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Physics Paper 1 > Forms Of Energy > Flashcards

Forms Of Energy Flashcards

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1
Q

What is energy?

A

Quantity related to work

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2
Q

What is potential energy?

A

Stored energy that has potential to turn into another type of energy

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3
Q

What is gravitational potential energy?

A

Energy of an object at a height

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4
Q

What objects are affected by gravitational potential energy?

A

Aeroplanes, kites and mugs on a table
Anything evevated

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5
Q

What is magnetic energy?

A

Energy stored when repelling polesd have been pushed closer together
Energy stored when attracting poles have been pulled further apart

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6
Q

What objects are affected by magnetic energy?

A

Fridge magnets
Compasses
Maglev trains

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7
Q

What is thermal(internal) energy?

A

Total kinetic and potential energy of particles in an object
In hotter objects particles have more internal energy and vibrate faster

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8
Q

What contains thermal energy?

A

Human bodies
Hot coffee
Stoves or hobs
Ice particles but they vibrate slower

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9
Q

What is chemical energy?

A

Energy stored in chemical bonds

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10
Q

What contains chemical energy?

A

Food
Muscles
Electrical cells

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11
Q

What is kinetic energy?

A

Energy of a moving object

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12
Q

What contains kinetic energy?

A

Runners
Buses
Comets
All moving objects

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13
Q

What is electrostatic energy?

A

Energy stored when repelling charges have been moved closer together
Energy stored when attracting charges are pulled further apart

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14
Q

What contains electrostatic energy?

A

Thunderclouds
Van de graff generators

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15
Q

What is elastic potential energy?

A

Energy stored when an object is stretched or squashed

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16
Q

What contains elastic potential energy?

A

Drawn catapults
Compressed springs
Inflated balloons

17
Q

What is nuclear energy?

A

Energy stored in the nucleus of an atom

18
Q

What contains nuclear energy?

A

Uranium nuclear power
Nuclear reactors

19
Q

What is a system?

A

Am object or a group of objects

20
Q

What is an example of energy transfer with a swinging ship?

A

Kinetic energy is transferred to gravitational potential energy in the sky

21
Q

What is an example of energy transfer using a boat?

A

Chemical energy from fuel being burned gets turned into kinetic energy as the engine pushes it forward

22
Q

What is mechanical work

A

Force moving an object through a distance

23
Q

What is electrical work

A

Charges moving due to a potential difference

24
Q

What causes heating

A

Due to temperatures difference between objects

25
Q

How does transferring energy with radiation work

A

Energy transferred as a wave ,
light and infrared radiation are emitted from the sun as waves

26
Q

What is work

A

Scientific term for saying energy has been transferred

27
Q

What is energy dissipation?

A

When energy is wasted in a change of energy in a system

28
Q

How is energy dissipated in a mechanical system?

A

When two surfaces rub together
Friction

29
Q

How does internal energy of surfaces increase in mechanical systems?

A

Work is done against friction which heats the surfaces

30
Q

How can you reduce heat loss with friction?

A

Adding lubricant

31
Q

What is conservation of energy?

A

Energy can be transferred usefully, stored or dissipated but never created or destroyed

Physics Paper 1 (10 decks)

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