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Physics Jan Exam 2024 > Topic 4 > Flashcards

Topic 4 Flashcards

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1
Q

What would chemical energy be in a steam turbine

A

Fuel

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2
Q

Heat energy in a steam turbine will be

A

Furnace

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3
Q

Kinetic energy in steam turbine is

A

Turbine

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4
Q

What energy would the generator be in the steam turbine

A

Electric

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5
Q

Non renewable energy sources

A

Will eventually run out

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6
Q

Nuclear non renewable energy sources

A

Uranium

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7
Q

Fossil fuel non renewable energy sources

A

Coal oil gas peat

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8
Q

Renewable energy sources

A

Energy sources which won’t run out or are replaceable

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9
Q

Eg of renewable energy sources

A

Solar, wind, tidal geothermal bio mass

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10
Q

What is a atom made of

A

Protons neutrons and electrons

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11
Q

What is nuclear fission

A

When a large nucleus absorbs a neutron which becomes unstable and splits nucleus into 2 smaller nuclei

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12
Q

What is a chain reaction in fisssion

A

The neutrons produced hit other uranium and causes more fission reactions

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13
Q

What is nuclear fission used for

A

Used in nuclear power stations to generate heat and produce steam to make electricity

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14
Q

What are nuclear power stations fuelled by

A

Uranium

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15
Q

What are control rods

A

Control rate of fission by absorbing excess neutrons

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16
Q

What is nuclear fusion

A

Process of 2 nuclei combine to form a larger mass number nucleus

17
Q

Nuclear fusion eg

A

Hydrogen(smaller) join to make helium(bigger)

18
Q

What is the main nuclear process in the sun

A

Nuclear fusion

19
Q

2 different nuclear process

A

Fusion and fission

20
Q

Which nuclear process produces more nuclear waste and is more difficult to manage

A

Fission

21
Q

How is fission used to make nuclear bomb

A

When fission fuel is used in an uncontrolled way to cause an explosion

22
Q

How is fusion used to make nuclear bomb

A

When fusion fuel is heated to very high temp causes an explosion

23
Q

What is Einstein’s equation and what does it stand for

A

E=Mc2 which means energy= mass x speed of light squared

24
Q

What does Einstein’s equation basically mean

A

Little bit of mass creates vast amounts of energy

25
Q

Energy resources examples

A

Oil gas nuclear coal wind solar biomass hydroelectric and tidal

26
Q

Renewable resources are

A

Energy resources which can be replaced quickly eg (growing trees for biomass) or are inexhaustible like sun wind and tides

27
Q

Non renewable resources eg

A

Energy sources which will run out
Once used can’t make more

28
Q

Non renewable fossil fuels eg

A

Oil coal and gas

29
Q

Nuclear fuel eg for non renewable resources

A

Uranium

30
Q

What type of energy is in petrol

A

Chemical

31
Q

Kinetic —>

A

Sound + heat/thermal

32
Q

Energy going in and energy going out of microphone

A

Sound in electricity out

33
Q

What energy would be on a stretched catapult first of all

A

Elastic and then changed to kinetic

Physics Jan Exam 2024 (4 decks)

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