Elctricity Flashcards

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0
Q

What is a short circuit

A

Electricity will always take the easiest path so, if you put a knife in the toaster while it is still running, electricity will go through the knife. It will take a shortcut.

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1
Q

What is current electricity

A

Electricity that flows or moves through wires

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2
Q

What is a complete circuit

A

It is when electricity flows from the battery through the wires into the lightbulb lighting it up, making an output

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3
Q

What is an incomplete circuit

A

The spot for electricity to flow had been broken. The electricity will stop and the bulb will not light.

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4
Q

What is a closed circuit

A

It is a complete circuit except switch has been added.

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5
Q

What is an open circuit

A

The switch is open and the circuit is incomplete. The electricity will stop and the bulb will not light

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6
Q

What is a series circuit

A

If there are two or more lights hooked together, one after the other like a train, they are in a series. The main problem in a series circuit is that if one of the bulbs burns out the circuit will be incomplete and the whole circuit will not work

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7
Q

What a parallel circuit

A

Parallel circuits have all the bulbs connected directly to the power source all the bulbs will turn on at the same time. Also, if one of the bulbs goes out, the others will stay lit.

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8
Q

Name 2 safety devices used at home

A

A breaker, and a fuse

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9
Q

What is electricity

A

A type of energy that uses electrons to flow

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10
Q

Name 2 types of electricity

A

Static, Current

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11
Q

How can you tell if static electricity is working

A

Here a crackle, see a spark, items will stick together

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12
Q

How does electricity work through a light bulb

A

First, electrons flow in the metal at the bottom of the bulb. Then, electrons flow through the filament which glows. Electrical energy is changed into light energy. Next, electricity flows out through the metal bump at the bottom of the bulb.

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13
Q

Name every type of circuit

A

Short complete, incomplete, closed, open, series, parallel, lemon, Penny

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14
Q

What is a circuit

A

An I’m broken pathway that electricity follows. It needs wires, a power source and an output

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15
Q

How could you show static electricity

A

Dragging shoes on the carpet, items sticking together, computer/TV screen fuzzing

16
Q

What are three common example of insulators

A

Rubber (used to make gloves for electrical workers), Glass (used to make insulators on the tops of electrical poles), plastic (used to insulate wires in most appliances)

17
Q

What is the difference between insulators and conductors

A

The atoms in an insulator hold their electrons very tightly and do not permit electricity to flow. The atoms in conductors let their electrons move freely and allow electricity to flow.

18
Q

What are three common examples of good conductors

A

Copper (used in most wiring), silver (used in special wiring), water with salt in it

19
Q

How does static electricity work

A

The friction made when two different objects are rubbed together creates static Electricity

20
Q

What is one example of static electricity in the working

A

First, rubbing causes the balloon to steal electrons from your hair. The balloon has a buildup of electrons and have a negative charge your hair lost electrons and so it has a positive charge. Since opposites attract, the negatively charged balloon will stick to the wall. Lastly, if there are enough electrons on the balloon they will try and jump to the wall. They might also make a small spark.

21
Q

How is electricity made.

A

electricity is made any time small particles called electrons move from one place to another

22
Q

How many electrons can fit in the tip of a ballpoint pen.

A

1 billion

23
Q

What is a breaker

A

A breaker is a device that prevents circuits in houses and buildings from being overloaded

24
Q

What is a fuse

A

The fuse is a safety device that prevents appliances from being ruined when circuits are overloaded.