Static Electricity

Question 1

What is a build up of static caused by?

Answer 1

friction

Question 2

Cloth rubbing polythene rod?

Answer 2

-electrons move from cloth to rod

Question 3

Explain how rubbing an acetate rod with a cloth causes the rod and cloth to become charged

Answer 3

• friction
• transfers electrons
• cloth GAINS electrons becomes NEGATIVELY charged
• rod loses electrons become POSITIVELY charged

Question 4

What creates an electric field?

Answer 4

electric charges

Question 5

How are sparks caused?

Answer 5

• When there is a high pd between charged object and the earth
• causes strong electric field between charged object and earthed object
• electric field cause electrons In the air particles to be removed
• current flows through air creating spark