FORCES+++QUIZ+TIME

....
 * QUIZ TIME FORCES**

1.Which of these is the best way to measure a force?
The best way to measure a force is using a force meter.

**2**. Forces can be:
Forces can be both pushes and pulls.

**3**.What is the unit of force called?
The unit of force is the newton, N.

**5**.What is the weight of a 20 kg box on the Earth?
A 20kg box on Earth weighs 200N.

**6**.What is the pressure exerted by a man standing on one leg?
The pressure exerted by a man standing on one leg is twice the pressure he exerts when standing on two legs

**7**.What can we say about the forces on an object that is not moving?
If an object is not moving, the forces must be balanced.

**9**.The arrows in this diagram represent the sizes of forces acting on a stationary tennis ball. What will happen to the tennis ball?
The box in this diagram will move downwards.

**10**. What happens to the air resistance on a car as the car goes faster?
As a car goes faster, air resistance increases.