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Year 10 Physics > Rest of Notes > Flashcards

Rest of Notes Flashcards

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1
Q

What is static electricity?

A

Static electricity is a build-up of electrical charge on an object.

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2
Q

What happens when you rub one neutral , electrically insulating object against another?

A

Some of the electrons are transferred across. This leaves an excess of negative charge on one of the objects, and a deficit on the other.

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3
Q

Outer insulation

A

All three wires in the cable are bundled together and there is extra plastic insulation wrapped round them all for safety

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4
Q

Cable grip

A

This holds the cable tightly in place so that wires do not become loose

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5
Q

Live wire

A

Copper wire coated with brown plastic along which the current enters the device

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6
Q

Fuse

A

A glass or ceramic canister containing a thin wire that melts if the current gets too high

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7
Q

Neutral wire

A

Copper wire coated with blue plastic that also connects to the cable in the wall and completes the circuit

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8
Q

Earth wire

A

Copper wire coated in striped plastic that provides a path for current to flow from the case of the device to the ground if there is a fault

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9
Q

what does energy =

A

energy=power x time

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10
Q

What is the unit for charge?

A

Coloumbs

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11
Q

What is the unit for resistance?

A

Ohms

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12
Q

What is the unit for potential difference?

A

Volt

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13
Q

What is the unit for current?

A

Ampere

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14
Q

What is a renewable energy resource?

A

Renewable energy is energy that comes from a source that won’t run out. .

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15
Q

What are examples of renewable energy resources?

A

Examples of renewable energy sources include wind power, solar power, bioenergy (organic matter burned as a fuel) and hydroelectric, including tidal energy.

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16
Q

What is a non renewable energy resource?

A

An energy resource that can run out.

17
Q

What are examples of non renewable energy resources?

A

Coal,oil and natural gas.

18
Q

what is the independent variable?

A

Independent variable – the variable that is altered during a scientific experiment.

19
Q

What is the dependent variable?

A

Dependent variable – the variable being tested or measured during a scientific experiment.

20
Q

What is the control variable?

A

Controlled variable – a variable that is kept the same during a scientific experiment.

21
Q

What are the types of waves?

A

Transverse
Longitudinal
Mechanical
Electromagnetic

22
Q

What do waves do?

A

They transfer energy without transferring matter.

23
Q

Transverse?

A

The vibrations are perpendicular to direction of energy transfer.

24
Q

Longitudinal?

A

The vibrations are parallel to the direction of energy transfer.

25
Q

What is a transverse wave that is mechanical?

A

Water waves

26
Q

What is a transverse wave that is electromagnetic?

A

Light wave

27
Q

What is a longitudinal wave that is mechanical?

A

Sound waves.

28
Q

What is a longitudinal wave that is electromagnetic?

A

Earthquake wave.

29
Q

What is the amplitude?

A

The maximum distance from the undisturbed position.

30
Q

What is the wavelength?

A

The distance between the point on a wave to the same point on another wave eg ( crest to crest) or (trough to trough)

31
Q

What is the compression of wave?

A

The compression of a wave is an area of higher pressure and the particles are more densley packed.

32
Q

What is the rarefaction of a wave?

A

The rarefaction is an area of lower pressure and the particles are less densely packed.

33
Q

What is the frequency?

A

The frequency of a wave is the number of waves produced by a source each second.

34
Q

Features of reflection?

A

1 No change in frequency
2 No change in wavelength
3 No change in speed
4 Direction of wave travel changes.

Year 10 Physics (4 decks)

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