Levers - focus on First Class

An example of a lever is a ...

• pulley
• bicycle 
• scissors 
• screw 

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

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. 

When you kick a ball the fulcrum is your ..

• foot

• ball

• head

• hip or knee

If the fulcrum is closer to the effort, it will take 

• more force to lift the load
• less force to lift the load
• equal force to the lift the load
• no force to life the load 

Tags

NGSS.MS-PS2-2

In a first class lever, the _____ is in the middle.

• Effort
• Fulcrum
• Load
• Machine

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

Which of these is not part of the lever?

• Object
• Fulcrum
• Load
• Lever

The force placed on the simple machine to move the load is called the ____.

• Effort
• Fulcrum
• Load
• Lever

Simple machines allow us to do less work.

• TRUE
• FALSE

What is the fixed point around which a lever is free to turn?

• fulcrum
• resistance
• effort
• lever

3. Which type of lever is this?

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