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Physical Science- Science Definitions > Electricity > Flashcards

Electricity Flashcards

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1
Q

Battery

A

Convert chemical energy to electrical energy

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2
Q

Ammeter

A

Measures current strength

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3
Q

Voltmeter

A

Measures potential difference

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4
Q

Resistor

A

Resists current flow

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5
Q

Lightbulb

A

Converts electrical energy to heat and light energy

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6
Q

Rheostat

A

a variable resistor

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7
Q

Switch

A

Breaks the circuit is open

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8
Q

Fuse

A

Protects circuit from excess current

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9
Q

Series circuit

A

One path to follow the electricity flows through each component

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10
Q

Parallel circuit

A

More than one path to follow electricity branches to go through components

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11
Q

To maintain a circuit you need…

A

And I’m broken loop through which the charge can flow and a source of electrical potential energy

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12
Q

Electricity

A

Flow of charged particles

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13
Q

Electric current

A

Current is the amount of charge passing a point per unit time

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14
Q

Current strength formula

A

I=Q/t

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15
Q

One ampere

A

The amount of current passes appointing a contractor when a charge of one coulomb flows for one second

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16
Q

What does in ammeter measure and how was it connected in a circuit

A

And ammeter measures current strength and is connected in series

17
Q

Current is the …….. In series

A

Same

18
Q

Current is ………. In parallel circuit

A

Divided

19
Q

Potential difference

A

Potential difference between two points is the work done per-unit charge and moving a positive test charge from one point to another

20
Q

Voltage formula

A

V=W/Q

21
Q

A volt meter measures what and how was it connected in a circuit

A

Volt meter measures potential difference of voltage and is connected in parallel

22
Q

Voltages in series………… Equal total voltage

A

Added

23
Q

Voltages in parallel are ………. To total voltage

A

Equal

24
Q

Resistance

A

The measure of how difficult it is for electricity to go through a conductor

25
Q

Long wires have… Resistance and short wires, Thin wires have… Resistance done thick wires, hot wires have… Resistance than cold wires.tungsten, Ireland and night chrome wires have… Resistance than copper and aluminium wires

A

MORE

26
Q

Resistance formula

A

R=V/I

27
Q

Resistance in series

A

More resistance equals more total resistance and less current

28
Q

Resistance in parallel

A

More resistance equals less total resistance and more current

29
Q

Cell

A

Converts chemical energy into electrical energy

Physical Science- Science Definitions (6 decks)

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