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Worksheets

Conduction, Induction & Friction

Total questions: 20

Worksheet time: 2hrs 40mins

Name
Class
Date
1.
An electron is near two opposite charged sheets of metal.  The electron is _____  the positive sheet and ____ the negative sheet.
a)
attracted to / repelled by
b)
attracted to / attracted to
c)
repelled by / attracted to
d)
repelled by / repelled by
2.

If a negatively charged rod touches a conductor, the conductor will be charged by what method?

a)

Friction

b)

Conduction

c)

Induction

d)

Convection

3.

Two storm clouds rub against each other giving one cloud a positive charge and one a negative charge. This is an example of charging by

a)

Conduction

b)

Convection

c)

Friction

d)

Induction

4.
Only the __ move to create unbalanced charges.
a)
Neutrons
b)
Protons
c)
Electrons
d)
Static Electricity
5.

When atoms lose electrons, they become __ charged ions.

a)

Positively

b)

Neutral

c)

Negatively

d)

Shock

6.
Materials through which electrons move easily__.
a)
insulator
b)
conductor
7.

Charge can be temporary in ___

a)
conduction
b)
induction
8.

Your arm hair raising as you approach a television is an example of charging by induction

a)

true

b)

false

9.

Your hair sticking up after removing your cap is an example of charging by induction.

a)

True

b)

False

10.

What is this an example of?

a)

Heat

b)

Friction

c)

Gravity

d)

Induction

11.

If a negatively charged rod touches a conductor, the conductor will be charged by what method?

a)

Friction

b)

Conduction

c)

Induction

d)

Convection

12.
What method of static charging is shown in this picture
a)
Polarization
b)
Friction
c)
Induction
d)
Conduction
13.
If you rub a glass rod with a piece of silk, the rod becomes positively charged. This means that
a)
friction destroyed electrons in the rod.
b)
the silk has become negatively charged.
c)
protons have moved to the rod.
d)
glass attracts more protons.
14.
Charging by Friction results in two objects with the same charge.
a)
True
b)
False
15.

What happens when you touch a metal doorknob after rubbing your shoes on the carpet?

a)

The doorknob sends a burst of electric current into your body

b)

Millions of electrons go from your finger into the doorknob

c)

The doorknob sends millions of electrons into your finger

d)

Your finger becomes negatively charged

16.

The negatively charged balloon is brought near, not touching, the two cans. What happens?

a)

The negative charges in Can B move towards the balloon

b)

The negative charges in Can A move away from the balloon

c)

The positive charges in Can B move towards the balloon

d)

The positive charges in Can A move away from the balloon

17.

Two neutral conducting pop cans are touching each other. A negatively charged balloon is brought near Can X as shown below. Which of the following occur as the balloon approaches Can X?

a)

The electrons are transferred or move from the balloon to can X to make it negatively charged

b)

Can X becomes positively charged because it loses electrons

c)

Can X becomes positively charged because the electrons are repelled and move to Can Y.

d)

The protons from the balloon move to Can X to make it positively charged.

18.

A neutral metal sphere is touched by a positively charged metal rod. During the process, protons are transferred from the positively charged rod to the sphere and the sphere now has a _________________.

a)

positive charge

b)

negative charge

c)

has no charge; it remains neutral

d)

nonsense! this is not what happens!

19.

Consider the conduction charging shown.

a)

Electrons move from the charge metal bar and into the sphere staying clumped together

b)

Protons move from the bar into the sphere.

c)

Electrons move from the charged metal bar into the sphere and evenly distribute themselves.

d)

Protons move from the sphere into the negatively charged bar.

20.
Two electrically neutral metal spheres, A and B, on insulating stands are placed in contact with each other. A negatively charged rod is brought near, but does not touch the spheres, as shown in the diagram below. How are the spheres now charged?
a)
A is positive and B is positive.
b)
A is negative and B is positive.
c)
A is positive and B is negative.
d)
A is negative and B is negative.