Parts & Classes of Levers

What type of lever is this?

• First Class

• Second Class

• Third Class

Answer explanation

The load is at one end of the lever and the effort is at the other end. The fulcrum is between the load and the effort.

What type of lever is this?

• First Class

• Second Class

• Third Class

Answer explanation

The fulcrum is on one end of the lever and the effort is on the opposite end. The load is in between the fulcrum and the effort.

What type of lever is this?

• First Class

• Second Class

• Third Class

Answer explanation

The fulcrum is on one end of the lever and the load is on the opposite end. The effort is in between the fulcrum and the load.

A real-life example of a first class lever would be:

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• 
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Answer explanation

A pair of scissors has:

- the fulcrum in the middle (the screw that keeps both scissors together)

- the load on one side (the handles)

- the effort on the opposite side (the sharp ends of the scissors)

A real-life example of a second class lever would be:

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• 
• 

Answer explanation

A door has:

- the load in the middle (the door)

- the effort on one side (the door handle)

- the fulcrum on the opposite side (the hinges)

A real-life example of a third class lever would be:

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• 
• 

Answer explanation

A door has:

- the effort in the middle (the handle)

- the fulcrum on one side (the grip)

- the load on the opposite side (the head)

What are the three parts of a lever?

• Base, Effort, Substance

• Fulcrum, Effort, Load

• Effort, Base, Structure

• Structure, Load, Effort

What is the fulcrum?

• The base that the lever turns or pivots from

• Where the force is applied to move the weight

• Any weight being moved or pushed

What is the effort?

• The base that the lever turns or pivots from

• Where the force is applied to move the weight

• Any weight being moved or pushed

What is the load?

• The base that the lever turns or pivots from

• Where the force is applied to move the weight

• Any weight being moved or pushed