Energy
What is the energy of motion?
Kinetic Energy
What heat transfer requires direct contact?
Conduction
What are the three main fossil fuels?
Coal, oil, & natural gas
Give an example of carbon emissions
Cow Farts- Methane
Car Exhaust- Carbon Dioxide
What are the advantages to solar & wind energy?
solar- natural, constant supply, no pollution
wind- naturally occurring, constant supply (in most areas)
The higher an object is off the ground, the higher it's __________ ________________ _________
Gravitational Potential Energy
Define Thermal Energy
Total energy of motion in the particles of a substance
Resources that can be replaced or recycled within a lifetime are called
Renewable
When land is cleared and the soil turns dry and rocky it's called what? (plants can't grow)
Desertification
What are the disadvantages to hydropower? (building a dam)
-ruins habitats
-changes the natural flow of water
-expensive
-only available in certain areas
-requires large body of freshwater
Two factors that affect KE are?
Mass & Speed
Which type of heat transfer only occurs through empty space?
Radiation
______________ _______________ consist of an electric field and a magnetic field.
Electromagnetic Waves
THE CAREFUL USE OF RESOURCES WITH THE GOAL OF REDUCING DAMAGE TO THE ENVIRONMENT
Conservation
What type of energy comes from Earth's interior?
Geothermal
What is the Law of Conservation of Energy?
(you must state it correctly and entirely)
Energy cannot be created or destroyed only transformed or transferred.
Why is the sky blue?
Gas molecules scatter shorter wavelengths of blue & violet
Anything in nature that is useful to humans is called
Natural Resource
INTRODUCTION OF HARMFUL WASTE PRODUCTS, CHEMICALS AND SUBSTANCES INTO THE ENVIRONMENT
Pollution
Corn being turned into alcohol is an example of what type of alternative energy resource?
Biomass
What happens to the amount of energy while you ride a rollercoaster? (Thunderhead at Dollywood)
It stays the same (the amount doesn't change it just transforms to different types ex. PE to KE)
What type of heat transfer causes ocean currents & wind?
Convection
Gases in the atmosphere trap some of the heat near Earth's surface, while some heat escapes into space.
What is this called?
Greenhouse Effect
Define Sustainability
It means using Earth's resources responsibly, reducing waste, and creating a balance between human activities and the natural world, ensuring they can continue productively for a long time.
Name all 5 examples of Alternative energy sources
Hydroelectric, solar, wind, geothermal, & Biomass