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Beschreibung
Quiz von chrisrod98, aktualisiert more than 1 year ago
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Erstellt von chrisrod98
vor fast 11 Jahre
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Frage 1
Frage
What is a Joule?
Antworten
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A unit of energy
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A type of energy
Frage 2
Frage
Why is energy important?
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It makes things move and grow.
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It is required to make things happen.
Frage 3
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What is potential energy?
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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.
Frage 4
Frage
What is heat energy?
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Energy that is possessed by all hot objects.
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Energy which is hot
Frage 5
Frage
What is chemical potential energy?
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Energy held in bonds between atoms.
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Energy from chemicals
Frage 6
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What is kinetic energy?
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Energy from stationary objects
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Energy possessed by all moving objects.
Frage 7
Frage
What is a Watt?
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A unit of energy
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A unit of power
Frage 8
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What is electrical energy?
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Currents in electric.
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Energy carried by moving charges
Frage 9
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Gravitational potential energy?
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Energy possessed by all objects, which are high up
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Energy in falling objects
Frage 10
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What is elastic potential energy?
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Energy in rubber bands
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Energy stored in squashed or stretched objects
Frage 11
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What is nuclear potential energy?
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Energy stored in the nucleus of an object.
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Energy in radioactive materials
Frage 12
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When would an object have more kinetic energy?
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When it increases speed
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When it slows down
Frage 13
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Why is heat energy a type of kinetic energy?
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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.
Frage 14
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What is radiant energy?
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Energy carried by electromagnetic waves like light and xrays.
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Energy that is radiant
Frage 15
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1 Kilo Joule is equal to...
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1000 Joules
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100 Joules
Frage 16
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1 calorie is equal to...
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4 kilo Joules
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4.2 kilo Joules
Frage 17
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How to interpret constant speed?
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Equal distance in equal interval of time
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The graph is bent
Frage 18
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How to interpret accelerating graph?
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Unequal distance in equal interval of time
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Straight graph
Frage 19
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Energy input=_____ energy+_______ energy
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Useful and waste
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heat and chemical
Frage 20
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How to find the energy efficiency of something?
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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 %
Frage 21
Frage
How to find distance with speed and time?
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Speed divided by time
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Time divide by speed
Frage 22
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How to find time with distance and velocity?
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Distances divide by velocity.
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Times distance by velocity
Frage 23
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What is the conservation of energy law?
Antworten
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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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