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Quiz 1

Total questions: 25

Worksheet time: 37mins

Name
Class
Date
1.
Electric charges that are alike _______ each other.
a)
Attract
b)
Repel
2.
What is the SI unit used to measure force? 
a)
pounds 
b)
grams 
c)
newtons 
d)
friction
3.
The SI unit of charge is
a)
the ampere
b)
the newton
c)
the coulomb
d)
the joule
4.

What is the end result of charging by contact?

a)

Both object have the same charge, so they will attract one another

b)

Both object have the same charge, so they will repel one another

c)

Both object have the opposite charge, so they will attract one another

d)

Both object have the opposite charge, so they will repel one another

5.

What does it mean when the electric field lines are close together?

a)

the field is positive

b)

the field is negative

c)

The field is strong

d)

the field is weak

6.

When the distance between two charges is halved, the electrical force between the charges

a)

quadruples

b)

reduces to one fourth

c)

halves

d)

doubles

7.

which is the field for opposite charges

a)
b)
c)
d)
8.
What direction are the electric field lines around an electron?
a)
towards the charge
b)
away from the charge
9.

If a unit positive charge is taken from one point to another over an equipotential surface, then

a)

Work is done on the charge

b)

Work is done by the charge

c)

Work done is constant

d)

No work is done

10.

Angle between equipotential surface and lines of force is

a)

0

b)

180

c)

90

d)

45

11.
As a proton moves in the direction the electric field lines...
a)
it is moving from low potential to high potential and gaining electric potential energy.
b)
it is moving from low potential to high potential and losing electric potential energy.
c)
it is moving from high potential to low potential and gaining electric potential energy.
d)
it is moving from high potential to low potential and losing electric potential energy.
12.

Electric potential ____________ as distance increases.

a)

Increases

b)

Decreases

c)

Remains Constant

d)

Is 0

13.

The SI unit for electric potential is the ___________.

a)

Volen

b)

Vespa

c)

Volt

d)

Valspar

14.

The magnitude of electric potential is ______ at an infinite distance.

a)

0

b)

negative infinity

c)

positive infinity

d)

200

15.
What is voltage?
a)
The amount of electric potential energy per one coulomb of charge
b)
The amount of 1 coulomb of charge per unit of potential energy
c)
The number of volts per coulomb
d)
The amount of electric potential energy per volt
16.
QA and QB are two charges creating an electric field. Based on the electric field lines, we can conclude
a)
QA and QB are both positive
b)
QA and QB are both negative
c)
QA is positive and QB is negative
d)
QA is negative and QB is positive
17.

Figure shows the electric lines of force emerging from a charged body. If the electric field at A and B are EA and EB respectively and if the displacement between A and B is r then

a)

EA > EB

b)

EA < EB

c)

EA = EB / r

d)

EA = EB / r2

18.

The unit of electric field is not equivalent to

a)

N/C

b)

J/C

c)

V/m

d)

J/Coulomb.meter

19.
In the diagram below, P is a point near a negatively charged sphere. Which direction best represents the direction of the electric field at point P?
a)
Right
b)
Left
c)
Up 
d)
Down
20.
Which of the following statements is false about electric field lines
a)
electric field lines cannot cross
b)
electric field lines point away from positive charge
c)
electric field lines are always straight lines
d)
electric field lines show how a proton would move in an electric field
21.
Consider the electric field lines shown in the diagram below. From the diagram, it is apparent that object A is ____ and object B is ____.
a)
+,+
b)
+,-
c)
-,+
d)
-,-
22.
Which of the following is a true statement about the electric field between the two plates?
a)
The field is attractive between the plates and uniform in strength
b)
The field is repulsive between the plates and uniform in strength
c)
The field is attractive between the plates and strongest near the positive
d)
The field is repulsive between the plates and strongest near the positive
23.
The electrical force between charges is strongest when the charges are
a)
close together
b)
far apart
c)
 the electric force is constant everywhere.
d)
there is no pattern
24.

Which description best describes electric potential difference?

a)

The amount of energy that a charge has.

b)

The amount of energy needed to move a charge from 1 place to another.

c)

The amount of charge that an electron has.

d)

The amount of brightness you observe when looking at a lightbulb.

25.

Electric potential difference is measured in

a)

newtons (N)

b)

amps (A)

c)

volts (V)

d)

joules (J)

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