Fourth quarter review sheet with answers

Fourth quarter review sheet with answers - Name: _ Class: _...

Info iconThis preview shows pages 1–3. Sign up to view the full content.

View Full Document Right Arrow Icon
Name: ________________________ Class: ___________________ Date: __________ ID: A 1 Forth quarter review Multiple Choice Identify the letter of the choice that best completes the statement or answers the question. ____ 1. The source of all magnetism is a. moving electric charges. b. ferromagnetic materials. c. tiny domains of aligned atoms. d. tiny pieces of iron. e. none of the above ____ 2. Moving electric charges will interact with a. an electric field. b. a magnetic field. c. both A and B d. none of the above ____ 3. If the north pole of one magnet is brought near the south pole of another magnet, the poles will a. repel each other. b. attract each other. c. not interact with each other at all. ____ 4. If you break a bar magnet in half, each half a. becomes a bar magnet with two poles. b. becomes unmagnetized. c. contains one magnetic pole. ____ 5. Permanent magnets can be made by a. placing a piece of iron near a strong electromagnet. b. placing a piece of iron in a strong magnetic field. c. stroking material containing iron with a magnet. d. all of the above e. none of the above ____ 6. In order to make an electromagnet, you need a a. battery, a nail, and a magnet. b. battery, some wire, and a nail. c. loop of wire, contacts, and a battery. d. magnet, a nail, and some wires. e. none of the above ____ 7. The intensity of cosmic rays bombarding Earth's surface is largest at the a. equator. b. mid-latitudes. c. poles. ____ 8. Changing the magnetic field intensity in a closed loop of wires induces a. current. b. voltage. c. both current and voltage. d. neither current nor voltage.
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Name: ________________________ ID: A 2 ____ 9. A magnet is moved in and out of a coil of wire connected to a high-resistance voltmeter. If the number of coils doubles, the induced voltage a. is the same. b. doubles. c. quadruples. d. halves. e. none of the above ____ 10. The magnetic field strength inside a current-carrying coil will be greater if the coil encloses a a. vacuum. b. iron rod. c. wooden rod. d. glass rod. e. none of the above ____ 11. Most commercial generators are driven by a. wind. b. falling water. c. steam. d. rain. ____ 12. In an electromagnetic wave, the electric and magnetic fields are _____ to each other and _____ to the direction of wave motion. a. opposite, parallel b. at right angles, perpendicular c. parallel, at right angles d. at right angles, parallel ____ 13. If the primary coil of a transformer were connected to a DC power source, the transformer would operate a. the same as always. b. at very low efficiency. c. only while being connected or disconnected. d. only if the output were also DC voltage. e. none of the above ____ 14. A step-up transformer a. doesn't change the voltage at all. b.
Background image of page 2
Image of page 3
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 11/18/2010 for the course CPHY 101 taught by Professor Jay during the Fall '10 term at University of Massachusetts Boston.

Page1 / 10

Fourth quarter review sheet with answers - Name: _ Class: _...

This preview shows document pages 1 - 3. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online