Levers and Moments

1. A _________is a simple machine with a fulcrum and a rigid bar.

• Pivot
• Lever
• Wedge

3. Which type of lever is this?

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

2. The place where a lever pivots is called the _______.

• Pivot point
• Tissue
• Fulcrum

6. What kind of lever is this?

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

We use levers to make work easier.?

• True
• False

Tags

NGSS.MS-PS2-1

How many types of levers are there?

• 1
• 2
• 3
• 4

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

A lever is used to raised a mass with a weight of 12 Newtons using only 4 Newtons of force. How many times does the lever multiply the force?

• 12

• 4

• 3

• 32

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

What is the anticlockwise moment acting on this crane?

• 80,000Nm
• 100,000Nm
• 120,000Nm
• 140,000Nm

Tags

NGSS.HS-PS2-1