PHYS 1402 Review

Question 1

What are the main topics in 1402?

Answer 1

-Electrostatics
-Electric circuits
-Magnetism
-Simple Harmonic Motion
-Waves

Question 2

What are two types of charge?

Answer 2

Positive and negative

Question 3

What causes an electric force?

Answer 3

An electric charge

Question 4

What are the different electric forces?

Answer 4

Attraction and Repulsion

Question 5

What does Coulomb’s law represent?

Answer 5

It represents the force between two charges

Question 6

What is the Coulomb’s law equation?

Answer 6

F=(kQ1Q2)/r^2

Question 7

Where does the charge reside on a conductor?

Answer 7

All the charge resides on the surface with no net charge inside

Question 8

What is an electric field?

Answer 8

It is a field that exists around every charge

Question 9

What happens when two charges are close?

Answer 9

The electric field from the first charge exerts an electric force on the second charge

Question 10

What does electric field represent?

Answer 10

Represents the amount of electric force per charge

Question 11

What is the equation for electric field?

Answer 11

E=F/Q

Question 12

What is the electric potential?

Answer 12

It is the amount of energy needed to move a charge from a point to a new location against an electric field

Question 13

What is the equation for electric potential due to a point charge?

Answer 13

V=(kq)/r

Question 14

What is the equation for electric potential due to electric potential energy?

Answer 14

V=U/q

Question 15

What is the definition for current?

Answer 15

The rate at which electric charge flows through an electric circuit at a certain point

Question 16

What are capacitors?

Answer 16

Devices for storing charge

Question 17

What are resistors?

Answer 17

Electrical components that dissipate energy

Question 18

What kind of charges do magnetic fields surround?

Answer 18

Moving charges

Question 19

What also has a magnetic field?

Answer 19

Any material with permanent magnetism is surrounded by a magnetic field

Question 20

How does a magnetic field exert a force?

Answer 20

Exerts a magnetic force on a moving charge
-but not when the charge is moving in the same direction as the magnetic field

Question 21

What is magnetic induction?

Answer 21

It is the production of an induced electromotive force (EMF) across a conducting loop caused by a change in magnetic flux

Question 22

What is magnetic flux?

Answer 22

It is the total magnetic field which passes through a given area

Question 23

What does Faraday’s Law give you?

Answer 23

The magnitude of emf

Question 24

What does Lenz’s Law give you?

Answer 24

The direction of the induced current

Question 25

In what direction does the current/emf induced by a changing magnetic flux point towards?

Answer 25

The direction is pointed to whatever opposes the change in flux

Question 26

What is a simple harmonic motion?

Answer 26

Is a type of motion in which the restoring force on the moving object is directly proportional to the magnitude of the object’s displacement

Question 27

How does the restoring force act?

Answer 27

Acts towards the object’s equilibrium position

Question 28

What can waves be thought as?

Answer 28

As singular harmonic motion happening at different, connected points simultaneously

Question 29

What are longitudinal waves?

Answer 29

The motion of the wave happens in the same direction as the direction of the wavelength

Question 30

What are transverse waves?

Answer 30

The motion of the waves happen perpendicularly to the direction of the wavelength