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Descrição
Quiz por chrisrod98, atualizado more than 1 year ago
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Criado por chrisrod98
quase 11 anos atrás
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Questão 1
Questão
What is a Joule?
Responda
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A unit of energy
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A type of energy
Questão 2
Questão
Why is energy important?
Responda
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It makes things move and grow.
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It is required to make things happen.
Questão 3
Questão
What is potential energy?
Responda
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Energy which can be change to different types.
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Energy stored in an object due to its position.
Questão 4
Questão
What is heat energy?
Responda
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Energy that is possessed by all hot objects.
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Energy which is hot
Questão 5
Questão
What is chemical potential energy?
Responda
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Energy held in bonds between atoms.
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Energy from chemicals
Questão 6
Questão
What is kinetic energy?
Responda
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Energy from stationary objects
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Energy possessed by all moving objects.
Questão 7
Questão
What is a Watt?
Responda
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A unit of energy
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A unit of power
Questão 8
Questão
What is electrical energy?
Responda
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Currents in electric.
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Energy carried by moving charges
Questão 9
Questão
Gravitational potential energy?
Responda
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Energy possessed by all objects, which are high up
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Energy in falling objects
Questão 10
Questão
What is elastic potential energy?
Responda
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Energy in rubber bands
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Energy stored in squashed or stretched objects
Questão 11
Questão
What is nuclear potential energy?
Responda
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Energy stored in the nucleus of an object.
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Energy in radioactive materials
Questão 12
Questão
When would an object have more kinetic energy?
Responda
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When it increases speed
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When it slows down
Questão 13
Questão
Why is heat energy a type of kinetic energy?
Responda
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Because fire moves
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Because it is due to the movement of particles, which speed up when an object is heated.
Questão 14
Questão
What is radiant energy?
Responda
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Energy carried by electromagnetic waves like light and xrays.
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Energy that is radiant
Questão 15
Questão
1 Kilo Joule is equal to...
Responda
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1000 Joules
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100 Joules
Questão 16
Questão
1 calorie is equal to...
Responda
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4 kilo Joules
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4.2 kilo Joules
Questão 17
Questão
How to interpret constant speed?
Responda
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Equal distance in equal interval of time
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The graph is bent
Questão 18
Questão
How to interpret accelerating graph?
Responda
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Unequal distance in equal interval of time
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Straight graph
Questão 19
Questão
Energy input=_____ energy+_______ energy
Responda
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Useful and waste
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heat and chemical
Questão 20
Questão
How to find the energy efficiency of something?
Responda
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Divide by 5 then times 100
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Useful energy output divide total energy input times 100 and answer is in %
Questão 21
Questão
How to find distance with speed and time?
Responda
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Speed divided by time
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Time divide by speed
Questão 22
Questão
How to find time with distance and velocity?
Responda
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Distances divide by velocity.
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Times distance by velocity
Questão 23
Questão
What is the conservation of energy law?
Responda
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Energy can neither be created or destroyed but it can be changed from one form to another (or passed between objects)
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Energy cannot be over used
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