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What to know - Physics 1 - notes for mocks
A-level physics (University of Oxford)
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Define a system as an object or group of objects and state examples of changes in the way
energy is stored in a system
4.1.1 Energy changes in a system, and the ways energy is stored before and after such changes
Describe how all the energy changes involved in an energy transfer and calculate relative
changes in energy when the heat, work done or flow of charge in a system changes
Use calculations to show on a common scale how energy in a system is redistributed
Calculate the kinetic energy of an object by recalling and applying the equation: [ Ek =
½mv2 ]
Calculate the amount of elastic potential energy stored in a stretched spring by applying,
but not recalling, the equation: [ Ee= ½ke2 ]
Calculate the amount of gravitational potential energy gained by an object raised above
ground level by recalling and applying, the equation: [ Ee = mgh ]
Calculate the amount of energy stored in or released from a system as its temperature
changes by applying, but not recalling, the equation: [ ΔE = mcΔθ ]
Define the term 'specific heat capacity'
Required practical 1: investigation to determine the specific heat capacity of one or more
materials.
Define power as the rate at which energy is transferred or the rate at which work is done
and the watt as an energy transfer of 1 joule per second
Calculate power by recalling and applying the equations: [ P = E/t & P = W/t ]
Explain, using examples, how two systems transferring the same amount of energy can
differ in power output due to the time taken
Downloaded by olinder seth ()
What to know - Physics 1 - notes for mocks
A-level physics (University of Oxford)
Scan to open on Studocu
Studocu is not sponsored or endorsed by any college or university
Downloaded by olinder seth ()
, lOMoARcPSD|59658805
Define a system as an object or group of objects and state examples of changes in the way
energy is stored in a system
4.1.1 Energy changes in a system, and the ways energy is stored before and after such changes
Describe how all the energy changes involved in an energy transfer and calculate relative
changes in energy when the heat, work done or flow of charge in a system changes
Use calculations to show on a common scale how energy in a system is redistributed
Calculate the kinetic energy of an object by recalling and applying the equation: [ Ek =
½mv2 ]
Calculate the amount of elastic potential energy stored in a stretched spring by applying,
but not recalling, the equation: [ Ee= ½ke2 ]
Calculate the amount of gravitational potential energy gained by an object raised above
ground level by recalling and applying, the equation: [ Ee = mgh ]
Calculate the amount of energy stored in or released from a system as its temperature
changes by applying, but not recalling, the equation: [ ΔE = mcΔθ ]
Define the term 'specific heat capacity'
Required practical 1: investigation to determine the specific heat capacity of one or more
materials.
Define power as the rate at which energy is transferred or the rate at which work is done
and the watt as an energy transfer of 1 joule per second
Calculate power by recalling and applying the equations: [ P = E/t & P = W/t ]
Explain, using examples, how two systems transferring the same amount of energy can
differ in power output due to the time taken
Downloaded by olinder seth ()
