WorksheetsEnergy Revision Y7 Quiz
Total questions: 50
Worksheet time: 43mins
Which type of energy does a moving ball have?
kinetic
elastic
potential
chemical
Which type of energy does the petrol in a car have?
gravitational potential
elastic
chemical
light
Which type of energy is stored in a Sunday roast dinner?
light
chemical
elastic
kinetic
Batteries contain this type of energy
Electrical
Chemical
Thermal
Kinetic
What type of energy is in this picture?
Kinetic
Elastic
Chemical
Sound
Kinetic
Gravitational
M
On a roller coaster, where is maximum gravitational potential energy?
At the bottom of a big hill
When going around a corner
When going upside down
At the top of a big hill
According to which law of energy, energy can't be created or destroyed?
First law of motion
The law of tacos
Laws of the world
Law of conservation of energy
Calculate efficiency for a light bulb with these energy changes
Efficiency = total energy inuseful energyx 10090%
100%
110%
10%
What kind of energy is represented in the picture?
Thermal
Chemical
Sound
Kinetic
What energy change change takes place in a table lamp?
Thermal to electricity and sound
Chemical to light and heat
Electrical to light and heat
Electrical to heat and chemical
In a washing machine, electricity changes into kinetic, heat and sound energy. Which of these are useful energy changes?
kinetic
heat
sound
In a washing machine, electricity changes into kinetic, heat and sound energy. Which of these are wasted energy changes?
kinetic
heat
sound
Total energy = 200J
Useful energy = 20J
Workout the efficiency of this lightbulb.
efficiency = total energy inuseful enegy ×100
100%
80%
40%
10%
A lightbulb with efficiency of 10% would be
efficient
inefficient
Total energy = 350J
Useful energy = 70J
Workout the efficiency of this iphoneX.
efficiency = total energy inuseful energy ×100%
100%
80%
40%
20%
Total energy = 1000J
Useful energy = 1000J
Workout the efficiency of this hairdryer.
efficiency = total energy in useful energy ×100%
100%
50%
40%
20%
Total energy = 34000J
Useful energy = 340J
Workout the efficiency of this vintage VW Beetle.
efficiency = total energy inuseful energy ×100%
100%
1%
40%
20%
What is the useful energy type in this example?
Electrical
Kinetic
Thermal
Sound
What is the useful energy type in this example?
Electrical
Mechanical
Thermal
Sound
Which form of energy is least important in this device?
Electrical
Light
Sound
Thermal
Identify the energy changes
electrical to chemical to light
kinetic to potential
chemical to electrical to light
light to sound
Identify the energy changes
chemical to kinetic
solar to electrical
thermal to light
electrical to light
Identify the energy transfer
light to electrical to chemical
chemical to electrical to light
electrical to chemical to light
chemical to electrical to solar
Identify the energy transfer
mechanical to light
chemical to kinetic
electrical to kinetic
kinetic to thermal
Identify the energy transfer
electrical to sound
sound to electrical to chemical
electrical to sound to chemical
potential to kinetic to light
Identify the energy transfer
kinetic to mechamical
light to thermal
gravitational potential to kinetic
electrical to magnetism
Identify the energy transfer
chemical to solar
electrical to thermal
chemical to light
thermal to kinetiv
Identify the energy transfer
potential to chemical
electrical to kinetic
mechanical to sound
chemical to thermal
Energy can't be created and can't be destroyed
true
false
Useful energy change in a hair dryer
thermal (heat)
kinetic
chemical
elastic
Missing number?
(a)
Missing number?
(a)
Missing number?
(a)
In fairy lights ............... energy changes to .................. energy
electrical, light
light, sound
elastic, light
gravitational, thermal
Electrical Energy is changed to _____ Energy.
Thermal
Kinetic
Electrical
Gravitational
Which energy change is taking place when you put petrol in a car?
thermal -> electrical
elastic -> electrical
chemical -> kinetic
sound -> kinetic
How much energy changes into heat energy?
(a)
How much energy changes into heat and sound energy?
(a)
How much energy changes into heat and sound energy?
(a)
How much electrical energy goes into this device?
(a)
How much energy changes to thermal energy?
(a)
Which form of energy can be stored?
electrical
sound
light
elastic
Select all forms of energy that can be stored
electrical
chemical
light
elastic
gravitational
Select all forms of energy that are transfers
electrical
chemical
light
elastic
gravitational
Which form of energy is a transfer?
electrical
chemical
elastic
thermal
gravitational
Some forms of energy can be stored and some cannot.
true
false
The rock in the picture is pushed over the edge and it begins to fall. Which type of energy conversion is taking place?
kinetic to heat
sound to thermal
gravitational potential to kinetic
kinetic to chemical
