Quiz
AS Level Physics U4. Systems Quiz
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Perguntas do quiz (12)
1A system is composed of two blocks. The blocks, sliding on a horizontal frictionless surface, collide and stick together. Which of the following statements are correct regarding the system? There are two correct answers.
- AThis is an open system.
- BThis is a closed system.
- CFriction is an external force on this system.
- DThere is no net external force on this system.
2A system is composed of two blocks. The blocks, sliding on a horizontal frictionless surface, collide and bounce apart.
Which of the following statements are correct regarding the system? There are two correct answers.- AThis is an open system.
- BThis is a closed system.
- CFriction is an external force on this system.
- DThere is no net external force on this system.
3For the two physical quantities, impulse and force, which one of the following is correct?
- AA Impulse is a scalar and force is a scalar.
- BB Impulse is a scalar and force is a vector.
- CC Impulse is a vector and force is a scalar.
- DD impulse is a vector and force is a vector.
4The rate of change of momentum of a body falling freely under gravity is equal to its ..........
- AA weight.
- BB power.
- CC kinetic energy.
- DD potential energy.
5A force, F, varies with time, t, as shown by the graph and is applied to a body initially at rest on a smooth surface.
What is the momentum of the body after 5.0 s?- AA zero.
- BB 12.5 N s.
- CC 25 N s.
- DD 50 N s.
6A particle of mass m strikes a rigid wall perpendicularly from the left with velocity v.
If the collision is perfectly elastic, the change in momentum of the particle which occurs as a result of the collision is ......- AA 2mv to the right.
- BB 2mv to the left.
- CC mv to the left.
- DD zero.
7The graph shows how the force acting on a body changes with time.
The body has a mass of 0.25 kg and is initially at rest. What is the speed of the body after 40 s assuming no other forces are acting?
- AA 200 m.s^–1
- BB 400 m.s^–1
- CC 800 m.s^–1
- DD 1600 m.s^–1
8Which one of the following statements is correct?
The force acting on an object is equivalent to .......- AA its change of momentum.
- BB the impulse it receives per second.
- CC the energy it gains per second.
- DD its acceleration per metre.
9The graph shows the variation with time, t, of the force, F, acting on a body.
What physical quantity does the area X represent?
- AA the displacement of the body
- BB the acceleration of the body
- CC the change in momentum of the body
- DD the change in kinetic energy of the body
10 A rail truck X travels along a level track and collides with a stationary truck Y. The two trucks move together at the same velocity after the collision.
Which line, A to D, in the table states how the total momentum and the total kinetic energy of the trucks change as a result of the impact.
- AA
- BB
- CC
- DD
11The graph shows how the force on a glider of mass 2000 kg changes with time as it is launched from a level track using a catapult.
Assuming the glider starts at rest what is its velocity after 40 s?
- AA 2.5 m.s^–1
- BB 10 m.s^-1
- CC 50 m.s^-1
- DD 100 m.s^-1
12Which of the following is a possible unit for rate of change of momentum?
- AA N.s
- BB N.s^-1
- CC kg.m.s^-1
- DD kg.m.s^-2
Informações
- Descrição
- Quiz for AS Level Physics on the systems approach to solving Physics problems.
- Autor
- Jeffrey Piggott
- Idioma
- English
- Visualizações
- 64
- Histórico
- Criado em 16 set 2018 · atualizado em 16 set 2018
- Etiquetas
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