WorksheetsYear 8 science: Energy
Total questions: 17
Worksheet time: 18mins
An energy resource that can be replaced and will not run out.
Non-renewable
Renewable
Energy Resource
Conservation of energy
An energy resource that will eventually run out.
Non-renewable
Renewable
Energy Resource
Conservation of energy
An energy resource that can be released in a useful way.
Non-renewable
Renewable
Energy Resource
Conservation of energy
The law of conservation of energy states...
Energy can be created and destroyed and can be transferred
Energy cannot be created but can be destroyed and can be transferred
Energy cannot be created or destroyed and cannot be transferred
Energy cannot be created or destroyed, only transferred between stores
Which three of these are renewable energy resources?
Solar
Gas
Geothermal
Tidal
Nuclear
Which three of these are non- renewable energy resources?
Oil
Wind
Hydro
Coal
Nuclear
Which of these are types of energy stores? (Select ALL correct answers)
Chemical
Atomic
Thermal
Kinetic
Gravitational
Which of these are types of energy stores? (Select ALL correct answers)
Elastic
Nuclear
Protonic
Magnetic
Electrostatic
The power rating of an appliance tells you how much energy is transferred per second (the rate of energy transfer). Power can be calculated by using which calculation (NOTE: You might have to convert units when completing the calculation)?
Power(W) = energy(J) × time(s)
Power(W) = energy(J) ÷ time(s)
Power(W) = time(s) ÷ energy(J)
Power(W) = energy(s) ÷ time(J)
You can calculate the cost of using an appliance at home using the equation (NOTE: You might have to convert units when completing the calculation):
cost = power(kW) ÷ time(hours) ÷ price(per kWh)
cost = power(kW) ÷ time(hours) x price(per kWh)
cost = power(kW) x time(hours) ÷ price(per kWh)
cost = power(kW) x time(hours) x price(per kWh)
How is energy used to in a power station the produce current in order for electrical appliances to work at home? (select all correct answers)
Fuel is burnt in a furnace to heat water in the boiler
Fuel is burnt and the heat from the fuel captured in a boiler.
The water turns to steam; this turns a turbine.
The turbine turns a generator which generates electricity.
The captured heat turns a turbine, which generates electricity.
What type of energy is in food?
Chemical
Thermal
Elastic
Kinetic
Electrostatic
What type of energy is a moving object?
Chemical
Thermal
Elastic
Kinetic
Electrostatic
What type of energy is stored in a catapult?
Chemical
Thermal
Elastic
Kinetic
Electrostatic
What type of energy is stored in a battery?
Chemical
Thermal
Elastic
Kinetic
Electrostatic
Which has more energy?
Solid
Liquid
Gas
What is the relationship between energy transferred and power?
They are the same thing.
The rate in which energy is transferred is the power.
Energy and power have an inverse relationship.
Power enables energy to be transferred.
