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Question 1

lightning

Answer 1

negative charge moving towards a positive charge

Question 2

steps of lightning

Answer 2

proton said+ electrons rearrange in the cloud dude to too many electrons.
the electrons move towards a positive charge through induction

Question 3

conductors + insulators

Answer 3

materials that allow electrons to move (metal and copper)

materials that don’t allow electrons to move easily

Question 4

semiconductors

Answer 4

can either transfer or not transfer electrons like silicon

Question 5

grounding

Answer 5

connecting acharged ibject to earths surface. providing a path for charges to travel to or from the ground

Question 6

laws of attraction

Answer 6

opposites attract

Question 7

neutral atoms

Answer 7

positive and negative net charge are balanced no net charge

Question 8

cation

Answer 8

postitive net charge

Question 9

anion

Answer 9

negative net charge

Question 10

electron affinity

Answer 10

tendency of a substance to hold on to electrons.

Question 11

voltage

Answer 11

measured in volts

electrical pressure

Question 12

current

Answer 12

measured in amps

flow of electricity

Question 13

resistance

Answer 13

measured in ohms

opposition to the flow of a current

Question 14

low resistance m

Answer 14

short wire
low resistance
thick wire

Question 15

high resistance

Answer 15

long wire
high temperature
thin wire

Question 16

how voltage, current and resistance affect eachother

Answer 16

ohms law

Question 17

ohms law

Answer 17

V= IR

Question 18

dry cell

Answer 18

the zinc container contains a moist chemical paste sureoundin a carbon rod suspended in middle

Question 19

wet cell

Answer 19

contains two connected plates made of different metals in a conduction fluid

Question 20

circuits

Answer 20

contains: connecting wire, lamp/load, battery, switch, resistor, ammeter, voltmeter

Question 21

energy consumption

Answer 21

unit = KWH
how much power the device uses x how long it’s on = consumption
1000watts = 1 kilowatt

Question 22

percent efficiency

Answer 22

efficiency= Ein/Eout x 100
energy out: device gives
energy in: device takes

Question 23

power costs

Answer 23

consumption x cost/kwh = total cost

Question 24

fossil fuels

Answer 24

• electrical energy produced from organic matter of pragmatism’s that lived millions of years ago
  ex: coal, oil, natural gas
• non renewable

Question 25

fossil fuels use

Answer 25

coffin fuels are burned to boil water, they are kept under pressure for the steam to reach a high temperature. the high pressure steam strikes and pushes the blades on a turbine

Question 26

wind

Answer 26

- energy produced by moving air | - renewable

Question 27

wind use

Answer 27

wind turbines using wind to turn their blades, which are connected to generators. faster air= more energy produced

Question 28

renewable energy source

Answer 28

energy source that will remain available and not run out

Question 29

non renewable energy source

Answer 29

energe source that has a limited amount of use

Question 30

static electric charge

Answer 30

charge that remains on the surface

Question 31

resistor

Answer 31

slows down current flows

Question 32

switch

Answer 32

means if interrupting or complete ling the circuit

Question 33

ammeter

Answer 33

measures current

Question 34

battery

Answer 34

composed of a chemical substance that can generate and can be used in a circuit

Question 35

current electricity

Answer 35

flowing very rapidly through a conductor. has voltage

Question 36

ampere

Answer 36

measure of how much electrical current is flowing

Question 37

voltmeter

Answer 37

measures voltage in a circuit

Question 38

volts

Answer 38

unit of voltage

Question 39

voltage

Answer 39

electrical pressure

Question 40

multimeter

Answer 40

device that slows you to read measurements of current, voltage

Question 41

electrical discharge

Answer 41

object releases electrons

Question 42

electrical charges

Answer 42

electrons and protons

Question 43

electric current

Answer 43

rate of flow of electrical charge

Question 44

electrode

Answer 44

conductors through which electricity enters or leaves the body

Question 45

electrolytes

Answer 45

a liquid or gel that contains ions

Question 46

fuse

Answer 46

device to shut of a electrical circuit when too much electrical current is flowing

Question 47

series circuit

Answer 47

components connected through one single path, sharing a voltage source

Question 48

parallel circuit

Answer 48

components connected along multiple paths so that the current can split up

Question 49

biomass

Answer 49

burning wares to drive heat engines. renewable. | waste decomposes to methane gas, which is burned to boil water, make steam and power turbines

Question 50

energy grid

Answer 50

``` power plants transmission lines substations power lines transformers electrical wiring and circuit box ```

Question 51

generators

Answer 51

magnets+motion+copper wire=electricity | -

Question 52

geothermal

Answer 52

energy produced by water heated from milton rock. water from earths core rises and produces steam

Question 53

hydroelectric

Answer 53

fast flowing water used to power turbine

Question 54

neuclear

Answer 54

produced by the chain reactions of atoms in heavy elements. atoms are spilt which releases an enormous amount of energy. this is used to produce steam

Question 55

kilowatt hour

Answer 55

unit of electric energy

Question 56

sustainable development

Answer 56

economic development done with destruction of natural resources

Question 57

transformer

Answer 57

static electrical device that transfers electrical energy between two or more circuits

Question 58

turbine

Answer 58

a machine used to produce continuous power