Physics

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?
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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?

Card 4

Front

How do you calculate efficiency?

Card 5

Front

How do you calculate gravitational potential energy?