WorksheetsGeneral Physics 2 (Quiz 1)
Total questions: 15
Worksheet time: 8mins
A conducting sphere has a net charge of –6.4 × 10–17C. What is the approximate number of excess electrons on the sphere?
100
200
300
400
Complete the following statement: When an ebonite rod is rubbed with animal fur, the rod becomes negatively charged as ___________.
positive charges are transferred from the fur to the rod.
negative charges are transferred from the rod to the fur.
negative charges are created on the surface of the rod.
negative charges are transferred from the fur to the rod.
Which one of the following statements is true concerning the magnitude of the electric field at a point in space?
It is a measure of the total charge on the object.
It is a measure of the electric force per unit charge on a test charge.
It is a measure of the electric force per unit mass on a test charge.
It is a measure of the ratio of the charge on an object to its mass.
An electron traveling horizontally enters a region where a uniform electric field is directed upward. What is the direction of the force exerted on the electron once it has entered the field?
to the left
to the right
upward
downward
Which one of the following statements is true concerning the strength of the electric field between two oppositely charged parallel plates?
It is zero midway between the plates.
It is constant between the plates except near the edges.
It is a maximum near the positively charged plate.
It is a maximum near the negatively charged plate.
Which of the following is TRUE about electric charge?
It can be lost.
It can be destroyed.
It can be transferred from atom to atom.
It is created from a chemical reaction.
Which of the following is the most effective conductor?
iron
water
wood
oil
What is the direction of the electric field at the test point on the -x-axis, 50 cm from the charge q = +5.00nC which is located at the origin?
eastward
westward
northward
southward
An electron traveling horizontally from North to South enters a region where a uniform electric field is directed downward. What is the direction of the electric force exerted on the electron once it has entered the field?
to the east
to the west
upward
downward
Of the following quantities, the one that is not a scalar in character is ______
charge
electric field
energy
electric potential
How is the direction of the electric field lines related to the equipotential surface?
perpendicular
parallel
depends on the sign of the charge
undetermined
What is the energy per unit charge?
current
frequency
power
voltage
If a neutral atom has 22 protons in its nucleus, the number of surrounding electrons is
less than 22
22
more than 22
unknown
A difference between Newton’s law of gravity and Coulomb’s law is that only one of these ________.
is a fundamental physical law.
uses a proportionality constant.
invokes the inverse-square law.
involves repulsive as well as attractive forces.
When a negatively charged balloon is placed against a non-conducting wall, positive charges in the wall are __________.
attracted to the balloon.
repelled from the balloon.
too bound to negative charges in the wall to have any effect.
neutralized.
