| All things Heat | ||
| #1 | the energy of motion | What is kinetic energy? |
| #2 | the transfer of thermal energy from a warmer to cooler object | What is heat? |
| #3 | The AVERAGE kinetic energy that the particles in a substance has | What is temperature? |
| #4 | The TOTAL kinetic energy that the particles in a substance has | What is thermal energy? |
| #5 | faster moving particles will have _______ kinetic energy and therefore a _______ temperature than slower moving particles | more; higher |
| Methods of Heat Transfer | ||
| #1 | The transfer of heat by direct contact between particles | What is conduction? |
| #2 | The transfer of heat through empty space by electromagnetic waves | What is radiation? |
| #3 | The transfer of heat by warmer fluids rising and cooler fluids sinking | What is convection? |
| #4 | Explain how conduction works | when substances come in contact with each other, the particles bump into each other giving away some thermal energy |
| #5 | Explain how convection works | fluids close to the heat source warm up, the particles spread out, becoming less dense, fluid rises; cooler fluid is less dense so it sinks |
| Characteristics of Heat | ||
| #1 | Heat always moves from _________ to __________ | warmer to cooler |
| #2 | T or F: The temperature of a substance depends on how much of the substance you have | False |
| #3 | T or F: The thermal energy of a substance depends on how much of the substance you have | True |
| #4 | In which phases of matter do the particles have kinetic energy? | All phases |
| #5 | What are the 3 scales for measuring temperature? | Fahrenheit, Celsius, and Kelvin |
| Materials for Heat Transfer | ||
| #1 | materials that transfer thermal energy well | What are conductors? |
| #2 | materials that do NOT transfer thermal energy well | What are insulators? |
| #3 | Give two examples of conductors | glass, metal, tile |
| #4 | Give three examples of insulators | various answers |
| #5 | What are insulators used for? | use to prevent or slow down the transfer of thermal energy |
| Examples of Heat Transfer | ||
| #1 | you burn your hand when you touch the metal end of a curling iron | conduction |
| #2 | a heater located in the deep ened warms an entire swimming pool | convection |
| #3 | the sunlight shines directly on you through the window making you feel hot | radiation |
| #4 | Your feet feel cold as you walk onto the tile floor in your bathroom | conduction |
| #5 | when you sit facing a campfire, your face feels warm but your back feels cold | radiation |
| Final Question | |
| Which will have more thermal energy: an ice sculpture or a burning match? Explain | ice sculpture; even though it has a lower temperature, it has A LOT more particles than a match has. and thermal energy is TOTAL kinetice energy |