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7.1 Electric Charge

Total questions: 25

Worksheet time: 14mins

Name
Class
Date
1.

How will these charges interact?

a)

Repel

b)

Attract

c)

No interaction

2.

How will these charges interact?

a)

Repel

b)

Attract

c)

No interaction

3.

How will these charges interact?

a)

Repel

b)

Attract

c)

No interaction

4.

Which of the following can move from one atom to another?

a)

protons

b)

neutrons

c)

electrons

d)

the nucleus

5.

Protons have a ______ charge.

a)

positive

b)

negative

c)

neutral

6.

Neutrons have a ______ charge.

a)

positive

b)

negative

c)

neutral

7.

Electrons have a ______ charge.

a)

positive

b)

negative

c)

neutral

8.

A material through which electrons (and therefore charge) move easily.

a)

insulator

b)

conductor

c)

static electricity

d)

ions

9.

A material through which electrons (and therefore charge) do not move easily.

a)

insulator

b)

conductor

c)

static electricity

d)

ions

10.

Metal is an example of...

a)

an insulator

b)

a conductor

11.

I touched a negatively charged rod to a neutral object, and some negative charge was transferred to the object. This is an example of...

a)

charging by induction

b)

charging by polarization

c)

charging by contact

d)

not being smart - you should never do that

12.

I bring a positively charged rod near a neutral metal sphere, which causes the negative charge within the sphere to move toward the rod, and the positive charge to move away from the rod. This is an example of...

a)

charging by induction

b)

charging by polarization

c)

charging by contact

d)

charging by friction

13.

During a storm, convection currents cause a separation of charges in storm clouds, and then lightening strikes the ground due to...

a)

the force of the convection currents

b)

the attraction between negative and positive charges between the cloud and the ground

c)

the negative and positive charges in the cloud repelling each other

d)

the high potential energy in the cloud flowing to the low potential energy in the ground

14.
Which of the following is not a good conductor of electricity?
a)
copper
b)
silver
c)
Glass
d)
aluminum
15.
What is the name of this device that is used to detect charges?
a)
beaker
b)
electroscope
c)
van de graff generator
d)
chargometer
16.
The Law of Conservation of Charge states that:
a)
all atoms have more protons than electrons.
b)
only protons can be rubbed off of an atom.
c)
charge cannot be created or destroyed.
d)
charge cannot be transferred.
17.

__________ is the temporary buildup of electric charge within or on the surface of objects.

a)

attractive force

b)

static electricity

c)

repulsive force

d)

Coulomb's Law

18.

Static electricity happens because of __________.

a)

discharge

b)

math

c)

electrons

d)

friction

19.

When electrons built up on a surface attract, the flow of electrons towards each other creates __________ and you can get shocked.

a)

static discharge

b)

repulsive force

c)

fire

d)

light

20.

If one of the charges doubles, what happens to the force?

a)

it doubles

b)

it gets cut in half

c)

it quadruples

d)

it is cut by 1/4

21.
If the distance doubles, what happens to the force?
a)
Reduced by half
b)
Reduced by 1/4
c)
Stays the same
d)
Quadruples
22.

What is the force of attraction or repulsion between electrically charged objects?

a)

electric charge

b)

electric force

c)

electric field

d)

static electricity

23.
The Electric Force is strongest when charges are...
a)
close together
b)
far apart
c)
the electric force is constant everywhere
24.

According to Coulomb's Law, when the distance increases, the electrostatic force ____________.

a)

increases

b)

decreases

c)

remains unchanged

d)

has no relationship to distance

25.

Coulomb’s law states that the force between two charged objects will __________ when the magnitude (value) of the object’s charge increases.

a)

increase

b)

decrease

c)

stay the same

d)

first increase, then decrease