Motors

Question 1

Relay switches….

Answer 1

Safely turn on a high potential difference circuit using a low potential difference circuit

Question 2

If a current and a magnet occur together, ___________ is created and this is called ___________

Answer 2

Movement and the MOTOR EFFECT

Question 3

The current must be _______________ to the magnetic field or the circuit won’t work

Answer 3

Perpendicular

Question 4

To reverse the movement, you can:

Answer 4

1. Reverse current direction ( swap wires)

2. Reverse magnetic field direction (swap magnet poles)

Question 5

How to increase the strength of a motor:

Answer 5

1. Coil the metal
2. Use a stronger magnet
3. Increase the magnetic flux density
4. Increase the length of the rod