Understanding Pulleys

Which of the following is an example of a pulley in everyday life?

• A seesaw

• A flagpole

• A ramp

• A screw

A single fixed pulley changes the ______ of the force applied.

• Magnitude

• Direction

• Color

• Weight

Pulleys can be combined to form a ______ system.

• Lever

• Gear

• Block and tackle

• Screw

What are the two main parts of a pulley?

• Rope and lever

• Rope and wheel with grooves

• Wheel and axle

• Lever and fulcrum

A _______ uses a pulley to lift heavy materials at a construction site.

• Window blind

• Crane

• Flagpole

• Elevator

A pulley helps in ______.

• Cooking food

• Lifting heavy objects

• Painting pictures

• Writing stories

What is a movable pulley?

• A pulley that is fixed in place

• A pulley that moves with the load

• A pulley that cannot be used with ropes

• A pulley that requires more effort to use.

A pulley is like a ______ that helps you lift things without using all your muscles.

• burden

• friend

• enemy

• tool

What is it called when you use more than one pulley together?

• Single pulley

• Combination of pulleys

• Pair of pulleys

• Group of pulleys

How does a pulley work?

• By making things invisible

• By using magic

• By using a rope and a wheel to help lift things

• By changing colors