Unit 4: Magnetism and Electromagnetic Induction
Physics 2 · Unit 4 · Paper 2

Magnetism and Electromagnetic Induction unit test

A test on this unit alone, marked as a percentage and a letter grade — for the test your class is actually sitting, rather than for May. Answer everything, then submit once: seeing the answer to question 3 before attempting question 4 makes the final percentage meaningless.

Paper 1Paper 2Paper 3
Each paper is built from this unit’s 22 terms and is the same for everyone, so a teacher can assign “Unit 4, Paper 2” and every student sits the identical test. Multiple choice is marked objectively; the written sections you mark yourself against the model answer and rubric.
Suggested time 31 min 28 points0/17 attempted
1

Charged particle in a magnetic field

2

Force on a current-carrying wire

3

Two parallel wires

4

Right-hand rule for force

5

Force on a moving charge

6

Lenz's law

7

Why magnetic monopoles do not appear

8

Flux through a rotating loop

9

Magnetic force does no work

10

Domains and ferromagnetism

11

Magnetic flux

12

Why power is transmitted at high voltage

Short answer 1. Define or explain: Transformers

3 pts

Short answer 2. Define or explain: Magnetic field of a wire

3 pts

Short answer 3. Define or explain: Motor principle

3 pts

Short answer 4. Define or explain: Motional EMF

3 pts

Free response

4 pts

A long straight wire carries a steady current I to the right. A rectangular conducting loop is placed below the wire and is pulled downward at a constant velocity v.

Determine the direction of the induced current in the loop. Justify your answer using Lenz's Law.

As the loop moves further away, what happens to the magnitude of the induced current? Explain.