Busy. Please wait.

show password
Forgot Password?

Don't have an account?  Sign up 

Username is available taken
show password


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.
Didn't know it?
click below
Knew it?
click below
Don't know
Remaining cards (0)
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

9 Week Exam Review


Kinetic energy Energy of motion
Potential energy Stored energy or energy of position
Gravitational Potential Energy The energy an object has because of its position in a gravitational field. It is higher than its original position.
Law of Conservation of Energy Energy can neither be created or destroyed it just changes form
Thermal Energy The internal energy in substances. Energy of moving or vibrating molecules within substances. Heat energy.
Chemical Energy Energy that is stored in the chemical composition of matter.
Electrical Energy Energy of moving electrons through an electric charge.
Energy transformations The change of energy from one form to another.
Radiant Energy Energy that travels by waves or particles, particularly electromagnetic radiation such as heat or x-rays.
Conduction The process by which energy is transferred from a warmer object to a cooler object by means of physical contact. (Heat through direct touch)
Convection A process by which energy is transferred in gases and liquids, occurring when a warmer, less dense area of gas or liquid is pushed up by a cooler, more dense area of the gas or liquid. (Heat through a fluid)
Radiation Energy that travels across distances in the forms of electromagnetic waves. (Heat through open space)
Thermal equilibrium When two objects are placed in contact, heat is transferred from one to the other until they reach the same temperature.
Coal A black or dark-brown combustible mineral substance consisting of carbonized vegetable matter, used as a fuel. Non-renewable, pollutes the Earth, but is cheap.
Oil A smooth, thick liquid that is used as a fuel and for making the parts of machines move smoothly. Non-renewable, pollutes the Earth, but is cheap.
Natural gas Flammable gas, consisting largely of methane and other hydrocarbons, occurring naturally underground. Non-renewable, pollutes the Earth, but is cheap.
Nuclear power The energy released during nuclear fission or fusion. Non-renewable, is cheaper than other alternatives, but can be very dangerous.
Biomass Organic matter used as a fuel, especially in a power station for the generation of electricity. Renewable but can be expensive to mine and store.
Hydropower Hydroelectric power. Renewable, abundant where there is water, but can be expensive to build.
Geothermal Thermal energy generated and stored in the Earth. Renewable, clean energy, but can cause earthquakes.
Solar Radiant energy emitted by the sun. Renewable, abundant, but can be expensive to build and store.
Sound Energy The movement of energy through objects or substances in longitudinal (compression) waves.
Mechanical Energy The movement of objects or substances from one place to another.
Conduction, Convection, or Radiation: A hot air balloon rising through the air. Convection
Conduction, Convection, or Radiation: Feeling the warmth from the heater in your car with out touching the vents. Radiation
Conduction, Convection, or Radiation: A pot being heated on a stove top. Conduction
Conduction, Convection, or Radiation: A spoon warming up in a cup of hot chocolate. Conduction
Conduction, Convection, or Radiation: The concrete heating from the sun. Radiation
Conduction, Convection, or Radiation: Water boiling causing bubbles to rise and fall. Convection
Conduction, Convection, or Radiation: A cool front coming in, pushing warm air (less dense air) up into the sky. Convection
Conduction, Convection, or Radiation: A heat lamp melting candy without touching it. Radiation
Balanced Forces Two forces acting in opposite directions on an object, and equal in size.
Unbalanced Forces A force that changes the position, speed or direction of the object to which it is applied.
Force A push or a pull.
Newton The unit of force.
Wind energy Describes the process by which wind is used to generate electricity. Renewable, abundant, but can be harmful to wildlife.
Motion An object moving or being moved.
Net Force The overall (total) forces acting on an object.
Created by: DDenney



Use these flashcards to help memorize information. Look at the large card and try to recall what is on the other side. Then click the card to flip it. If you knew the answer, click the green Know box. Otherwise, click the red Don't know box.

When you've placed seven or more cards in the Don't know box, click "retry" to try those cards again.

If you've accidentally put the card in the wrong box, just click on the card to take it out of the box.

You can also use your keyboard to move the cards as follows:

If you are logged in to your account, this website will remember which cards you know and don't know so that they are in the same box the next time you log in.

When you need a break, try one of the other activities listed below the flashcards like Matching, Snowman, or Hungry Bug. Although it may feel like you're playing a game, your brain is still making more connections with the information to help you out.

To see how well you know the information, try the Quiz or Test activity.

Pass complete!

"Know" box contains:
Time elapsed:
restart all cards