Question | Answer |
What's energy? | A quantity that describes the capacity to do work; a source of usable power. |
What's heat? | A form of energy resulting from the temperature difference between a system and its surroundings. |
The energy possessed by a body because of its motion is what kind of energy? | Kinetic Energy. |
The bouncing off or turning back of light, sound or heat from a surface is? | Reflection. |
What's refraction? | A change in the direction of a wave that occurs as it passes from one medium to another of different densiy. |
In any periodic function, the maximum absolute variation of the function is? | Amplitude. |
What's conduction? | The transmission of heat through a medium and without the motion of the medium. |
A fundamental principle stating energy cannot be created nor destroyed but only changed from one form to another is? | The Conservation of Energy. |
What is the crest of a wave? | The peak or highest point of the wave. |
What's efficiency? | The relative effectiveness of a system or device determined by comparing output to input. |
Entropy is? | A measure of randomness or disorder of a closed system. |
Frequency is the number of? | Cycles or waves per unit time. |
Emission of energy in the form of rays or waves is? | Radiation. |
What's thermal energy? | Internal energy found by adding the kinetic energy of particles making up a substance. |
The through of the wave is? | The lowest point of the wave. |
Vibration occurs when? | A repetitive movement around an equilibrium point. |
What is wavelength? | The distance between crests of a wave. |