2E Forces 01

What is a force?

• distance between 2 people

• mass

• a push or pull

• when Mrs Lim stares at me in class

The SI unit of force is

• m/s
• N/kg

• N

• kg

Which of the following is NOT an example of a non-contact force?

• 
• 
• 
• 

Which two forces are acting on the dog as it flails through the air and tumbles on the ground?

• elastic and magnetic force

• gravitational and magnetic force

• frictional and magnetic force

• gravitational and frictional force

What force is greatest on a compass?

• elastic force

• frictional force

• magnetic force

• gravitational force

What force ultimately slows the roller coaster to a stop?

• weight

• elastic force

• frictional force

• magnetic force

______________ is the amount of gravitational force acting on an object.

• Weight

• Mass

Charlotte has a weight of 360 N on Earth but only weighs 60 N on the moon. What can you infer from this fact? 

• Moon has a weaker gravitational field strength than Earth.

• Moon has a stronger gravitational field strength than Earth.

• Moon and Earth has an equal gravitational field strength.

• Her mass did not change when the location changes.

What is the SI unit of pressure?

• N

• m/s
• Pa

• N/cm^2

Look at the calculation triangle for pressure. How do we calculate area?

• F ÷ A

• F x P

• P x F

• F ÷ P