Simple machines

Simple machines

Grade 3

Multiple Choice

Are you going to follow rules?

• yes

• no

Multiple Choice

What are simple machines?

• many components

• few components

Multiple Select

Simple machines:

• lever

• pulley

• blender

• toaster

• wheel - axle

Multiple Choice

What is the wheel?

• circular shape

• triangular shape

• rectangular shape

Multiple Choice

Wheel rotates around an:

• axle

• fulcrum

Multiple Choice

Wheels and _____ are simple machines that help things move.

• gears

• levers

• pulleys

Multiple Choice

What is a gear?

• racing cars

• moving objects

• teeth around the edge of wheels

Multiple Select

A ramp is used to______.

• lower objects

• rotate things

• raise objects

Multiple Choice

Ramp also known as:

• wheel and axle

• lever

• inclined plane

Multiple Select

Ramps work by allowing heavy objects slide _____ or _____ along a smooth surface.

• everywhere

• uphill

• nowhere

• downhill

Multiple Choice

Along a gentle incline we need _____ effort.

• more

• less

Multiple Choice

We need ____ effort to move an object along a steep incline.

• more

• less

Multiple Choice

What is the meaning of load?

• the ramp

• the axle

• the inclined plane

• the object

Multiple Choice

What is a lever?

• an inclined plane

• a wheel and an axle

• long bar that moves up and down over a pivot.

Multiple Select

Mark the parts of a lever:

• bar

• wheel

• load

• pivot

• ramp

Multiple Choice

It takes lots of effort to move a load when we are further from the pivot.

• True

• False

Multiple Choice

If we get closer to the pivot, it will require more effort to move the load.

• True

• False

Open Ended

Write what do you need to make a pulley:

Multiple Choice

A pulley is made up of a wheel and a lever.

• True

• False

Multiple Select

Mark what forms a pulley:

• wheel

• load

• ramp

• rope

• effort

Multiple Select

You put the _____ on one end of the rope and apply ____ to the other end to raise of lower the load.

• groove

• load

• effort

• gear

Multiple Choice

A pulley is made up of a wheel and a lever.

• True

• False

Multiple Choice

Do you think rope would hold the weight of cable cars?

• Yes

• No

Multiple Choice

Cable cars use pulleys but instead of rope, they use:

• cable

• ribbon

• popcorn

Open Ended

Can you name other pulley system machines?

Multiple Choice

Groove is:

• the angle of a ramp

• a complete turn around and axle

• a channel or indentation

Multiple Choice

Incline is:

• the angle of a ramp

• a channel

• a complete turn around an axle

Multiple Choice

Rotate is:

• a channel

• the angle of a ramp

• a complete turn around an axle

Poll

Which is your favourite simple machine?

• ramp

• pulley

• lever

• wheel

Open Ended

Now, let's go to work in Classkick! Are you ready?