Question

electricity exam
part a: matching

1. the particle that is moved in electrical interactions
2. an object with no net charge
3. opposition to the flow of electrons
4. the flow of electrons through a wire
5. electrons flow easily through these types of materials

a. resistance
b. electron
c. conductor
d. current
e. neutral

1. type of electricity in most homes
2. the flow of electrons from an area of high to low concentration of electrons
3. a 9 - volt battery is an example of this
4. area around electrons that exerts a force on anything else electrically charged
5. net accumulation of charges or imbalance of charges on an object

a. static electricity
b. dry cell
c. potential difference
d. parallel circuit
e. electric field

1. closed path through which electrons flow
2. electrons do not flow easily through these materials
3. will not allow an electrical system to overheat
4. the rate at which electrical energy is converted to another form or does work
5. unit for potential difference

a. electrical power
b. voltage
c. circuit
d. fuse
e. insulator
part b
analysis:
1.) explain why the van de graaff generator causes the womens hair stand up like it is in the picture.

Explanation:

Part A: Matching

1. C. Electron
2. D. Neutral
3. A. Resistance
4. B. Conductor
5. E. Current
6. D. Parallel Circuit
7. C. Potential Difference
8. B. Dry Cell
9. E. Electric Field
10. A. Static Electricity
11. C. Circuit
12. E. Insulator
13. D. Fuse
14. A. Electrical Power
15. B. Voltage

Part B: Analysis

The Van de Graaff generator transfers charge to the woman’s body (via contact with the dome). Her hair strands acquire the same type of charge. Since like charges repel each other, the strands push away from one another, causing them to stand up.

Answer:

The Van de Graaff generator gives the woman's hair strands the same charge; like charges repel, making the hair stand up.