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Science Summer Exams Topic 2 > Physics 2 > Flashcards

Physics 2 Flashcards

1
Q

Common circuit symbols

A

Cell,battery,resistor,ammeter,variable resistor,

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2
Q

Current…?

A

The flow of charge around a circuit

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3
Q

Electron

A

Flow around the circuit. They get given energy to light up the bulbs. The negative charge.

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4
Q

Atom

A

The main part of chemical elements

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5
Q

Ammeter

A

Measures the flow of electrons in a circuit (current)

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6
Q

Voltage

A

the ‘pressure’ that pushes electricity

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7
Q

Resistance

A

The opposite force of electricity

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8
Q

Resistance

A

The opposite force of electricity

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9
Q

Parallel circuit

A

Two paths for current to flow through.

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10
Q

Series circuit

A

Only one path for current to flow through

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11
Q

Neutron

A

Neutral charge

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12
Q

Proton

A

Positive charge

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13
Q

What is resistance measured in

A

Ohms

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14
Q

What is voltage measured in

A

Volts

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15
Q

What is current measured in

A

Amps

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16
Q

Equation for resistance

A

Resistance = voltage x current

17
Q

Light bulb

A

Lights up when the circuit is complete

18
Q

Voltmeter

A

Measures the voltage produced by a power supply

19
Q

Resistor

A

Makes sure the circuit doesn’t over heat by limiting the current flow at a fixed amperage

20
Q

Variable resistor

A

Makes sure the current does get too high but can be adjusted unlike a normal resistor

21
Q

Fewer amount of bulbs mean…?

A

There will be a lower resistance so the current can flow faster

22
Q

Cell

A

Transforms chemical energy into electrical energy when a circuit is complete

23
Q

Battery

A

Two or more cells connected together

24
Q

Open switch

A

When two contacts are not made

25
Q

Closed switch

A

Two contacts are connected. The circuit will work

26
Q

Motor

A

Converts electrical energy into kinetic energy

27
Q

Buzzer

A

Converts electrical energy into sound energy

28
Q

Circuit rules

A

Draw in pencil and straight lines
Use circuit symbols
No stranger squiggly wires
Components aren’t to be in corners
Wires can’t cross

29
Q

How much current depends on

A

Charged particles

30
Q

Less current….

A

More voltage

31
Q

Less resistance…..

A

Greater current

32
Q

All the same in series but split in parallel?

A

Current

33
Q

Plug whirring pun

A

The live brown cow sat under the neutral blue sky and ate the green and yellow earth grass.

34
Q

Plugs…?

A

Plugs are designed to deal with different current levels. Different current levels depend on the device. It is important to have the correct fuse because different appliances nave different current levels.

Science Summer Exams Topic 2 (3 decks)

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