Help
Options
Didn't know it?
click below
click below
Knew it?
click below
click below
Don't Know
Remaining cards (0)
Know
retry
shuffle
restart
0:00
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
Normal Size Small Size show me how
Unit 4
Physical Science Unit 4: Energy and Heat
| Term | Definition |
|---|---|
| Chemical Energy | Energy stored in the chemical bonds that hold molecules together. Examples: batteries, food |
| Electrical Energy | The energy of moving electrons. Moves through wires. Examples: electric guitar, power grid |
| Mechanical Energy | The energy of an object due to its motion or position. (The sum of kinetic energy + potential energy). Examples: fan blowing air, basketball bouncing, person running |
| Sound Energy | Energy in the form of sound waves. Due to the vibration of particles. Examples: playing an instrument, engine, speaker |
| Electromagnetic Energy | Energy in the form of electromagnetic waves. Can travel through empty space. Examples: light, microwaves, x-rays |
| Light Energy | Energy is the form of electromagnetic waves, specifically visible light waves. Examples: the sun, lamp |
| Thermal Energy | Due to the motion of molecules in an object. Examples: geothermal energy, body heat |
| Potential Energy | Stored energy |
| Kinetic Energy | Energy in motion |
| Nuclear Energy | When the nuclei of atoms break apart or join together. Examples: what powers the sun, hydrogen bomb |
| Elastic Energy | Mechanical energy stored in elastic objects. Examples: rubber band, balloon |
| Energy | The ability to do work or cause change |
| Energy Transformation | Takes place when energy changes from one form to another |
| Law of Conservation of Energy | States that energy can neither be created nor destroyed |
| Efficiency | The ratio of useful output energy to input energy. Percent Efficiency = Output NG / Input NG x100% |
| Kinetic Theory of Matter | States that ALL particles that make up matter are constantly in motion |
| Temperature | A measure of the average kinetic energy of all the particles in an object |
| Degree | The units of a temperature scale |
| Thermometer | An instrument used to measure temperature |
| Thermal Energy | The total kinetic energy of all the particles of a substance |
| Heat | The energy transferred from an object at higher temperature to an object at lower temperature |
| Calorie | The amount of energy needed to raise 1 g of water by 1 ºC |
| Conduction | The transfer of energy as heat through materials in direct contact. Examples) the handle of a pot getting hot, ice cools down your hand |
| Conductor | A material that transfers heat very well |
| Insulator | A material that’s a poor conductor of heat |
| Convection | The movement of matter due to differences in density caused by temperature variations. Examples) water boiling, hot-air balloon, ocean circulation |
| Radiation | The transfer of energy by electromagnetic waves. Examples) getting a tan or sunburned, heat lamps, flames from a fire heating the air |
Created by:
Ms. Wilhjelm
Popular Physical Science sets