The rate of change in velocity, usually expressed in meters per second; involves an increase or decrease in speed and/or a change in direction
What is acceleration?
100
The smallest unit of a chemical element that can still retain the properties of that element.
What is a atom?
100
A unit of energy; the amount of heat needed to raise one gram of water one degree Celsius at standard atmospheric pressure.
What is a calorie?
100
A physical change that occurs when matter changes to another state (i.e., liquid, gas, or solid)
What is change of state?
100
A factor being measured or observed in an experiment
What is dependent variable?
200
The force of air on moving objects.
What is air resistance?
200
A stable elementary particle that is negatively charged and orbits the nucleus of an atom
What is a electron?
200
The process of changing from a gas (i.e., water vapor) to a liquid (i.e., dew); the act of making more dense or compact
What is condensation?
200
A physical change that occurs when matter changes to another state (i.e., liquid, gas, or solid)
What is circuit?
200
A variable whose variation does not depend on that of another.
What is independent variable?
300
Any periodic function the maximum absolute variation of the function
What is amplitude?
300
A substance that cannot be reduced to a simpler substance by chemical means
What is a element?
300
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 electromagnetic radiation?
300
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?
300
The principles and procedures for the systematic pursuit of knowledge involving the recognition and formulation of a problem, the collection of data through observation and experiment, and the formulation and testing of hypotheses.
What is scientific method?
400
The peak or highest point on a wave.
What is a crest?
400
A subatomic particle of about the same mass as a proton but without an electric charge
What is a neutron?
400
A quantity that describes the capacity to do work; a source of usable power
What is energy?
400
A reaction or a change in a substance produced by chemical means that results in producing a different chemical
What is chemical change?
400
Scientific investigation is a quest to find the answer to a question using the scientific method.
What is investigation?
500
The change in direction of a wave caused by passing by an obstacle or traveling through an opening.
What is diffraction?
500
A stable subatomic particle occurring in all atomic nuclei
What is a proton?
500
A change of energy from one form to another mechanical to electrical, solar to electrical)
What is energy transfer?
500
The 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