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Electrostatic

Total questions: 37

Worksheet time: 29mins

Name
Class
Date
1.

Like charges will ...

a)

attract each other.

b)

repel each other.

2.

When a balloon is ________ on clothes, the electrostatic charge is produced.

a)

attracted

b)

contacted

c)

rubbed

3.

Electron has .... charge.

a)

Positive

b)

Negative

c)

Neutral

4.

Unlike charges will ...

a)

attract each other.

b)

repel each other.

5.

Which graph best represents the relationship between the magnitude of the electrostatic force and the distance between two oppositely charged particles?

a)
b)
c)
d)
6.

Two positively charged masses are separated by a distance, r. Which statement best describes the gravitational and electrostatic forces between the two masses?

a)

The gravitational force is attractive and the electrostatic force is

repulsive.

b)

The gravitational force is repulsive and the electrostatic force is

attractive.

c)

Both forces are attractive.

d)

Both forces are repulsive.

7.

In the diagram above, two positively charged spheres, A and B, of masses mA and mB are located a distance d apart. Which diagram best represents the directions of the gravitational force, Fg, and the electrostatic force, Fe, acting on sphere A due to the mass and charge of sphere B? [Vectors are not drawn to scale.]

a)
b)
c)
d)
8.
An electric field has
a)
 direction. 
b)
magnitude. 
c)
Both A and B
9.
Every proton in the universe is surrounded by its own 
a)
a. gravitational field. 
b)
b. electric field. 
c)
c. both A and B 
d)
d. none of the above
10.
The direction of electric field lines shows the 
a)
direction of the force on a test positive charge.  
b)
size of the field.
c)
c. strength of the field. 
d)
d. all of the above
11.
Suppose a hollow metal sphere has a large negative charge on it. The electric field strength inside the sphere is 
a)
a. large and positive.
b)
 b. zero. 
c)
c. weak and negative. 
d)
d. weak and positive. 
12.
Electrical potential energy is the energy a charged object has because of its 
a)
momentum. 
b)
location. 
c)
mass.  
d)
motion.
13.
A small, positively charged object near a positively charged sphere is moved closer to the sphere. The electrical potential energy of the small object 
a)
stays the same. 
b)
decreases. .
c)
increases
14.
If two negative charges are held close together and then released, the charges will 
a)
accelerate toward each other.
b)
 accelerate away from each other. 
c)
not move.
d)
move at a constant speed away from each other
15.
Electric potential is defined as potential. 
a)
electrical potential energy of a charge multiplied by the quantity of the charge.
b)
 electrical potential energy of a charge divided by the quantity of the charge. 
c)
electrical potential energy. 
d)
gravitational 
16.
A volt is a unit of 
a)
charge. .
b)
electric potential. 
c)
energy. 
d)
work.
17.
Electrostatic force F is directly proportional to:
a)
r^2 (distance squared)
b)
q1
c)
q2
d)
both q1 and q2
18.
When distance increases, electrostatic force ____________; we call this relationship ____________ proportional
a)
decreases;directly
b)
decreases;inversely
c)
increases;inversely
d)
increases;directly
19.
What variable do Coulombs represent?
a)
Electrostatic Charge
b)
Force
c)
Distance
d)
Mass
20.

Recap:

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

Coulomb’s law also states that the force between two charged objects will __________ when the distance between objects increases.

a)

increase; increase

b)

increase; decrease

c)

decrease; increase

d)

decrease; decrease

21.
The Electric Force is strongest when charges are...
a)
close together
b)
far apart
c)
the electric force is constant everywhere
22.

Which two particles are attracted to each other?

a)

Two neutrons

b)

A proton and an electron

c)

Two protons

d)

An electron and a neutron

23.

A repulsive force exists between which two particles?

a)

Two neutrons

b)

An electron and a neutron

c)

An electron and a proton

d)

Two protons

24.

As two oppositely charged particles approach each other, what happens to the electrical force between them?

a)

The attractive force increases

b)

The magnitude of the electric force decreases

c)

The repulsive force increases

d)

The magnitude of their charges increases

25.

Coulomb's law is used to calculate

a)

Magnetic dipole moment

b)

Force between two charges

c)

Energy of a conductor

d)

Force due to gravity

26.

Coulomb's law says that the force between any two charges depends

a)

directly on the size of the charges

b)

inversely on the square of the distance between the charges

c)

both are correct

27.

The study of electric charges at rest.

a)

electrostatics

b)

nuclear physics

c)

kinematics

d)

mechanics

28.

Subatomic particle having a positive electrical charge.

a)

neutron

b)

electron

c)

proton

d)

lepton

29.

Coulomb

a)

unit of charge

b)

unit of change

c)

charge on a neutron

30.

Like charges

a)

attract

b)

repel

c)

ignore each other

31.
Two like charges
a)
 neutralize each other.
b)
repel each other. 
c)
must be neutrons. 
d)
attract each other.
32.
What direction are the electric field lines around an electron?
a)
towards the charge
b)
away from the charge
33.
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 
34.
What variable is a Coulomb the unit for?
a)
Charge
b)
Force
c)
Distance
d)
Mass
35.
When distance increases, electrostatic force ____________; we call this relationship ____________ proportional
a)
decreases;directly
b)
decreases;inversely
c)
increases;inversely
d)
increases;directly
36.

Coulomb's Law says if charges increase

a)

force decreases (squared)

b)

force increases

c)

you better divide

d)

phone a friend

37.

Coulomb's law also says if distance increases, then force

a)

decreases

b)

disapears

c)

destroyed in a heartbeat

d)

doubles

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