2nd Mock -

Question 1

Why does the Battery in a Phone need Recharging? (1)

Answer 1

The Store of Chemical Energy in the Battery has Reduced.

Question 2

Suggest why some Ceiling Lights DO NOT have an Earth Wire. (2)

Answer 2

• They’re not made of Metal.

- There is a Little/No Chance of an Electric Shock.

Question 3

Describe how the Movement of Copper Particles in the Wire changes when Copper is Melted. (2)

Answer 3

• Particles Vibrate about a Fixed Position in Regular Arrangement.
• The Particles Change to being Free to move Around.