Electricity Flashcards Preview

Astrology & Geology > Electricity > Flashcards

Flashcards in Electricity Deck (39):
1

What is electrons ability to move?

Energy

2

What is the force exerted by an electron on anything that has an electric charge?

Electric Field

3

What is the force that pushes electrons?

Electrostatic force

4

Opposite charges attract or repel?

Attract

5

Like charges attract or repel?

Repel

6

What is it when a material has an excess of a lack of electrons?

Static electricity

7

What is the movement of electrons to relieve a separation in charge?

Static discharge

8

What moves electrons through wire?

Electrostatic force

9

What is material that allows electrons to move through it easily?

Conductor

10

In a conductor are electrons loosely held or tightly held?

Loosely

11

What are examples of conductors?

Metals like copper and silver

12

What is material that doesn't allow electrons to move through it easily?

Insulator

13

In a insulator are electrons loosely held or tightly held?

Tightly

14

What are examples of insulators?

Plastic, wood, rubber, and glass

15

What happens as water/electrons move?

They can do work

16

What is the amount of potential energy (pressure) stored in the electrons?

Voltage Potential Difference

17

What does a large separation of charge do?

It creates high voltage

18

What is the "pump" for electrons?

A battery

19

What is a closed path through which electrons can flow?

Circuit

20

What is a circuit that is complete, where electrons can flow?

Closed circuit

21

What is a circuit where the continuity has been broken by an interruption in the path for electrons to flow?

Open circuit

22

What is an electric circuit offering little or no resistance to the flow of electrons?

Short circuit

23

Why is a short circuit dangerous?

The high currents encountered can cause large amounts of heat energy to be released

24

What is a source of electricity?

A battery

25

What will open or close the circuit?

A switch

26

What converts electrical energy into light?

A lamp

27

What is a series circuit?

A current travels in a single path

28

What stops the flow of current in a series circuit?

A break

29

What happens to a series circuit as lights are added?

It gets dimmer

30

What is a parallel circuit?

A current travels in multiple paths

31

Which path do parallel circuit usually take?

The path of least resistance

32

What is the measure of the opposition to the flow of electrons?

Resistance

33

What is the uniform flow of electrons through a circuit?

Current

34

What is Ohms Law?

Voltage = Current x Resistance

35

The amount of work to be done in a certain amount of time

Power

36

What is the symbol and unit of measurement for current?

1. I
2. Ampere - AMP

37

What is the symbol and unit of measurement for voltage?

1. V
2. Volts

38

What is the symbol and unit of measurement for resistance?

1. R
2. Ohm

39

What is the symbol and unit of measurement for power?

1. W
2. Watts