Levers

What type of basic machine is a ladder?

• lever

• inclined plane

• pulley

Draw a first class lever

Draw a second class lever

Draw a third class lever

What is an example of a second class lever?

• wheelbarrow

• scissor

• bottle opener

• broom

Second class levers ALWAYS give mechanical advantage

• True

• False

Third class levers NEVER give mechanical advantage

• True

• False

What is examples of third class levers?

• 
• 
• 
• 

A lever is a simple mechanism that helps us to _____, _____ or ______ objects.

• pull, paint or fix

• pull, push or lift

• push, lift or kick

• pull, push or bump

What class of lever is a scissor?

• second class

• third class

• first class