Physical Processes - Forces In Action
Take a look at this: Bitesize Revision before you complete the quiz.
- 1.A girl stands still holding a racket on a tennis court. A ball is coming towards her. Which two forces are balanced?
- A.
Her weight and a reaction force from the ground
- B.
Air resistance on the ball and gravity
- C.
The force of her opponent's hit on the ball and air resistance
- 2.When an object falls, air resistance ...
- A.
Acts in the opposite direction to the weight
- B.
Acts in the same direction to the weight
- C.
Does not act at all
- 3.Weight is a force and is measured in ...
- A.
Newtons
- B.
Kilograms
- C.
Metres
- 4.Where would you feel heaviest?
- A.
The Earth
- B.
The moon
- C.
You would feel equally heavy on both
- 5.Which of the following is TRUE?
- A.
Gravity only acts through air, not through water or land
- B.
Gravity does not act on aeroplanes flying in the sky
- C.
Gravity always acts towards the centre of the earth
- 6.If gravity pulls you towards the centre of the earth, why don't you fall through the pavement?
- A.
Because gravity doesn't act through pavements
- B.
The pavement exerts an equal force in the opposite direction
- C.
Because gravity runs out
- 7.Which gives the smallest reading on a forcemeter?
- A.
An apple suspended in water
- B.
An apple suspended in air
- C.
They both give the same reading
- 8.Which of these is not a force?
- A.
Friction
- B.
Weight
- C.
Height
- 9.Which of these is FALSE?
- A.
A moving object carries on moving until a force stops it
- B.
A moving object eventually runs out of force and slows down
- C.
A moving object travels in a line until a force changes its direction
- 10.When an object is at rest/stationary ...
- A.
There are no forces acting on it
- B.
There are forces acting on it but these forces are balanced
- C.
There is just one force acting on it, gravity
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