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WorksheetsElectric Field Review
Total questions: 20
Worksheet time: 10mins
If you walk into a region of space and suddenly feel a force, the space is said to contain a
charged object
force field
large charge
black hole
An electric field has
direction
magnitude
Both A and B
Every proton in the universe is surrounded by its own
gravitational field
electric field
both A and B
none of the above
The direction of electric field lines shows the
direction of the force on a test positive charge.
size of the field.
strength of the field.
all of the above
Suppose a hollow metal sphere has a large negative charge on it. The electric field strength inside the sphere is
large and positive.
zero.
large and negative.
weak and positive.
Suppose you touch a negatively charged object to a metal sphere so that electrons move from the charged object onto the sphere. After the charged object is moved far away, electrons on the sphere will be
distributed in small bunches over the sphere's surface.
distributed evenly over the sphere's surface.
pulled off the sphere along with the charged object.
located at the place where the charged object was.
all of the above
Electrical potential energy is the energy a charged object has because of its
momentum
location
mass
motion
volume
A small, positively charged object near a positively charged sphere is moved closer to the sphere. The electrical potential energy of the small object
stays the same.
decreases
increases
If two negative charges are held close together and then released, the charges will
accelerate toward each other.
accelerate away from each other.
not move
move at a constant speed away from each other.
Electric potential is defined as
electrical potential energy of a charge multiplied by the quantity of the charge.
electrical potential energy of a charge divided by the quantity of the charge.
electrical potential energy.
gravitational potential.
voltage.
A volt is a unit of
charge
electric potential
energy
work
current
A beam of electrons accelerates from the back of your TV set to the screen. In order to make the beam hit the top of the screen, charged parallel plates create a vertical electric field. How will the top plate be charged?
positively
negativey
Electrical potential energy per charge is electric
force
power
potential
work
A 2-C charge experiences a force of 40 N when put at a certain location in space. The electric field at that location is
2 N/C
20 N/C
40 N/C
80 N/C
The electric field in a certain region of space is 30 N/C. What is the force on a 2-C charge placed in that region?
15 N
2 N
30 N
60 N
When a charge is placed in a region of space where there is an electric field, the charge will experience a force.
TRUE
FALSE
The direction of lines of force shows how large a force will be on a charge placed in an electric field.
TRUE
FALSE
Even though a car may be struck by lightning, people inside the car will normally be safe.
TRUE
FALSE
The energy a charge possesses by virtue of its location is called electrical potential.
TRUE
FALSE
The unit of electric potential energy is the joule.
TRUE
FALSE
