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Science

energy

QuestionAnswer
What is another name for burning? combustion
What is the correct unit for energy? joule
Which of these foods has the most energy per 100 grams? bread
Around how many kJ of energy does an adult need per day? 8400
What is the term that means the rate at which energy is used? power
What are the units of power? watts
How can energy be released from food? combustion and resperation
How many watts are in a kilowatt? 1000
Which of these electric items uses the most power? Oven
What units do electrical suppliers use for energy? kWh
Which of the following is a non-renewable energy resource? Natural gas
Where did the energy stored in fossil fuels originally come from? sunlight
What is an advantage of wind power? It is a renewable energy resource
Which of the following is a good way to reduce the use of fossil fuels? Walking instead of going in a car
Which of these is a fossil fuel? Coal
When talking about fuels what does finite mean? will run out
What is an explanation for global warming? Greenhouse effect
What gas causes acid rain? Sulfur dioxide
What is a disadvantage of nuclear fuels? Disposing of waste
What is a disadvantage of geothermal energy? it can only be used in certain places
An object at rest on top of a shelf is likely to have: Gravitational potential energy
Batteries are stores of: chemical energy
Energy is usefully transferred from a personal audio player as: Sound energy
Which is likely to contain the most thermal energy? A red hot horseshoe
Which is likely to have the highest temperature? a spark from a fire work
Which type of energy transfer requires particles? Conduction
Thermal energy is transferred by conduction from: The hot end to the cold end
Which type of energy transfer can occur though a vacuum? Radiation
What type of energy is stored in a wind up toy? Elastic potential
What type of diagram shows the efficiency of energy transfer? Sankey
Created by: 15evanst