Pulleys

A simple machine that has a grooved wheel that holds a rope or a cable. 

• inclined plane

• screw

• pulley

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

What does this image represent?

• A pulley

• A wedge

• A lever

• A wheel and axle

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.

In a simple machine, what is the load?

• point where the lever arm pivots

• the force needed to move the load

• the mass lifted by a system

• the distance the load travels

Identify the type of pulley

• fixed

• moveable

• block and tackle or compound system

Identify the type of pulley

• Fixed

• Moveable

• Block and Tackle or pulley system

Identify the type of pulley.

• Block and Tackle or Compound System

• Fixed

• Moveable

Which of the following is an example of a pulley?

• flag pole

• see saw

• jump rope

A fixed pulley does not reduce the force needed to lift an object. What, then, is the advantage of using a fixed pulley?

• A fixed pulley reduces the force.

• A fixed pulley changes the direction of the force.

• A fixed pulley does not have any advantages.

A movable pulley ...

• has more force required than the load.

• is a block and tackle.

• can move freely up and down.

• consists only of rope.

Tags

NGSS.MS-ETS1-1

NGSS.MS-ETS1-2