Waid Academy Science Energy: Energy Changes & Energy Matters
What is the energy change when a candle burns? 1. Chemical to light 2. Light to heat 3. Chemical to heat and light 4. Potential to heat and light 15
What is the energy change when you use a radio? 1. Kinetic to sound 2. Electrical to sound 3. Electrical to potential 4. Chemical to heat 15
Which of the following would have a change from potential to sound energy? 1. Bursting a blown up balloon 2. Clapping hands together 3. Burning coal 4. Rubbing a finger on the bench 10
Which energy converter changes kinetic energy into electrical energy? 1. Bulb 2. Wire 3. Motor 4. Dynamo 15
What energy conversion does a motor carry out? 1. Heat to electrical 2. Electrical to kinetic 3. Electrical to sound 4. Heat to sound 10
Which of the following is NOT a fossil fuel? 1. Coal 2. Oil 3. Gas 4. Nuclear 10
Why can’t we use fossil fuels for much longer? They are in limited supply 2. They are in unlimited supply
Name two forms of renewable energy 1.Wind and nuclear 2.Solar and water 3.Solar and hydroelectric 4.Wave and nuclear 10
How could you save energy in your home? 1. Switch the TV into stand-by mode 2. Put in single glazed windows 3. Use a thermostat 4. Leave the lights on 15
Arrange these pictures to make a food chain 1. Human Grass Cow Sun 2. Sun Cow Grass Human 3. Human Cow Grass Sun 4. Sun Grass Cow Human 10
What do the arrows mean in a food chain? 1. Heat transfer 2. Energy transfer Sun Grass Cow Human 10
Where does all energy on Earth come from? 1. Sun 2. Grass 3. Cows 4. Humans 10