| A | B |
|---|
| Heat | -a form of energy caused by internal motion of molecules of matter. |
| Molecules | -tiny particles of matter that is always in motion. |
| Energy | -the movement of molecules |
| Matter | -many particles pushed together to make something like a tree or a rock. |
| Heat Transfer | -movement of heat from a warmer object to anyother. |
| Conduction | -heat transfer through a substance or from one substance to anotherby direct contact of molecules. |
| Radiation | -heat transfer through space. |
| Kinetic Enery | -energy that a moving object has due to its motion; energy of motion |
| Convection | -heat transfer in liquids and gases by means of covection currents. |
| Thermometrer | -instrument used to measure heat. |
| Celsious Scale | -metric temperature scale at which water freezes at o*C and boils at 100*C. |
| Kelvin Scale | -metric temperature scale at which 0K represents absolute zero and, the freezing point is 273K, and the boiling point is 373K. |
| Absolute Zero | -lowest posseble temperature. |
| Calories | -unit used to measue heat. |
| Specific Heat | -ability of a substance to absorb heat energy. |
| Calorimerer | -instrument used to measure heat given off in chemical reactions |
| Phase Change | -change of matterfrom one phase (liquid/solid/gas) to another. |
| Heat of Fusion | -amount of heat needed to change a substance from a solid to liquid |
| Heat of Vaporization | -amount of heat needed to change a substance from liquid to a gas. |
| -Freezing Point | -temperature at which a substance changes from a liquid to a solid. |
| Melting Point | -temperature at which a substance changes from a solid to a liquid |
| Boiling Point | -temperature at which a substance changes from a liquid to a gas. |
| Thermal Expansion | -expansion of a substance due to heat. |
| Thermastat | -device that helps control the temperature in a indoor area or a applience |
| Bimetallic Strip | -strip consisting of two different metals that expand at different rates and cause the strip to bend. |
| Medium | -material through which a mechanical wave travels. |
| Mechanical Waves | -wave that disturbs the medium. |
| Electromagnetic Waves | -wave that consists of electric and magnetic fields, and doesn't requir a medium. |
| Amplitude | -greatest distance from resting position of the wave. |
| Wavelength | -distance between two consecutive simalar points of a wave. |
| Frequency | -number of waves that pass a certain point in a given amount of time. |
| Atom | -building blocks of matter. |
| Electromagnetic Spectrum | -arrangement of electromagnetic waves in order of wavelength and spectrom |
| Radio Waves | -electromagnetic waves with the longest wavelegths and lowest frequincys in the electromagnetic spectrom |
| Modulation | -variation; in particular, in the amplitude. |
| Microwaves | -high-frequincy radio waves used primaraly for communication. |
| Radar | -use of short-wavelength microwave to locate objects and moniter speed. |
| Infrarred Rays | -electromagnetic waves in the frequency range just below visable light, felt as heat. |
| Visable Light | -colours of the spectrum that can be seen. |
| Ultraviolet Ray | -electromagnetic wave in the frequency region just above visable light |
| X-ray | -electromagnetic wave in the frequency region just above ultraviolet waves. |
| Gamma Ray | -electromagnetic wave with the highest frequency and shortest wavelegths in the electromagnetic spectrum. |
| Luminous Object | -objectt hat is capable of giving off its own light. |
| Illuninate Object | -object that can be seen because it is light-up. |
| Incandescent Light | -light produced from heat. |
| Fluorescent Light | -light produced by bombarding molecules of gas in a tube. |
| Neon Lights | -cool light producedwhen electrons flow through a glass tube filled with gas. |
| Photon | -particle carrying energy that makes up light. |
| Photoelectric Effect | -Process by which light can be used to knock electrons out of metal; can only be explained using the particle nature of light. |
| Regular Reflection | -bouncing back light from a smooth even surface. |
| Diffuse Reflection | -bouncing back of light from a uneven surface. |
| Concave Mirror | -mirror with a surface that curves inward. |
| Convex Mirror | -mirror with a surface that curves outward. |
| Focal Point | -location at which light rays are reflected from a mirror, meet. |
| Plane Mirror | -mirror with flat surface. |
| Index of Reflection | -the comparison of the speed of light in the air with the speed in a certain material. |
| Concave Lens | -lens that is thicker at the end then in the middle. |
| Convex Mirror | -lens thet is thicker at the middle then at the ends. |
| Lens | -a lens is any transparent material that refracts light. |
| Transparent | -material through which light is transmitted easily. |
| Opaque | -material that doesn't transmit light. |
| Polarized Light | -light in which all waves are vibrating in the same direction. |
