SCIENCE YEAR 4 : MACHINES

A lever consist of these things.

• Load

• Fulcrum

• Effort

• Machine

Which of the following are the benefits of using a simple machine?

• Stylish.

• Saves time.

• Uses latest technology which are expensive.

• Uses less energy.

The simple machine shown is a __________________.

• Wheel and axle

• Screw

• Lever

• Pulley

Which of the following is the best to lift an object high on to an object?

• Wheel and axle

• Screw

• Lever

• Pulley

If you have a heavy object which is to be moved daily, which of the following will help save time and energy?

• Wheel and axle

• Screw

• Lever

• Pulley

It has one pointed end and often used for cutting.

• Wedge

• Screw

• Pulley

• Lever

Which of the following simple machine is not found in a wheel barrow?

• Screw

• Wedge

• Wheel and axle

• Lever

Which of the following is NOT an example of a complex machine?

• bicycle

• stairs

• lawn mower

• scissors

How many basic types of simple machines are there?

• 7

• 6

• 8

• 9

Can you name this simple machine?

• wheel and axle

• lever

• pulley

• wedge