Electricity Exam Paper Qs

Question 1

A wire which is wrapped around an iron nail is attached to a battery. What happens when an electric current flows through the wire

Answer 1

The nail becomes magnetic

Question 2

There is a wire wrapped around the nail attached to a battery how could the magnetic effect be demonstrated

Answer 2

Has an effect on compass/Will pick up small pieces of iron

Question 3

Describe the relationship between voltage and current shown by the graph in 2013 exam paper

Answer 3

Proportional

Question 4

The plastic comb has been used to comb hair and it now picks up small plastic balls. Why?

Answer 4

While the comb was used to be brushed it got charged amd now attracts plastic balls

Question 5

The boy in the photo is touching a charged globe that is a high voltage. He is insulated from the earth. What property of electric charge causes thr boy’s hair to stand pn end and apart?

Answer 5

Like charges repel

Question 6

Name a material suitable from which the bar and the paper clips should he made

Answer 6

Iron, nickel, steel, cobalt

Question 7

Name two advantages to the consumer of having a kWh meter

Answer 7

Review cost of electricity on a daily basis

Locate what part of the house cost most or least