Levers and linkages

Design and technology

In this unit pupils will develop core principles knowledge with an explicit focus on exam technique.

Physical activity and equipment requiring safe use

Use of equipment that may require supervision for safety, e.g. scissors in KS1, needles, paint, knives, cooking.

Levers have three changeable elements. Match the element to it's definition:

Match the products to the order of lever:

transform one type of motion into another motion

Linkages are a set of levers joined together to:

move in opposite directions to each other

In a reverse motion linkage, the input and output...

increase the distance between fulcrum and effort

How can mechanical advantage (MA) be increased in a first class lever?

If the input motion in a treadle linkage is rotary, what is the output motion?

Match the product to the type of output motion:

forces are balanced and there is no movement

To open a tin of paint or varnish more easily, what could you do?

A work horse is a product that uses linkages. Why do you think it may use linkages?

large penguin would move up away from the floor

the small penguins would move up away from the floor

the large penguin would move towards the floor

the small penguins would move down towards the floor

Look at the picture. What would happen if one of the small penguins moved off the seesaw.