Electricity Flashcards

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1
Q

What is static electricity

A

An in balance of electric charge on the surface of an object

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2
Q

A positive object has more ____ than _____

A

More protons than electrons

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3
Q

A negative object has more ____ than ___

A

More electrons than protons

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4
Q

How many electrons and protons does a neutral object have

A

The same amount of protons and electrons

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5
Q

What happens between positive and negative objects

A

They attract

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6
Q

What happens between two negative objects

A

They repel

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7
Q

What happens between two positive objects

A

They repel

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8
Q

What happens between a positive and a neutral object

A

They attract

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9
Q

What happens between a negative and neutral object

A

The attract

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10
Q

What is electric discharge

A

When the build up of excess charge on one object is transferred to another object

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11
Q

What are the Three main methods of charging an object

A

Static, induction, conduction

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12
Q

What are two types of electric discharge

A

Sparking & grounding

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13
Q

What is sparking

A

When the charge “jumps” not by touching

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14
Q

What is grounding

A

When the charge is discharged to a conductor that can take the excess charge into the ground

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15
Q

What is current electricity

A

The controlled flow of electrons through a conductor

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16
Q

What is a circuit

A

A continuous path in which electrons can flow

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17
Q

4 essential parts of a circuit

A
  • cell
  • load
  • switch
  • wire
18
Q

What is current

A

The measure of Electron flow going past a given point in the circuit

19
Q

What is current measured in

A

Amperes

20
Q

What is voltage

A

The amount of energy electrons are carrying in a circuit

21
Q

What is voltage also called

A

Potential difference

22
Q

What is voltage measured in

A

Volts

23
Q

What is resistance

A

How much a device slows down the flow of current

24
Q

Conductors have ____ resistance

Current travels ____

A

Low resistance

Current travels easily

25
Q

Insulators have ____ resistance

Current travels ___

A

High resistance

Current travels with difficulty

26
Q

What is resistance measured in

A

Ohms

27
Q

What is safer sparking or grounding

A

Grounding

28
Q

What type of electric discharge is lightening

A

Grounding

29
Q

How does a load change electric energy

A

Can turn it into heat or light energy

30
Q

How are voltage, resistance, and current related

A

Ohms law

31
Q

How many paths are there in current

A

One

32
Q

How many Paths are there in series

A

Multiple

33
Q

What happens if a light goes out in a series circuit

A

They all go out

34
Q

What happens if a light goes out in a parallel circuit

A

The rest stay on

35
Q

What happens to voltage in parallel

A

Stays the same

36
Q

What happens to voltage in series

A

Divided by number of load

37
Q

What happens to current in series

A

Stays the same

38
Q

What happens to current parallel

A

Add the paths together

39
Q

What happens to resistance in series

A

Add paths together

40
Q

What happens to resistance in parallel

A

More paths = less resistance