Conceptual Physics-Electricity Unit-Quiz 1 (Activities 1 and 2) Flashcards Preview

K 8th Grade > Conceptual Physics-Electricity Unit-Quiz 1 (Activities 1 and 2) > Flashcards

Flashcards in Conceptual Physics-Electricity Unit-Quiz 1 (Activities 1 and 2) Deck (27):
1

static electricity

a build up of electric charges on an object

2

current electricity

a flow of electric charges

3

generator

a device used to create electricity; it changes (chemical energy (food you ate)) mechanical energy (moving gears) into electric energy (electrons)

4

circuit

a closed path for electrons (electricity) to flow on/in

5

series circuit

a circuit where there is only one path that electrons (electricity) can follow; if one light goes out, all of them go out; lights get dimmer as you add devices

6

parallel circuit

circuite where there is more than one path for electrons (electricity) to follow; others stay on if one bulb goes out; brightness is constant no matter how many devices are attached; used in homes and buildings

7

Voltage

smb V; energy used to move electrons (energy per charge; "push"; can be used to run devices such as lights, fans, or gaming systems

8

Voltage is measured in...

volts; smb V

9

Current

smb I; flow of charges (electrons) through conductors; speed of charges (amount of charges going past a point per second)

10

Current is measured in...

amperes or amps; smb A

11

Resistance

smb R; opposition of a material to the flow of charges; something that slows current down

12

Resistance is measured in...

ohms; smb omega
Ω
("horseshoe shape")

13

Electricity is the flow of tiny particles called...

electrons

14

Electrons are part of...

atoms

15

The word circuit means...

go around

16

A circuit is a... ... around which electricity flows.

closed path

17

Once the flow of electrons is going... can be done

work

18

Touching the... and the... in a bumper car track will give you a shock because you are... .... ....

completing the circuit

19

Electricity from a wall outlet has enough energy to stop your...

heart

20

Materials that allow electrons to move easily from atom to atom are called...

conductors

21

materials that do not allow electrons to flow easily are called...

insulators

22

... are materials that have a resistance somewhere in between insulators and conductors.

resistors

23

... is the force or pressure of electricity (think water pressure)

Voltage

24

... is the amount of electricity (think amount of water in a hose at one moment)

Amps

25

... is the term for work performed by electricity

Watts

26

In the hand generator activity, what forms of energy appeared, and in what order

Chemical
Potential
Kinetic
Mechanical
Electrical
Heat
Light

27

Bonus: Can you get something for nothing?

NO!

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