Test
AS Level Physics U4 Newtons Laws of Motion Quiz
Preguntas del test (6)
1A box of mass 8.0 kg rests on a horizontal rough surface. A string attached to the box passes over a smooth pulley and supports a 2.0 kg mass at its other end.
When the box is released, a frictional force of 6.0 N acts on it.
What is the acceleration of the box?- AA 1.4 m s^–2
- BB 1.7 m s^–2
- CC 2.0 m s^–2
- D2.6 m s^–2
2What is the definition of the force on a body?
- AA the mass of the body multiplied by its acceleration.
- BB the power input to the body divided by its velocity.
- CC the rate of change of momentum of the body.
- DD the work done on the body divided by its displacement .
3Newton’s third law of motion is often summarised as ‘Every action (force) has an equal and opposite reaction.’
A book rests on a table.
If the weight of the book is the ‘action’ force, what is the ‘reaction’ force?- AA the pull of the book on the Earth
- BB the pull of the Earth on the book
- CC the push of the book on the table
- DD the push of the table on the book
4A 0.10 kg mass is taken to Mars and then weighed on a spring balance and on a lever balance.
The acceleration due to gravity on Mars is 38% of its value on Earth.
What are the readings on the two balances on Mars? (Assume that on Earth g = 10 m s^–2.)
- AA
- BB
- CC
- DD
5 Water is pumped through a hose-pipe at a rate of 90 kg per minute. It emerges from the hose-pipe horizontally with a speed of 20 m s^–1.
Which force is required from a person holding the hose-pipe to prevent it moving backwards?- AA 30 N
- BB 270 N
- CC 1800 N
- DD 10 800 N
6A man weighs 240 N on Mars where the acceleration of free fall g is 4 m.s^–2. On the Moon, g is 2.0 m.s^-2.
Which statement is correct?- AA The man has a mass on Mars of 60 N.
- BB The man has a mass on the Moon of 120 kg.
- CC The man weighs 120 N on the Moon.
- DD The man weighs 240 N on the Moon.
Información
- Descripción
- Quiz for AS Level Physics on Newtons Laws
- Autor
- Jeffrey Piggott
- Idioma
- English
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