# Physics

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- Created by: becomesocialghost
- Created on: 07-06-18 22:29

Name the 10 types of energy

Kinetic, Elastic Potential, Thermal, Magnetic, Gravitational Potential, Nuclear, Sound, Light, Chemical

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What is energy required for?

For work to be done

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Energy can not be created or destroyed, What happens to it instead?

It is conserved so it can be transferred

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How do you calculate efficiency?

Effiency = useful output energy ÷ total input energy ( x100 when percentage)

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How do you calculate gravitational potential energy?

Gravitational potential energy = mass x gravitational field strength x height

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How do you calculate kinetic energy?

Kinetic Energy = 1/2 mass x velocity

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What is Hooke's Law?

Doubling the force acting on the spring will double its extension

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What is specific heat capacity?

the amount of energy required per unit mass to raise the temperature by 1 degree

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How do you calculate specific heat capacity?

Specific heat capacity = energy ÷ mass x change in temperature

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How do you calculate the energy (P1)?

Energy = mass x specific heat capacity x change in temperature

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What is renewable energy?

Energy that can be replenished

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How do you calculate power (P1)?

Power = energy ÷ time

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How do you calculate charge?

Charge = current x time

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How do you calculate resistance?

Resistance = voltage ÷ current

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How do you calculate energy (P2)?

Energy = power x time

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What is the potential difference?

The difference in electrical potential energy across the circuit

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What is a series circuit?

A circuit in which all the components are in a single loop

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Which type of circuit are bulbs brighter in and why?

Parallel, because there is more power

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How do you calculate the total resistance in a series circuit?

Find the sum of the resistors

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What does a longer and thinner wire mean?

That collisions between ions will become more frequent, resulting in an increase in resistance

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What are the four main components of a UK mains plug?

The Earth wire, the neutral wire, the live wire, and the fuse

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What is the difference between AC and DC?

AC voltage and current are always changing, DC voltage and current remain the same

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How do you calculate the density of an object?

Density = mass ÷ volume

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What are the four states of matter?

Solid, Liquid, Gas, Plasma

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What is the process of turning from a solid to a gas (and vice versa) called?

Sublimation

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What will happen if the heat is raised in a fixed volume?

The gas pressure will increase

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What is latent heat of fusion?

The energy required to change state from a solid to a liquid

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What is latent heat of vaporisation?

The energy required to change state from liquid to gas

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What is an ion?

An atom that has gained or lost electrons

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What is an isotope?

An atom that's had a variation in the number of neutrons

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What is decay?

When unstable atoms release radiation

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What stops alpha radiation?

Paper and skin

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What is the relative size of beta radiation?

2

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What is the charge of gamma radiation?

0

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What is the equation for alpha decay?

Decrease the proton number by 4, decrease the atomic mass by 2

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What is the equation for beta decay?

Increase the proton number by 1, leave the atomic mass the same

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What is half-life?

The time taken for half the unstable nuclei to decay

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## Other cards in this set

### Card 2

#### Front

What is energy required for?

#### Back

For work to be done

### Card 3

#### Front

Energy can not be created or destroyed, What happens to it instead?

#### Back

### Card 4

#### Front

How do you calculate efficiency?

#### Back

### Card 5

#### Front

How do you calculate gravitational potential energy?

#### Back

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