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B11 science 4/1/2011
Question | Answer |
---|---|
kinetic energy | increases as mass increases or decreases as mass decreases |
Wind turbines convert this kind of energy into electrical energy | kinetic |
radiation | transfer of heat by electromagnetic waves |
thermal energy | the sum of the kinetic and potential energy of the molecules in a substance. |
conduction | the transfer of heat by particles colliding with each other. |
conductor | a substance that conducts heat |
convection | transfer of heat through movement of a heat or a liquid, this type of energy would be used to heat a pot on a stove. Wind is a form of natural convection |
heat | thermal energy transferred between 2 objects because of the difference in temerature |
Water has a higher specific temperature than clay. What does this mean? | Water will take longer to heat up. Water will also take longer to cool down. |
specific heat | the ammount of heat to raise 1` kg of a substnace 1 degree C |
temperature | the average kinetic energy of the particles of a substance. |
engine | converts thermal energy into mechanical energy |
absolute zero | part of the Kelvin Scale |
Celsius Scale | Temperature scale with 100 degrees between freezing and boiling of water |
Fahrenheit Scale | Temperature scale with 180 degrees between freezing and boiling of water |
thermometer | an instrument used to measure temperature, workes beacue liquids expand when they are heated |
external combustion engine | fuel is burned outside the engine. A Steam engine is an example. |
internal combustion engine | an engine that burns fuel in a chamber inside the engine |
insulator | a material through which heat does not easily flow. |
thermal pollution | a body of water warms from adding water. |
How does heat move? | From hotter to cooler substances |
These are usually good conductors | metals |
A poor conductor will be a good | insulator |
radient energy is | light energy |