64 related questions
- 17N.2.SL.TZ0.1d: The girl chooses to jump so that she lands on loosely-packed snow rather than frozen ice....
- 17N.2.SL.TZ0.1c: When the sledge is moving on the horizontal region of the snow, the girl jumps off the...
- 17N.1.SL.TZ0.8: A moving system undergoes an explosion. What is correct for the momentum of the system and...
- 17N.1.HL.TZ0.7: A toy car of mass 0.15 kg accelerates from a speed of 10 cm s–1 to a speed of 15 cm s–1. What...
- 17M.2.SL.TZ1.1d.ii: Explain, with reference to change in momentum, why a flexible safety net is less likely to...
- 17M.2.SL.TZ1.1d.i: Calculate the impulse required from the net to stop the skier and state an appropriate unit...
- 17M.1.HL.TZ2.7: A stationary nucleus of polonium-210 undergoes alpha decay to form lead-206. The initial...
- 17M.1.HL.TZ1.7: A cyclist accelerates in a straight line. At one instant, when the cyclist is exerting a...
- 17M.1.SL.TZ2.9: A ball of mass 0.2 kg strikes a force sensor and sticks to it. Just before impact the ball is...
- 17M.1.SL.TZ2.8: A net force acts on a body. Which characteristic of the body will definitely change? A....
- 17M.1.SL.TZ1.9: An inelastic collision occurs between two bodies in the absence of external forces. What...
- 17M.1.SL.TZ1.15: Two pulses are travelling towards each other. What is a possible pulse shape when the...
- 16M.2.SL.TZ0.1d: The spring decompression takes 0.42s. Determine the average force that the spring exerts on...
- 16N.1.SL.TZ0.9: Two objects m1 and m2 approach each other along a straight line with speeds v1 and v2 as...
- 16N.1.SL.TZ0.8: A ball of mass m strikes a vertical wall with a speed v at an angle of θ to the wall. The...
- 16N.1.SL.TZ0.5: An object, initially at rest, is accelerated by a constant force. Which graphs show the...
- 16M.1.SL.TZ0.7: A ball with mass m moves horizontally with speed u. The ball hits a...
- 15M.2.SL.TZ2.6a: State the law of conservation of linear momentum.
- 15M.2.SL.TZ2.6c: Two identical toy cars, A and B are dropped from the same height onto a solid floor without...
- 14M.1.SL.TZ2.6: A ball X moving horizontally collides with an identical ball Y that is at rest. X strikes...
- 14M.1.SL.TZ2.5: In the collision between two bodies, Newton’s third law A. only applies if momentum is...
- 14M.1.SL.TZ2.7: A ball is moving horizontally and strikes a vertical wall from which it rebounds...
- 14M.1.SL.TZ2.8: An insect of mass m jumps vertically from rest to a height h. The insect releases the energy...
- 14N.1.SL.TZ0.6: No external forces act on a given system during an inelastic collision. For this system,...
- 15N.2.SL.TZ0.6c.i: Calculate the speed of O immediately before the collision.
- 15N.2.SL.TZ0.6c.ii: The duration of the collision is 0.45 s. Determine the average force acting on O.
- 14M.2.SL.TZ2.4d: (i) State the principle of conservation of momentum. (ii) Show that the speed of the...
- 11N.1.SL.TZO.6: A stone is thrown vertically upwards from the surface of Earth. Which of the following...
- 11N.1.SL.TZO.9: An egg dropped on the floor is likely to break. However, when it is wrapped in a cloth it is...
- 12N.1.SL.TZ0.6: A ball of mass m travels horizontally with speed v before colliding with a vertical wall. The...
- 13N.1.SL.TZ0.5: The net force on a body is F. The impulse of F is equal to the A. change in momentum of the...
- 13N.1.SL.TZ0.6: In an inelastic collision A. momentum and kinetic energy are both conserved.B. momentum is...
- 13M.1.HL.TZ1.3: Which of the following is always true for an object moving in a straight line at constant...
- 13M.2.SL.TZ1.4c: In a different experimental arrangement, the club head is in contact with the ball for a...
- 12M.1.SL.TZ2.5: The momentum of a particle stays constant provided that A. it moves in a circle with...
- 13M.2.SL.TZ1.4b: The diagram shows the deformation of a golf ball and club head as they collide during a...
- 12M.1.SL.TZ1.7: Which of the following is an elastic collision? A. Two railway trucks collide and they link...
- 12M.1.HL.TZ1.3: The momentum of an object changes by Δp in a time Δt. What is the impulse acting on the...
- 13M.2.SL.TZ2.7c: Far from any massive object, a space rocket is moving with constant velocity. The engines of...
- 13M.2.SL.TZ2.7b: State the law of conservation of momentum.
- 13M.2.SL.TZ2.7d: Jane and Joe are two ice skaters initially at rest on a horizontal skating rink. They...
- 13M.1.SL.TZ2.7: A ball of mass 0.40 kg travels horizontally and strikes a vertical wall with a speed of 5.0...
- 12M.2.SL.TZ2.6b: State, in terms of momentum, Newton’s second law of motion.
- 12M.2.SL.TZ2.6c: Show, using your answer to (b), how the impulse of a force F is related to the change...
- 12M.2.SL.TZ2.6c: Show, using your answer to (b), how the impulse of a force F is related to the change...
- 11M.2.SL.TZ2.8a: (i) The...
- 12M.2.SL.TZ1.8b: As a result of the collision, the blocks reverse their direction of motion and travel at the...
- 12M.2.SL.TZ1.8c: (i) State Newton’s third law of motion. (ii) During the collision of the blocks, the...
- 12M.2.SL.TZ1.8a: Determine the time taken for the blocks to come into contact with each other.
- 12N.2.SL.TZ0.4b: Gravel falls vertically onto a moving horizontal conveyor belt. (i) The gravel falls at a...
- 12N.2.SL.TZ0.4a: State the law of conservation of linear momentum.
- 12N.2.SL.TZ0.4c: The conveyor belt moves with a constant horizontal speed of 1.5 m s–1. As the gravel lands on...
- 13N.2.SL.TZ0.6a: State the condition for the momentum of a system to be conserved.
- 13N.2.SL.TZ0.6d: The locomotive engine in (c) gives a truck X a sharp push such that X moves along a...
- 13N.2.SL.TZ0.6b: A person standing on a frozen pond throws a ball. Air resistance and friction can be...
- 11M.1.SL.TZ1.6: A tennis ball of mass m moving horizontally with speed u strikes a vertical tennis racket....
- 11M.2.SL.TZ1.2b: The diagram below shows the momentum of the electron as it enters and leaves the region of...
- 10M.1.SL.TZ1.6: A ball of weight \(W\) is travelling horizontally towards a vertical wall. It strikes the...
- 10N.1.SL.TZ0.8: A gas atom strikes a wall with speed \(v\) at an angle \(\theta \) to the normal to the wall....
- 10M.1.SL.TZ1.7: Two objects undergo an inelastic collision. Which of the following is correct in respect of...
- 10N.2.HL.TZ0.B4Part1.c: (i) Ignoring air resistance, calculate the horizontal distance travelled by the clay...
- 10N.2.SL.TZ0.B3Part2.a: State the principle of conservation of momentum.
- 10N.2.SL.TZ0.B3Part2.b: (i) Show that the initial speed of the clay block after the air-rifle pellet strikes it...
- 10N.2.SL.TZ0.B3Part2.d: The clay block is dropped from rest from the edge of the table and falls vertically to the...
