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Flashcards in Electricity Deck (38):
1

changing a _________ field can cause _______ charges to move in a wire.

magnetic, electric

2

__________ electric charge produces a magnetic field.

moving

3

This relationship exists because electric force and magnetic force are really part of the same force.

Electromagnetic Force

4

________ use an electromagnet to change _______ ______ into electrical energy

Generators, kinetic energy

5

In a generator electrical current is produced as the coil of _____ rotates between the poles of a permanent magnet.

wire

6

In a generator, as the coil rotates it _____ the direction of the _______ as it is repelled by the like charge of the magnet.

changes, current

7

In the US current is produced at a rate of ____ times per second

60

8

_______ current occurs in your outlets. This is the flipping of the coil in the generator that changes the direction of the current twice each cycle, ______ cycles per second (60 Heartz, Hz)

Alternating (AC), 60

9

Batteries use _______ current, it only travels in one direction.

direct (DC)

10

Most power plants work on _______ concepts

similar

11

In power plants, a _____moves and turns the coil in the generator converting ______ ______ to electrical current in the generator.

turbine, kinetic energy (KE)

12

_______ methods are used to make the turbine move.

different

13

most power plants work by _______ _______ to steam and the steam turns the turbine.

heating water

14

Six renewable resources are:

1. hydro
2. solar
3. geothermal
4. wind
5. tidal
6. biomass

15

The nucleus of an atom contains ______ with a _____ charge and ______ with a ______ charge

protons, positive
neutrons, neutral

16

______ are located outside the nucleus and are responsible for ____________

electrons, electricity

17

In an electrical charge electrons are _______

moving

18

Like charges _____ each other

repel

19

opposite charges ______ each other

attract

20

Electrical current is the movement of ________ or charges in a ______ direction

electrons, single

21

Electrical current is measured in _____

amperes

22

electrical current flows from _____ voltage to _____ voltage (force)

high, low

23

electrical current flows from the ______ side of the battery to ______

negative, positive

24

_________ allow electric current

conductors

25

________ don't allow current to flow well

insulators (resistors)

26

closed path that electric current follows

closed circuit

27

If any break in the circuit occurs electricity _______ flowing, called an ______ _______

stops, open circuit

28

a circuit contains these 3 things

1. a voltage source (battery)
2. wire (conductor)
3. load

29

2 types of circuits are

1. series
2. parallel

30

A chain of circuits in line is a _____ circuit

series

31

in a series circuit, if one goes out the others _____ ____

go out

32

in a series circuit there is ____ path for electricity to follow

one

33

circuits next to each other, side by side is a ______ circuit

parallel

34

in a parallel circuit, if one goes out the others ____ _____

stay working

35

in a parallel circuit there is _____ paths for electricity to follow

multiple

36

Running electricity through a magnet creates a ______ _______

magnetic field

37

In electromagnetism the coiled wire is called a ______

solenoid

38

In electromagnetism, the ______ current the stronger the magnet

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