Types of Energy
When a ball sits at the top of a hill it has_________ energy.
potential energy
Energy is the ability to...
do work
This is the world's main source of energy.
The sun
Recycling
Organizing our waste so that it can be used again.
Reducing the use of this source of energy is important because it has been linked to climate change and global warming. What is the energy source, what is it's by-product called, and how does it contribute to global warming?
When Fossil Fuels are burned carbon dioxide is released and creates a greenhouse effect trapping heat on the earth under the carbon blanket.
When a car drives down the street it has _________ energy.
kinetic
Einstein discovered this 1st law of energy
Energy cannot be created nor destroyed, only transformed.
Energy that cannot be replenished in a lifetime is considered…
Non-renewable
Reducing
Using less resources or consuming less things.
BONUS: Give an example!
What is the EnerGuide on household appliances? Why is it important?
It is a label that explains how energy efficient the appliance is. It gives a comparison as to how energy efficient that model is versus comparable models.
Mechanical or kinetic energy is found in things that...
move
Electrical energy comes from many.....
different sources
Wind, solar, and hydro (water) energy are examples of…
Renewable
Pollution
Any harmful addition to the natural environment.
What is insulation? Why is it important?
Materials that keep heat in or out of a certain space. We use insulation in the walls of our home to keep the heat in or out depending on the season.
Batteries and food are examples of ________ energy.
chemical
True or False: Renewable energy sources create no environmental pollution.
False. Pollution can still be created by renewable source of energy such as hydro dams because foreign objects are being intoucd to the environment which disrupt natural habitats.
Energy is converted into electricity in this place.
A power plant
Fossil Fuels
Coal, oil, natural gas are examples – convenient form of energy. Mainly used in vehicles.
What are 5 ways we can conserve energy in our lives?
We can use the 3 R’s: reducing, reuse, recycle.
- Reducing the amount of energy we consume by using less electronics.
- Reducing the products we consume by buying less.
- Reduce the amount we drive by walking or biking more.
- Reuse older items instead of buying new things.
- Reuse by giving or selling items we have to other people so they can be reused.
- Recycling so that our waste can be reused in factories to be made into new items.
- We can also choose energy efficient appliances, lightbulbs, vehicles to cut down on our energy use.
This type of energy is created by extreme heat used to boil water and create steam. The steam turns turbines to generate electricity.
nuclear
What did Einstein mean when he said energy cannot be created nor destroyed, only transformed?
When we use energy, it is not gone, it just transforms into another form of energy. Example: When we eat, we burn off the energy making our bodies warm which is heat energy.
What is the current drawbacks of most renewable energy sources?
Many are costly and unreliable.
Hydro Power
Using water to get power – requires building a dam (big wall) that blocks water and then allows a small tunnel of water through that spins a turbine.
What are some of the drawbacks and dangers of using non-renewable energy?
Non-renewable energy sources like fossil fuels are dangerous for our environment because when we use them, the by-product is harmful pollution. The burning of oil, coal, and natural gas emits carbon dioxide into the air causing global warming. When too much carbon is released into our atmosphere, the carbon blanket gets thick and doesn’t allow the Sun’s heat to escape. This warms our planet – melting glaciers, rising sea levels, and causing extreme weather.