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Electric Charge

The document discusses electrostatic charges and how a plastic rod gains charge when rubbed with a cloth. It asks questions about demonstrating the charge on the rod, the two types of charges that can be produced, and advantages and hazards of electrostatic charges in paint spraying.

Uploaded by

Ariyon Paul
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33 views9 pages

Electric Charge

The document discusses electrostatic charges and how a plastic rod gains charge when rubbed with a cloth. It asks questions about demonstrating the charge on the rod, the two types of charges that can be produced, and advantages and hazards of electrostatic charges in paint spraying.

Uploaded by

Ariyon Paul
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
Available Formats
Download as PDF, TXT or read online on Scribd
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2 When a plastic rod is rubbed with a cloth, the rod

gains charge.

NNNNNN

ENSINONEN

+--+-+--+- - + - ++ +6
+
WOW

(a) How could you show that the plastic rod gains
charge?
(1)

(b) Explain how the plastic rod gains charge when it is


rubbed.
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(c) There are two types of charge.


Describe how you could demonstrate this using
different insulating rods and a cloth.

In your answer, you should name any other equipment


you would use.
(3)

IIIIIIIIIIIIIIII
I
I IIIIIIIIIIIIIII

(Total for Question 2 = 6 marks)


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6
This question is about electrostatic charges. (a)
Complete the sentences using words from the box.

Each word may be used once, more than once or not at


all.

electrons
negative
neutral
neutrons
positive
protons

When a plastic rod is rubbed with a cloth, the plastic


rod gains

After the plastic rod has been rubbed with the cloth, the
plastic rod has a

charge.

(b) Electrostatic charges can be useful during paint


spraying.
(i) The droplets of paint are given the same charge as
they leave the sprayer.

Explain why this is an advantage.


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(ii) The droplets of paint are positively charged.

The object being painted is given a negative charge.

Explain why this is an advantage.


(c) Give one hazard caused by electrostatic charges
and state how the risk from this
hazard can be reduced.
(2)

(Total for Question 6 = 8 marks)


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