Pulleys

What does this image represent?

• A pulley

• A wedge

• A lever

• A wheel and axle

What are two types of pulleys?

• wings, fries

• load. weight

• fixed, movable

• effort, force

Which of the following is not a characteristic of a pulley?

• Groovy Wheel

• Ideal

• Frame/block

• inclination

How do pulleys make work easier?

• they change the direction of a force

• they change the amount of force required

• the distance over which the force is applied

• the measurement of an object

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

The opposite of input is:

• output

• force

A pulley is an example of a:

• Simple Machine

• Book

• Science Tool

• Test Taking Strategy

Wells use a pulley system to:

• hoist the bucket

• provide water

• drop items

• nourish water

Tags

NGSS.MS-PS2-4

NGSS.MS-PS3-2

What is a pulley?

• a simple lifting machine consisting of a rope which unwinds from a wheel on to a cylindrical drum or shaft joined to the wheel to provide mechanical advantage.

• a rigid bar resting on a pivot, used to help move a heavy or firmly fixed load with one end when pressure is applied to the other.

• a wheel with a grooved rim around which a cord passes. It acts to change the direction of a force applied to the cord and is chiefly used (typically in combination) to raise heavy weights.

• a piece of wood, metal, or some other material having one thick end and tapering to a thin edge, that is driven between two objects or parts of an object to secure or separate them.

How do fixed pulleys make work easier?

• they change the direction of a force

• they change the amount of force required

• the distance over which the force is applied

• the measurement of an object

Identify the type of pulley

• fixed

• moveable

• block and tackle or pulley system

Tags

NGSS.MS-PS2-2