A force is a push or a pull. Forces can make objects move, slow down, change direction or change shape.

A lever is a simple mechanism or machine which is useful for lifting things.

The effort is the force needed to do a job.

The pivot is the fixed point where a lever turns.

How levers can help us

Science

Introduction to gravity

Pushes and pulls

Friction: plan

Friction: do and review

Air resistance: plan

Air resistance: do and review

Water resistance: plan

Water resistance: do and review

How pulleys can help us

How gears can help us

Simple machines

Design and development of machines

In this Forces and simple machines unit, pupils learn that air resistance, water resistance and friction push back against moving objects. In this Forces unit, pupils will build on this knowledge to accurately describe and explain the actions of forces in a range of situations.

In the Simple forces including magnets unit, pupils learnt to compare how things move on different surfaces. In this Forces including simple machines unit, pupils will build on this knowledge to identify the effects of air resistance, water resistance and friction, that act between moving surfaces

This unit covers the effects of gravity, air resistance, water resistance, and friction on objects. It explores how mechanisms like levers, pulleys, and gears magnify forces. Emphasis is on taking precise measurements, recording complex data, and presenting findings.

Forces including simple machines

Physical activity and equipment requiring safe use

A __________ is a simple mechanism or machine which is useful for lifting or moving things. A seesaw is an example of one of these.

A lever allows a smaller force to have a __________ effect.

When you use a lever, the object you are lifting or moving is called ...

When you use a lever, the force you apply to make an object move is called...

The point along a lever on which it turns is called the {{}}.

Look at the position of the pivot in these diagrams. In which one would the least effort be needed to lift the load?

Which of the following is not caused by a force?

Which type of force do you use when you close scissors to cut paper?

Which of the following is a type of friction force? 

Exit Quiz