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CHP 3 - ELECTRICITY > 3.1) Energy in Circuits > Flashcards

3.1) Energy in Circuits Flashcards

1
Q

What is an electric circuit?

A

An electric circuit is a closed complete circular path that electricity flows through

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2
Q

What do electric circuits convert electricity into? Give examples

A

Electricity is converted into other forms of energy such:
- Light
- Heat
- Sound
- Kinetic energy

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3
Q

What is the purpose of the battery in a circuit?

A

The role of a battery (or cell) in an electric circuit is to supply energy to the circuit

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4
Q

What do the components do in a circuit?

A

Converts electrical energy into some other form

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5
Q

Examples of components?

A
  • Resistor
  • Bulb
  • Heating elements and motors
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6
Q

What is the purpose of the wires in a circuit?

A

The wires connect the components to the energy source

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7
Q

What is the purpose of the switch in a circuit?

A

The switch controls the flow of energy

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8
Q

What are fuses and safety switches used for?

A

They are used to break the circuit in n emergency (SAFETY)

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9
Q

What is current?

A

Current is the rate of movement of charge in a circuit

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10
Q

What is current made up of?

A

Electrons

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11
Q

What device is used to measure electric current?

A

Ammeter

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12
Q

What unit of measurement is current measured in?

A

Ampere (A), or amps

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13
Q

What is the symbol for current?

A

I

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14
Q

What is voltage?

A

Voltage is a measure of the amount of energy either supplied by the source of used by the light globe

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15
Q

What happens to the lightbulbs when a higher-voltage battery is used?

A

The lightbulbs glow more brightly

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16
Q

What is potential difference?

A

The difference in potential energy between two points in a circuit

17
Q

What are conductors in circuits? Give an example

A

Materials that allow charge to flow more easily. Example: copper

18
Q

What are insulators in circuits? Give an example

A

Materials that resist the flow of charge. Example: rubber

19
Q

What is the symbol for resistance?

A

R

20
Q

What is the unit of measurement for resistance?

A

Ohm (Ω)

21
Q

What is resistance?

A

Resistance is the measurement of how difficult it is for current to flow through a material

CHP 3 - ELECTRICITY (3 decks)

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