TYPES OF ENERGY
What kind of energy is stored in food or batteries?
Chemical energy
What is the flow of electrons through a wire called?
Electritcity
Where does solar energy come from?
The suns rays
What makes wind move?
Warm air rises and cool air sinks, causing movement
What is the process of splitting atoms called?
Nuclear fission
What type of energy is transferred by light waves or radiation?
Radiant energy
What are the positive and negative ends of a battery called?
Cathode (+) and Anode (–)
What do solar panels convert sunlight into?
Electricity
What does wind spin to make electricity?
A turbine
What atom is split in nuclear energy?
Uranium
True or False: Thermal energy moves from a cooler object to a hotter object.
FALSE
What type of energy transformation happens in a light bulb?
Electrical → Light (Radiant) + Thermal
What are two benefits of solar energy?
Renewable, no greenhouse gases
What type of energy does falling water have behind a dam?
Potential energy
Name one advantage of nuclear power.
No greenhouse gases / works day and night / uses less land
What two forms of energy are part of mechanical energy?
In a circuit, what happens when the switch is turned off?
The circuit opens and the current stops
What is one drawback of solar energy?
Only works when it’s sunny / costly to install / batteries create waste
What are two drawbacks of wind or hydro energy?
Hurts wildlife / noise / changes ecosystems / affects fish
Name one disadvantage of nuclear power.
Radioactive waste / accidents / harmful pollution
What law states that energy cannot be created or destroyed, only transformed?
Law of Conservation of Energy
What kind of energy transformation happens in a fan or motor?
Electrical → Mechanical
Explain how solar energy transforms into electricity
Sunlight knocks electrons loose in solar cells, creating an electrical circuit
What is the final step in hydro energy creation?
Spinning turbine powers generator → creates electricity
Which nuclear accident caused the most damage and evacuations?
Chernobyl (1986)