Busy. Please wait.
or

show password
Forgot Password?

Don't have an account?  Sign up 
or

Username is available taken
show password

why


Make sure to remember your password. If you forget it there is no way for StudyStack to send you a reset link. You would need to create a new account.
We do not share your email address with others. It is only used to allow you to reset your password. For details read our Privacy Policy and Terms of Service.


Already a StudyStack user? Log In

Reset Password
Enter the associated with your account, and we'll email you a link to reset your password.
Don't know
Know
remaining cards
Save
0:01
To flip the current card, click it or press the Spacebar key.  To move the current card to one of the three colored boxes, click on the box.  You may also press the UP ARROW key to move the card to the "Know" box, the DOWN ARROW key to move the card to the "Don't know" box, or the RIGHT ARROW key to move the card to the Remaining box.  You may also click on the card displayed in any of the three boxes to bring that card back to the center.

Pass complete!

"Know" box contains:
Time elapsed:
Retries:
restart all cards
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.

  Normal Size     Small Size show me how

Energy Quiz

QuestionAnswer
What does "energy efficient" mean? Using less energy, and doing the same as another item.
Name 3 ways to save energy. Answers may vary but some include: Insulating the walls, and ceiling, use incandescent light bulbs, and change all appliances to energy efficient ones.
If a brick is sitting on a table, how much potential energy does it have? How much kinetic energy? 100 J potential, 0 J kinetic.
When energy is transferred from object to object, did the energy keep the same form, the whole time? If not, why? No, some of the energy is "lost" in the transfer to heat, sound, and light.
If you are biking on a hill, where would you have the most potential energy? Where would you have the most kinetic energy? You would have the most potential energy on the very top on the hill. You would have the most kinetic energy right after the hill.
You hear someone say that "generators make energy". Is this true? No, energy is never lost or created. Energy can change it's form, but never lost or destroyed.
What energy is called the "graveyard of kinetic energy"? Why? Thermal energy because whenever kinetic energy is used, friction makes heat release thermal energy.
Why is the air close to the fridge warm? The refrigerator lets out it's hot air, to the space around it.
What happens if an air conditioner is used in a house that is not well insulated and sealed? The cold air would escape the house, because their would be nothing keeping it in.
Name 3 renewable energy sources. Answers might include: biomass, geothermal, hydroelectric, solar, tidal and wind energy.
Name 2 nonrenewable energy sources. Fossil fuels and nuclear energy.
Using reactivity, which combination of metals would be the best battery? Two metals far away in reactivity, because the farther away, the more energy. Example: magnesium and copper.
What energy efficient features do you have, or could have? Answers might include: better insulation, better windows, better heating and cooling equipment, better water heaters, and better lighting and appliances.
Potential energy Energy that is stored, and has not been used.
Gravitational potential energy When potential energy is due to an object's position above the earth.
Kinetic energy When an object is moving.
Heat Movement of thermal energy from hot to cold.
Temperature The measure of the average energy per molecule of a substance.
Conduction The process by which energy is transferred directly when materials touch.
Insulator Materials the are poor conductors.
Renewable resource One that has a continuing supply, such as sunlight, water, wind, and biomass.
Nonrenewable resource One that has limited supply, such as coal, natural gas, and petroleum.
Electrolyte A material capable of conducting electricity that allows current to flow as it is released from a reaction.
Created by: ifocht078