pulleys and gears fun for grade 4

Which of thefollwoing is a good definition for a pulley?

• a simple machine that uses a grooved rope to move a load

• a simple machine that uses a rod, fulcrum. load and effort to move things

• a simple machine that uses a rope, chain, or belt

What must a pulley have

• a rope

• chain

• string

• all the above

Which of the following is an example of a pulley?

• flag pole

• see saw

• jump rope

Identify the type of pulley

• fixed

• moveable

• compound (block and tackle)

Identify the type of pulley

• Fixed

• Moveable

• Compound(block and Tackle)

Tags

NGSS.MS-PS2-2

Identify the type of pulley

• Block and Tackle(compound)

• Fixed

• Moveable

What is a gear?

• A gear is a wheel with a grove on its edge.

• A gear is a wheel with teeth on its edge.

• A gear is a wheel which is heart shaped

• All of the above

A can opener is an example of a 

• pulley
• gear

Window blinds are an example of a...

• pulley
• gear

A clock has many...

• pulleys
• gears