MEDIUM
Upper Secondary: IGCSE
IMPORTANT
Earn 100

Copy and complete the table, by adding the name of the unit and the symbol for the unit for the two quantities.

Quantity

Unit Symbol for unit
Force    
Electric charge    

Important Questions on Static Electricity

MEDIUM
Upper Secondary: IGCSE
IMPORTANT
When a Perspex rod is rubbed on a woollen cloth, the rod acquires a negative electric charge. What type of electric charge does the cloth acquire?
MEDIUM
Upper Secondary: IGCSE
IMPORTANT
When a Perspex rod is rubbed on a woollen cloth, the rod acquires a negative electric charge. What can you say about the amounts of charge on the two charged items?
MEDIUM
Upper Secondary: IGCSE
IMPORTANT
When a Perspex rod is rubbed on a woollen cloth, the rod acquires a negative electric charge. If you had two Perspex rods charged up in this way, how could you show that they both have electric charges of the same sign?
HARD
Upper Secondary: IGCSE
IMPORTANT

If you rub a balloon on woollen clothing, the balloon gains a negative electrostatic charge. Use the idea of the movement of electrons to explain this.

HARD
Upper Secondary: IGCSE
IMPORTANT

If the balloon is held close to an uncharged scrap of paper, the paper and the balloon will attract each other. Use the idea of charging by induction to explain this.

MEDIUM
Upper Secondary: IGCSE
IMPORTANT

A girl has two metal bars, 1 and 2. When the girl holds one end of bar 1 near a magnet, she finds that it attracts both the N pole and the S pole of the magnet. What does this tell you about bar 1?

HARD
Upper Secondary: IGCSE
IMPORTANT

A girl has two metal bars, 1 and 2. When the girl holds one end of bar 2 near the magnet, it attracts the N pole of the magnet, but repels the S pole. What does this tell you about bar 2?

HARD
Upper Secondary: IGCSE
IMPORTANT

In an experiment, the girl uses two table-tennis balls A and B. Each is coated with a thin layer of conducting material. Ball A is mounted on an insulating stand and ball B is suspended from a thin nylon thread. The arrangement is shown in the diagram.

Question Image

Ball A is given a negative charge, and is slowly moved towards ball B until it touches. Predict what is seen to happen.