Hand drill

Gears 

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.

Imagine the large gear on the left is the driver gear. What is another name for the small gear in the middle?

A canal lock is an example of a rack and pinion mechanism. It uses a gear to change rotary motion to {{}} motion on a rack.

Increasing the size of the driven gear, increases the output speed.

Decreasing the size of the driven gear, increases the output speed.

Increasing the size of driver gear, increases the output speed.

Decreasing the size of driver gear, increases the output speed.

Which statement is correct? Driver gear (left), driven gear (right).

Bevel gears transmit rotary motion through __________ degrees.

raising the heavy table on a pillar drill

motion backwards and forwards in a straight line

Match the description to the type of motion:

It completes a full turn more quickly than the smaller spanner.

It completes a full turn more slowly than the smaller spanner.

It has further to travel than the smaller spanner to complete a full turn.

It has less distance to travel than the smaller spanner to complete a full turn.

Imagine both spanners are moving at the same speed. Which statements are correct about the larger spanner on the right?

What do you use on a bike to support your speed on different terrains?

Decreasing the size of the driven pulley wheel (right) in comparison to the driver pulley wheel (left) has what effect on the output:

A resistance encountered when two surfaces rub together.

A material used to reduce wear on surfaces.