Combined Science Paper 1(AQA Physics) Training Exam Questions Answered Correctly.
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Course
Combined Science
Institution
Combined Science
an object or group of objects - Answer system
_______ energy is the total kinetic energy and potential energy of all particles that make up a system - Answer internal
the idea that there is the same amount of energy befire and after it is transferred - Answer conservation of energy
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Combined Science Paper 1(AQA
Physics) Training Exam Questions
Answered Correctly.
an object or group of objects - Answer system
_______ energy is the total kinetic energy and potential energy of all particles that make up a system -
Answer internal
the idea that there is the same amount of energy befire and after it is transferred - Answer
conservation of energy
energy cannot be ------- -- --------- - Answer created or destroyed
= 0.5 x mass x (speed)^2 - Answer kinetic energy
type of energy stored in a stretched spring - Answer elastic potential energy
= mass x gravitational field strenght x height - Answer gravitational potential energy
= force x distance - Answer work
the rate at which energy is transferred or the rate at which work is done? - Answer power
what is the unit for power? - Answer watt
1000,000 watts= - Answer megawatt
, 1000 watts= - Answer kilowatt
the amount of energy required to raise the temperature of one kilogram of the substance by one degree
celsius - Answer specific heat capacity
how to reduce unwanted energy transfer due heat loss - Answer thermal insulation
when a layer of gas is trapped between 2 layers of glass - Answer double glazing
the higher the ------- ------------ of a material the higher the rate of energy transfer by conduction across
the material - Answer thermal conductivity
=useful energy output / total energy input - Answer efficiency
how to reduce unwanted energy transfer due to friction of moving parts - Answer lubrication
an energy resource that is being (or can be) replenished as it is used - Answer renewable
an energy source that will run out and can't be replenished - Answer non renewable
1,000,000,000 watts - Answer gigawatt
sulfur dioxide causes this problem for the environment - Answer acid rain
burning coal produces this acid rain causing gas - Answer sulfur dioxide
fuels that remove the same amount of carbon dioxide as they produce are.... - Answer carbon neutral
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