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Electricity Flashcards

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1
Q

What is force?

A

Cause of motion or change

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2
Q

What is an insulator?

A

Poor conductor of electricity

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3
Q

What is an electric discharge?

A

A release of electric energy

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4
Q

What is a circuit?

A

Complete path of electric current

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5
Q

What is a battery?

A
  • a group of cells connected to furnish the current
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6
Q

What is a voltmeter and what are volts?

A
  • instrument that measures volts

- volts= potential difference

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7
Q

What is energy?

A

Usable power

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8
Q

What is rehostat?

A
  • current resistor
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9
Q

What is piezo-electric?

A

-electricity due to pressure

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10
Q

What is a dry and secondary cell? Check!!!

A
  • dry cell= electrochemical cells that convert stored chemical energy
  • secondary cell= electric cell that can be recharged
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11
Q

What is an alternative current?

A

-electric current that reverses what direction it flows

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12
Q

What is a service panel? Check!!!!!

A

-distribution centre divides electric power into subsidiary circuits

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13
Q

What is a short circuit?

A
  • low points of resistence in points of the circuit
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14
Q

What is cogeneration?

A
  • using wasted heat to create electricity in an idustrial proccess
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15
Q

What is electrical force? Check!!!

A

Attraction or repulsive interaction between charges

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16
Q

What is a conductor?

A
  • material that allows current to flow freely
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17
Q

What is neutralized mean?

A

-making something neutral

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18
Q

What is a source and a switch?

A
  • source= carries charges across current flow

- switch= making or breaking connections in an electric circuit

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19
Q

What is a galvanometer and amps? Check both!!

A

Instrument that measures electric current, and base unit of electric current

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20
Q

What is resistance?

A
  • resisting something
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21
Q

What is a thermistor and thermocouple?

A

Resistor used from a semiconductor whos resistance relys on temp and a thermocouple measures the temp of the potential differnec between junction of wires

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22
Q

What is a photovoltaic cell? Check!!

A

Electric device that uses light to create electricity by this effect the photovoltaic effect

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23
Q

What is an electrode?

A
  • conductor where electricity enters or leaves a subject
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24
Q

Batteries?

A

Group of batteries

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25
Q

What is direct current?

A
  • current flowing in one direction
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26
Q

What is a fuse? Check!!

A

Electric safety device that provides over current protection

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27
Q

What is GFCI? Check!!!

A

Quickly breaks a circuit when there is an imbalance between passing current

28
Q

What is nuclear fission? Check!!!

A

A reaction where the nucleus splits releasing energy

29
Q

What is static electricity?

A

Electricity that consists of motionless charges

30
Q

What is a semiconductor?

A
  • something between a conductor and insulator
31
Q

What is grounding? Check!!

A

Connecting electric power systems to the ground for safety reasons

32
Q

What is a load? Check!!!

A

Component that consumes electricity

33
Q

Resistor?

A
  • something that resistes something
34
Q

What is an ammeter and ohms?

A

-measures electric current and unit of electric resistance

35
Q

What is a multimeter, varistor, and thermopile?

A

Instrument that measures properties of circuit, resistor whose resistance depends on voltage,
A bunch of thermomcouples to multiply effect

36
Q

Electrochemical cell check!!!!, and an electrolyte?

A
  • device capable of generating electric energy from chemical reactions or using electric energy to cause chemical reactions
  • substance when fused or dissolved becomes a ionic conductor
37
Q

What is a generator?

A
  • turns mechanical energy= electric energy
38
Q

What is a transformer?

A

Converts into variations of current and voltage in a secondary circuit

39
Q

What is a branch circuit? Check!!!

A

Part i

Electric circuit extending beyond circuit breakers or fuse

40
Q

Non- renewable?

A
  • unable to be replaced or refurnished
41
Q

Nuclear fusion? Check!!

A

Atomic nuclei combine to create a heavier nucleus and releases energy

42
Q

What is charge separation? Check!!!

A

Positive and negative charges are not together but separated in a molecule

43
Q

What is a superconductor?

A

A substance with no electric resistance

44
Q

What are ionizers? Check!!!

A

High voltage to give charge to particles that move through ionizer or to molecules

45
Q

What is a lamp?

A
  • something containing a light bulb to create light
46
Q

Ohmeter?

A

Instrument to measure resistance in ohms

47
Q

Power?

A

Supply energy

48
Q

Variable resistor? Check!!!

A

Resistor where the Resistance value can be adjusted

49
Q

What is piezo effect? Check!!!!!

A
  • ability for something to generate electric charge when applied mechanical stress
50
Q

What is a wet cell? Check!!!!

A

Original types of rechargeable battery uses liquid

51
Q

Primary cell?

A

Cell that converts chemical energy to electric energy

52
Q

Electromagnet?

A

-core of magnetic material in which current passes through to magnetize it

53
Q

What is a circuit breaker?

A

Switch that turns off overloaded circuit

54
Q

Binary code? Check!!!

A

Series off electric pulses to represent number and characters and operations

55
Q

What is renewable resource?check!!!

A

-energy renewed from ocean wind solar hydropower etc

56
Q

Thermal pollution?

A

discharge of heated water to natural water at a harmful temp

57
Q

How to positive,negative and neutral charges interact?

A

+ plus neutral= attract
- plus neutral= attract
+ plus -= attract
The rest repel

58
Q

What are the 3 laws of charges?

A

Unlike charges attract

Like charges repel
Charged objects attract uncharged objects

59
Q

How to ground something why is it important?

A

Connect to earth with grounding wire protects things and people from the danger of high voltage

60
Q

Drawing circuit?

A

Create square with angles, ,are sure conductor lines do not cross add the symbols with equal size

61
Q

units for volts, amps, ohms, power, energy

A 
volts= V
amps= A
Ohms=lulu lemon sign 
power= watt
energy= joules
62
Q

What is ohms law and how do you apply it? Check!!

A

finding the resistance of something from its current and voltage
resistance= voltage divided by current

63
Q

how are house wired? What are the safety mechanisms? ASK?

A

-two hot wires, one neutral
circuit breaker= cuts power
fuse= metallic conductor that heats up when there is too much current
ground wire= to keep charge neutral

64
Q

What happens when you trip a breaker?

A

turns off and must be manually turned on in order for electricity to flow through again

65
Q

Common safety rules in a household? ASK?

A
  • do not plug in too many things
  • never work on or clean appliances that are still plugged in
  • replace worn electric cords
  • never use appliances too close to sink or bath tub
66
Q

Check this dexk before pats

A

Ss

Science (5 decks)

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