Unit 6 machines and forces

What is a force?

Complete the definition: a force is ...

What can a force change?

• Shape and direction

• Speed and shape

• Direction and speed

• Shape, speed and direction

Can you see a force?

• Yes

• No

• Sometimes

Can you feel the force?

• yes

• no

• sometimes

Write the name of the non-contact forces

The contact forces are...

• Magnetism and buoyancy

• Buoyancy and gravity

• Friction and buoyancy

• Friction and gravity

How many effects have a force?

• 1

• 2

• 3

• 4

Complete the definiton of simple machine:

A simple machine has ...

How many types of forces do we have?

• 2

• 4

• 6

• 8

• 10

Write the name of this simple machine