A force that opposes the relative motion of two material
surfaces in contact with one another.
What is a proton
100
heat transfer in a gas or liquid by the circulation of currents
from one region to another.
What is convection
100
A physical change that occurs when matter changes to another state.
What is a change of state
100
A factor being measured or observed in an experiment.
What is a dependent variable
200
The peak or highest point on a wave.
What is crest
200
The amount of heat needed to raise one gram
of water one degree Celsius at standard atmospheric
pressure.
What is a calorie
200
The emission and propagation of the entire range of the
electromagnetic spectrum including: gamma rays, x-rays,
ultraviolet radiation, visible light, microwaves, and radio
waves.
What is electromagnet radiation
200
a reaction or a change in a substance produced by chemical means that results in producing a different chemical.
What is chemical energy
200
The factor that is changed in an experiment in order to study changes in the dependent variable.
What is a independent variable
300
The change in direction of a wave caused by passing by an obstacle or traveling through an opening.
What is deffraction
300
The process of changing from a gas to a
liquid
What is condensation
300
A change of energy from one form to another.
What is energy transfer
300
an interconnection of electrical elements forming a complete path for the flow of current.
What is a circuit
300
A repetitive movement around an equilibrium point.
What is vibration
400
The number of cycles or waves per unit time.
What is frecuency
400
The transmission of heat through a medium and without the
motion of the medium.
What is conduction
400
A measure of randomness or disorder of a closed system.
What is entropy
400
a substance made up of a combination of two or more elements held together by chemical bonds that cannot be separated by physical means.
What is a compound
400
A measure of the amount of space an object takes up; also the loudness of a sound or signal.
What is volume
500
A force that opposes the relative motion of two material surfaces in contact with one another.
What is friction
500
A fundamental principle stating energy cannot be created
nor destroyed but only changed from one form to another.
What is the conversation of energy
500
The energy possessed by a body because of its motion.
What is kinetic energy
500
concentration of matter of an object; number of individuals in the same species that live in a given area; the mass per unit volume of a substance in a given area.
What is density
500
A type of simple machine that consist of an inclined plane wrapped around a cylinder.