Levers Simple Machines

Levers make work ________.

• Harder

• Easier

• Alright

• OK

This baseball pitcher is demonstrating which type of lever at the shoulder?

• 1st class

• 2nd class

• 3rd class

• 4th class

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

• Load

• Effort

• Stone

Which of the following does a simple machine do?

• allows the users to apply less force over a longer distance

• reduce the amount of force needed to do work

• change the direction of the applied force

• all of the above

A lever is a simple machine with bar that that rotates. the part of the lever that rotates or turns is called the?

• Effort arm

• Load arm

• Pivot or fulcrum

A lever is a simple machine with bar that that rotates. the part of the lever where you apply a force is called the?

• Effort arm

• Load arm

• Pivot or fulcrum

A nut cracker is an example of a

• first class lever

• second class lever

• third class lever

Tags

NGSS.MS-PS2-2

A sugar tong is an example of a

• first class lever

• second class lever

• third class lever

If a lever allows you to apply 6N of effort force to lift a 18N load, then the lever has a mechanical advantage of...

• 3

• 6

• 9

• 12

• 18

Tags

NGSS.MS-PS2-2

If a lever allows you to apply 1N of effort force to lift a 5N load, then the lever has a mechanical advantage of...

• 1

• 5

• 25

• 15

• 0.5

Tags

NGSS.MS-PS2-2