What type of energy is stored in food?
Chemical energy
What energy transformation happens in a toaster?
Electrical to thermal energy
Which type of energy is stored energy?
Potential energy
What does the Law of Conservation of Energy state?
Energy cannot be created or destroyed, only transformed
What type of energy does a microwave oven use?
Microwave radiation (a form of electromagnetic energy)
What type of energy powers a flashlight?
Electrical energy
What happens when you eat food and then run?
Chemical to kinetic energy
Which type of energy is motion?
Kinetic energy
Can energy be destroyed?
No
What energy transformation occurs in a wind turbine?
Kinetic to electrical energy
What kind of energy is stored in stretched rubber bands?
Elastic potential energy
What energy change happens in a battery-powered radio?
Chemical to electrical to sound energy
Is a ball sitting on a hill potential or kinetic energy?
Potential energy
What happens to energy in a closed system?
It remains constant
Why does a metal spoon in hot soup get hot?
Thermal energy transfers by conduction
What is thermal energy?
The energy of moving particles that creates heat
How does a solar panel transform energy?
Light energy to electrical energy
When does a swing have the most kinetic energy?
At the lowest point of its swing
Why doesn’t a ball bounce forever?
Some energy is lost as heat and sound
How do humans use fossil fuels for energy?
Burning them to release thermal and mechanical energy
What are the 2 main types of energy?
Potential and kinetic energy
Explain the energy transformations in a car engine.
Chemical to thermal to kinetic energy
How can energy change between potential and kinetic?
As an object moves, it shifts between the two forms
How is energy lost in most systems?
As heat due to friction
Name one way to reduce energy use at home.
Turn off lights when not in use