Simple Machines Review

Which part is a fixed pulley?

• 1

• 2

• 3

• 4

Which part is the effort force?

• 1

• 2

• 3

• 4

Which inclined plane would require the least amount of force to move an object?

• A

• B

• C

• D

The efficiency of a machine doing work is always less than 100 percent because _______________.

• some efficiency is gained

• some efficiency is lost to friction

• the object doesn't move

• there is no force being used

Which is a moveable pulley?

• A

• B

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

Which is a fixed pulley?

• A

• B

Pulley systems that are made up of fixed and moveable pulleys are called ________________.

• block and tackle systems

• complex pulleys systems

• reverse pulley systems

Tags

NGSS.MS-PS2-2

What should they do to make it easier for the mouse to pick up the elephant?

• The elephant should move closer to the middle.

• The mouse should move closer to the middle.

Tags

NGSS.3-PS2-1

Which part is a moveable pulley?

• 1

• 2

• 3

• 4

Which part is a load?

• 1

• 2

• 3

• 4

Tags

NGSS.MS-PS2-4