Levers

What is a lever?

• A complex machine with a bar that is used to make objects

• A simple machine with no bar

• A complex machine with no bar

• A simple machine with a bar that is used to move objects

WHAT ARE THE 3 MAIN PARTS OF A LEVER?

• FOOT, EFFORT, FULCRUM

• FULCRUM, EFFORT, REPORT

• FULCRUM, EFFORT, LOAD

How many classes of levers are there?

• 1

• 2

• 3

• 4

Levers make work ___________.

• Ok

• Alright

• Harder

• Easier

For a lever to be a first class lever the fulcrum needs to be ..

• between the load and the effort
• on one side and the load and effort on the other side 
• on the same side as the load arm. 

Levers make work ___________.

• Ok

• Alright

• Harder

• Easier

6. What kind of lever is this?

• First Class Lever
• Second Class Lever
• Third Class Lever

In second class lever, the load is between the fulcrum and _______.

• Load
• Effort
• Stone

A see saw is an example of a:

• 1st class lever
• 2nd class lever
• 3rd class lever

A wheelbarrow is an example of a:

• 1st class lever
• 2nd class lever
• 3rd class lever