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

Question 1

static electricity

Answer 1

a build up of electric charges on an object

Question 2

current electricity

Answer 2

a flow of electric charges

Question 3

generator

Answer 3

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

Question 4

circuit

Answer 4

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

Question 5

series circuit

Answer 5

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

Question 6

parallel circuit

Answer 6

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

Question 7

Voltage

Answer 7

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

Question 8

Voltage is measured in…

Answer 8

volts; smb V

Question 9

Current

Answer 9

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

Question 10

Current is measured in…

Answer 10

amperes or amps; smb A

Question 11

Resistance

Answer 11

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

Question 12

Resistance is measured in…

Answer 12

ohms; smb omega
Ω
(“horseshoe shape”)

Question 13

Electricity is the flow of tiny particles called…

Answer 13

electrons

Question 14

Electrons are part of…

Answer 14

atoms

Question 15

The word circuit means…

Answer 15

go around

Question 16

A circuit is a… … around which electricity flows.

Answer 16

closed path

Question 17

Once the flow of electrons is going… can be done

Answer 17

work

Question 18

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

Answer 18

completing the circuit

Question 19

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

Answer 19

heart

Question 20

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

Answer 20

conductors

Question 21

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

Answer 21

insulators

Question 22

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

Answer 22

resistors

Question 23

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

Answer 23

Voltage

Question 24

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

Answer 24

Amps

Question 25

… is the term for work performed by electricity

Answer 25

Watts

Question 26

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

Answer 26

Chemical
Potential
Kinetic
Mechanical
Electrical
Heat
Light

Question 27

Bonus: Can you get something for nothing?

Answer 27

NO!