Mechanisms and Machines Quiz for 4th Grade

What is the main purpose of a machine?

• To make work harder
• To help people do work easier
• To create more problems
• To stop people from working

How many types of simple machines are there?

• 4
• 5
• 6
• 7

Which of these is NOT a simple machine?

• Wedge
• Lever
• Computer
• Pulley

What makes a complex machine different from a simple machine?

• It's bigger
• It uses more than one simple machine
• It's more expensive
• It's made of metal

What is a pulley?

• A type of rope
• A wheel with a rope around it
• A type of screw
• A flat surface

What does a wedge help you do?

• Sit down
• Push things apart
• Ride a bicycle
• Write with a pencil

What is a force?

• A type of machine
• A push or pull
• A type of wheel
• A complicated tool

What is a mechanism?

• A complete machine
• A part of a machine that changes motion
• A type of tool
• A complicated device

What happens when two gears connect?

• They always turn the same way
• They always turn in opposite directions
• They stop moving
• They create more force

What is an inclined plane?

• A flat surface
• A type of wheel
• A ramp
• A lever