Science revision/workbook answers. Jamie 9.1

Revision Electricity

Voltage energy require to push electrons “electrical pressure”

E.g. single cell

Batters – series of cell

Double “AA” batteries

12v/24v car battery

High resistance low conductor

E.g. rubber

Low resistance high conductor 

V=IR Ohm’s law

(v) Volts Unite for measuring quantity

Amperes (A) Measuring current

Ohms (Omega sign…)

Switch on means complete circuit

How to break the circuit

Cut the wire

Broken light bulb

Take away the battery

Energy and electricity

P.G. 128

1) Battery

2) Ammeter

3) Current meter

4) Stays the same

5) Stored

6) Light

P.G. 131

Summary questions

1)

a) Potential energy

b) Kinetic energy

P.G. 133

Summary questions

1)

a) Electrical energy

2) After you have used a battery it would have less voltage which will have a less energy and push. If you have bran new battery the voltage of the energy would be great and they great the voltage is the greater the push is.

3) It carries electrical energy.

P.G. 135

1) Generator

2) Uranium

3) Cannot draw on computer

p.g. 139

1) a) cell and bulb

b)