PLTW Pulleys

What does this image represent?

• A pulley

• A wedge

• A lever

• A wheel and axle

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

What are two types of pulleys?

• wings, fries

• load. weight

• fixed, movable

• effort, force

Pulleys make work:

• Easier

• Rigorous

A pulley is an example of a:

• Simple Machine

• Book

• Science Tool

• Test Taking Strategy

Identify the type of pulley

• fixed

• moveable

• block and tackle or pulley system

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

Identify the type of pulley

• Fixed

• Moveable

• Block and Tackle or pulley system

Tags

NGSS.MS-PS2-2

The diagram shows a movable pulley system. When moving a load, this pulley system changes the —

• direction of the force.
• amount of force needed.
• pull of gravity on the load.
• overall mass of the rope.

Tags

NGSS.MS-PS2-2

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

• 300

• 325

• 600

• 650

Tags

NGSS.MS-PS2-2

NGSS.MS-PS2-4

Which of the following is an example of a pulley?

• flag pole

• see saw

• jump rope

Identify the type of pulley

• Pulley System

• Fixed

• Moveable