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Electric Potential & Electric Potential Energy

Total questions: 22

Worksheet time: 13mins

Name
Class
Date
1.
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.
2.

Electric potential ____________ as distance increases.

a)

Increases

b)

Decreases

c)

Remains Constant

d)

Is 0

3.

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

a)

0

b)

negative infinity

c)

positive infinity

d)

200

4.

The SI unit for electric potential is the ___________.

a)

Volen

b)

Vespa

c)

Volt

d)

Valspar

5.

The direction of electric field lines shows the

a)

direction of the force on a test positive charge.

b)

size of the field.

c)

strength of the field.

d)

all of the above

6.

Inside a hollow charged spherical conductor, the potential

a)

Varies directly as the distance from the centre

b)

Varies inversely as the distance from the centre

c)

Varies inversely as the square of the distance from the centre

d)

Is constant

7.

A hollow metal sphere of radius 5 cm is charged so that the potential on its surface is 10 V. The potential at the centre of the sphere is

a)

0 V

b)

10 V

c)

Same as at point 5 cm away from the surface

d)

Same as at point 25 cm away from the surface

8.

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

9.

Angle between equipotential surface and lines of force is

a)

0

b)

180

c)

90

d)

45

10.

When work is done on a positive test charge by an external force to move it from one location to another, potential energy _________ (increases, decreases) and electric potential _________ (increases, decreases).

a)

increases, increases

b)

increases, decreases

c)

decreases, increases

d)

decreases, decreases

11.

Is work done on the positive charge to move it from point A to point B?

a)

Yes

b)

No

12.

Electric potential energy is greatest at point...

a)

A

b)

B

13.

Electric Potential (voltage) is greatest at point...

a)

A

b)

B

14.

Is work done on the positive charge to move it from point A to point B?

a)

Yes

b)

No

15.

Electric potential energy is greatest at point...

a)

A

b)

B

16.

Electric potential (voltage) is greatest at point...

a)

A

b)

B

17.

Moving an electron within an electric field would change the ____ the electron.

a)

mass of

b)

amount of charge on

c)

potential energy of

18.

Work must be done on a + charge to move it against (i.e., in the opposite direction of) an electric field.

a)

True

b)

False

19.

As a + charge moves in the same direction as an electric field, it gains electric potential.

a)

True

b)

False

20.

A student generates an equipotential map of a point charge and notices the electric potential decreases the further away from the charge. From only this information the student can determine which of the following?

a)

The charge is positive

b)

The charge is negative

c)

The magnitude of the charge

d)

Nothing, more information is required

21.

Which of the following is a correct expression for the potential energy of a charge placed near another charge?

a)

qEdqEd

b)

qEqE

c)

qVqV

d)

14πϵ0 Qr\frac{1}{4\pi\epsilon_0}\ \frac{Q}{r}

22.

These form a surface where the electric potential is constant everywhere on the surface.

a)

Gaussian surface

b)

Flux surface

c)

Equipotential lines

d)

Equatorial lines