Complex Machines

How many simple machines are there?

• 8

• 2

• 6

• 5

A machine that uses a combination of two or more simple machines are called ____________.

What do we use a machine for?

• To dream about nice things.

• To create new worlds.

• To make a job easier.

• To start a job.

Tags

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Which of the following is NOT a complex machine?

• bicycle

• ramp

• can opener

• wheel barrow

• Simple machine

• Complex machine

Tags

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Which statement is correct?

• Inclined plane: enables us to moves the objects from one level to a higher level

• Gear: Separates, cuts, holds, and stops objects

• Screw: Helps to lift up and moves objects easily

• Pulley: Moves and rotates objects

Tags

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Wheelbarrow is a simple machine or complex machine?

• Simple Machine

• Complex Machine

Choose all the complex machines

• Plane

• Scissors

• Electric drill

• Wheelbarrow

• Watch

What is Rube Goldberg known for?

• Creating crazy, complicated cartoons

• Being a plumber

• Creating the light bulb

Rube Goldberg was _.

• an engineer

• a writer

• an artist

• all of the above