Electric devices and circuit diagrams

Energy transfer when coal is burnt in a coal power station

• Kinetic --> heat
• Heat --> chemical
• Chemical --> Heat
• Electric --> Light

Tags

NGSS.MS-PS1-2

Gives off large amounts of Carbon Dioxide

• Solar
• Wind
• Coal
• Nuclear

Tags

NGSS.HS-ESS2-6

What is potential energy?

• stored energy of position
• energy of movement

Tags

NGSS.MS-PS3-2

What is kinetic energy?

• stored energy of position
• energy of movement

Tags

NGSS.MS-PS3-1

A machine that uses a magnet to make a current of electricity

• circuit
• static electricity
• generator
• magnetic

This is the circuit symbol of a

• resistor

• battery

• fuse

• switch

• an earth wire

Resistance in wire depends on how thick it is, how long it is and what it is made of.

• true
• false

The fuse in a circuit melts when:

• An appliance isn't earthed
• Too much current flows
• Too much voltage flows

A double insulated appliance does not need:

• A fuse
• A earth wire
• A neutral wire

a switch that automatically opens if the current in the circuit is too high

• parallel circuit
• circuit breaker
• series circuit
• load