P6 - Motoring

Question 1

What are the main uses of a motor around the house?

Answer 1

• in the car (windscreen wipers)
• in the garden (electric lawnmowers)
• in the kitchen (blenders, whisks and food processors)
• on the move (portable CD players)

Question 2

When does an electric motor turn faster?

Answer 2

• when the number of turns on the coil is increased
• the size of the current is increased
• the strength of magnetic field is increased

Question 3

What is the shape of the magnetic field around the wire?

Answer 3

Circular.