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125124
Science Energy
Description
Elementary/Primary School Exams Science Quiz on Science Energy, created by chrisrod98 on 07/06/2013.
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science
science
elementary/primary school exams
Quiz by
chrisrod98
, updated more than 1 year ago
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Created by
chrisrod98
over 11 years ago
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Resource summary
Question 1
Question
What is a Joule?
Answer
A unit of energy
A type of energy
Question 2
Question
Why is energy important?
Answer
It makes things move and grow.
It is required to make things happen.
Question 3
Question
What is potential energy?
Answer
Energy which can be change to different types.
Energy stored in an object due to its position.
Question 4
Question
What is heat energy?
Answer
Energy that is possessed by all hot objects.
Energy which is hot
Question 5
Question
What is chemical potential energy?
Answer
Energy held in bonds between atoms.
Energy from chemicals
Question 6
Question
What is kinetic energy?
Answer
Energy from stationary objects
Energy possessed by all moving objects.
Question 7
Question
What is a Watt?
Answer
A unit of energy
A unit of power
Question 8
Question
What is electrical energy?
Answer
Currents in electric.
Energy carried by moving charges
Question 9
Question
Gravitational potential energy?
Answer
Energy possessed by all objects, which are high up
Energy in falling objects
Question 10
Question
What is elastic potential energy?
Answer
Energy in rubber bands
Energy stored in squashed or stretched objects
Question 11
Question
What is nuclear potential energy?
Answer
Energy stored in the nucleus of an object.
Energy in radioactive materials
Question 12
Question
When would an object have more kinetic energy?
Answer
When it increases speed
When it slows down
Question 13
Question
Why is heat energy a type of kinetic energy?
Answer
Because fire moves
Because it is due to the movement of particles, which speed up when an object is heated.
Question 14
Question
What is radiant energy?
Answer
Energy carried by electromagnetic waves like light and xrays.
Energy that is radiant
Question 15
Question
1 Kilo Joule is equal to...
Answer
1000 Joules
100 Joules
Question 16
Question
1 calorie is equal to...
Answer
4 kilo Joules
4.2 kilo Joules
Question 17
Question
How to interpret constant speed?
Answer
Equal distance in equal interval of time
The graph is bent
Question 18
Question
How to interpret accelerating graph?
Answer
Unequal distance in equal interval of time
Straight graph
Question 19
Question
Energy input=_____ energy+_______ energy
Answer
Useful and waste
heat and chemical
Question 20
Question
How to find the energy efficiency of something?
Answer
Divide by 5 then times 100
Useful energy output divide total energy input times 100 and answer is in %
Question 21
Question
How to find distance with speed and time?
Answer
Speed divided by time
Time divide by speed
Question 22
Question
How to find time with distance and velocity?
Answer
Distances divide by velocity.
Times distance by velocity
Question 23
Question
What is the conservation of energy law?
Answer
Energy can neither be created or destroyed but it can be changed from one form to another (or passed between objects)
Energy cannot be over used
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