Review for First Long Test in General Physics 2 ('23-'24)

What is a valid surface where Gauss's law can be applied?

• Any closed surface

• A spherical surface

• A highly symmetrical surface

• A surface with a charge inside it

A particle moves along an equipotential surface. Which statement is FALSE?

• Its kinetic energy remains the same.

• Its potential energy remains the same.

• Its path is parallel to the electric field.

• Its total mechanical energy remains the same.

What happens to the magnitude of the electric flux on a surface when the angle between the electric field and the area vector increases from 0° to 180°?

• It increases.

• It decreases.

• It increases then decreases.

• It decreases then increases.

Which describes that the force between charged particles follow the inverse-square law?

• Ohm's law

• Gauss's law

• Newton's law

• Coulomb's law

A proton moves from a region with lower potential to a region with higher potential. What happens to its kinetic energy?

• It increases.

• It decreases.

• It remains the same.

• More information is needed.

In a certain region, a uniform electric field is present where it is directed to the right. What happens to the electric potential as you go from right to left?

• It increases.

• It decreases.

• It remains the same.

• It increases then decreases.

Which charging process involves the use of nonmetallic objects?

• Friction

• Induction

• Conduction

• All charging processes involve some nonmetallic objects.

Imagine a horizontal table whose net charge is negative. What is the direction of the electric field due to it below it?

• Upward

• Downward

• Leftward

• Rightward

A proton moves from point A to point B such that its electric potential energy increases. Which statement is TRUE regarding the electric potential on A and B?

• The electric potential at A is equal to the electric potential at B.

• The electric potential at A is less than the electric potential at B.

• The electric potential at A is greater than the electric potential at B.

• There is no relationship between the electric potential at A and the electric potential at B.

Volts is a measure of what quantity?

• Electric flux

• Electric potential

• Electric potential energy

• Work done by the electric field