Electricity And Magnetism Study Guide With Answers di1e

Name __________________________________________

Date ______________

Electricity and Magnetism Study Guide Fill in the blanks

Vocabulary: 1. ____electric field___________ - The space in which an electric force acts 2. ____resistance_____________ - The measure of how much a material opposes the flow of current 3. ____static electricity_________ - The buildup of charges on an object 4. ____insulator______________ - An object that does not conduct electricity 5. ____series circuit____________- A circuit that has only one path that electricity can follow 6. ____parallel circuit__________- A circuit that has two or more paths that electricity can follow 7. ____electromagnet__________ - A temporary magnet made of wire wrapped around a core 8. ____conductor______________ - An object that allows electricity to flow

Science Concepts: 9. A ____electromagnet_______ is made by wrapping current-carrying wire around an iron core. 10.

___Negative__________ charges move easily through most electrical

conductors.

11.

An _______Electric Charge is a property of matter that causes objects

to attract or repel each other.

12.

_______Plastics_____________ are materials that make good insulators

of electricity. 13.

In a _____series circuit____the lights will become dimmer when

someone adds another light to an electrical circuit. 14.

In a ______series circuit_____________if one bulb burns out it will

cause all of the lights to fail in a circuit. 15.

Which of the following materials are needed to build an electromagnet?

Circle the needed materials: insulated wire, com, iron bar, batteries and holder, light bulbs, magnet

16.

What will happen if a com if it is close to an electromagnet? when

you close the switch the com needle will turn

Inquiry Skills: 17.

In a parallel circuit with three light bulbs, what would happen to the

middle light bulb if one of the other light bulbs was removed? Why?

The middle light bulb would remain lit. Parallel circuits provide more than one route for electric currents to through.

18.

List the advantages of using a parallel circuit in

a home or school.

18. If something blocks one path of the electrical current, the current can still flow through another path. Adding more bulbs to a parallel

circuit doesn’t affect the brightness of other bulbs in the circuit.

19.

In a series circuit what will happen if one piece

is removed? The light bulb will not light.

20.

List the materials needed to make an electric

circuit. A battery, electric wire, and a bulb are needed.

21.

Explain how the materials you listed above

work together to make a circuit work. The battery provides the energy to move the electric charge. The wire carries the electric charge to the bulb, which lights up when the current reaches it.

22.

Create an experiment testing whether or not

damp clothes can be electrically charged by rubbing them against each other. Make sure you include a test using dry clothes for comparison.

-Take damp clothes out of a washing machine and rub them together to see if they would have a charge. (They would not because charges cannot be rubbed off unless they were completely dry). -Take clothes out of the dryer. They would have static electricity because the rubbing of the clothes against each other in the dryer causes a buildup of charges in one place.