PreE 5.3 Pulleys

What are two types of pulleys?

• wings, fries

• load. weight

• fixed, movable

• effort, force

Tags

NGSS.MS-PS2-2

What is a formula to calculate the MA (mechanical advantage) of a pulley?

• MA= height/width

• MA= displacement of load / displacement of effort

• MA= radius of fixed pulley /radius of movable pulley

• MA= the number of ropes on the movable pulley

Tags

NGSS.MS-ETS1-1

Identify the type of pulley

• fixed

• moveable

• block and tackle or pulley system

Tags

NGSS.MS-ETS1-2

Identify the type of pulley

• Fixed

• Moveable

• Block and Tackle or pulley system

Tags

NGSS.MS-PS2-2

What is the ideal mechanical advantage (IMA) of this pulley?

• .5

• 1

• 1.5

• 2

Tags

NGSS.MS-PS2-2

A load of 650 newtons is lifted with this pulley. What is the input force required to do this work?

• 300

• 325

• 600

• 650

Tags

NGSS.MS-PS2-2

An input force of 450 newtons is applied to this pulley. What is the output force that will be lifted?

• 450

• 600

• 750

• 900

Tags

NGSS.MS-PS2-2

What is the ideal mechanical advantage of this pulley?

• 1

• 2

• 3

• 4

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

What is the input force required to lift am output force of 170 newtons using this pulley system?

• 57

• 114

• 85

• 90

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

What is the ideal mechanical advantage of this pulley system?

• 4

• 5

• 6

• 7

Tags

NGSS.MS-ETS1-1