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WorksheetsEnergy Test
Total questions: 21
Worksheet time: 27mins
Categorise these words as energy stores or energy transfers
Magnetic
Internal (Thermal)
Chemical
Kinetic
Electrostatic
Elastic (potential)
Gravitational (potential)
Nuclear
Mechanical
Electrical
Heating
Radiation
At at power station energy is
transferred from store to store
created
destroyed
recycled
Match the following image to it's greatest store of energy
Chemical (potential)
Gravitational (potential)
Kinetic
Elastic (potential)
Internal (thermal)
Label the equation
Force
Work Done
Speed
Time
Label the equation
Force
Work Done
Power
Time
Label the equation
Force
Kinetic Energy
Mass
Time
Label the equation
Mass
Work Done
Gravitational Field Strength
Gravitational Potential Energy
Reorder the following from largest to smallest
km
m
mm
μm
nm
What is 500g in kg?
500,000
50
5
0.5
0.05
Match the following to their units
Energy
(J)
Power
(W)
Mass
(kg)
Velocity
(m/s)
Time
(s)
Energy can be (a) from one store to another. Not all energy transfers are (b) . Waste energy (c) to the (d) . This is often by (e) or wave radiation.
In this Sankey diagram which number represents the total energy input?
In this Sankey diagram which number represents the useful energy transfer of an electric radiator?
What is the efficiency of the electric radiator? (only write a number) (a) %
A ball w 0.5kg is lifted 20m in the air. How much GPE does it have in J, assume gravitational field strength is 10.
(a) ? (only write the number0
Another ball has 500J of energy when thrown. It reaches a height of 20m, what is the mass of the ball? Assume g = 10
Mass = (a) kg
A cyclist has 2kJ of potential energy at the top of the hill. When they cycle down they only have 1.25kJ of kinetic energy. Why have they not got the same amount of energy? (select all correct answers)
They took a rest
They did not transfer all the GPE as they are not at the bottom of the hill.
Some of the energy dissipates to the surroundings
They took a break
Their wheels got bigger
A cyclist has a mass of 56kg, their bike has a mass of 4kg. When travelling at 12m/s how much kinetic energy do they have?
(a) J (give the number only)
Another cyclist has 6000J of energy. They are travelling at 10m/s. Their bike has a mass of 2kg. What is the mass of the cyclist in kg?
(a) kg
Match the following
Calculate power (in W) if energy is 50J and Time is 2s
25
Calculate Energy (J) if Power is 600W and Time is 5s
3000
Calculate time (s) if Power is 0.5W and Energy is 20
40
Calculate power (W) if energy is 2.5kJ and Time is 20s
125
Calculate Energy (J) if Power is 600W and time is 1 minute
10
What are the common energy transfers that occur when energy dissipates to the surroundings?
Radiation (waves)
Mechanical
Heating
Elcectrical
Thermal
