What is a stable elementary particle that is negatively charged and orbits the nucleus of an atom
What is electron
100
What is the amount of matter an object contains
What is mass
100
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
emission of energy in the form of rays or waves
What is radiation
100
factor being measured or observed in an experiment
What is dependent variable
200
What is a particle, object, or system that lacks a net charge
What is neutral
200
What is a change in direction of a wave that occurs as it passes from one medium to a different density
What is refraction
200
the peak or highest point on a wave
What is crest
200
a form of energy resulting from the temperature difference
between a system and its surroundings
What is heat
200
the factor that is changed in an experiment in order to study
changes in the dependent variable
What is independent variable
300
What is a subatomic particle having zero charge, found in the nucleus of an atom
What is atom
300
What is a 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
300
force of air on moving objects
What is air resistance
300
a quantity that describes the capacity to do work; a source
of usable power
What is energy
300
a procedure that is carried out and repeated under
controlled conditions in order to discover, demonstrate, or
test a hypothesis; includes all components of the scientific method
What is experiment
400
What is a substance that cannot be reduced to a simpler substance by chemical means
What is element
400
What is a type of simple machine that consists of a rod driven through the center of a cylinder that is allowed to rotate freely, yielding a mechanical advantage equal to the cylinder’s diameter
What is wheel and axel
400
a force that opposes the relative motion of two material
surfaces in contact with one another
What is friction
400
a change of energy from one form to another (e.g.,
mechanical to electrical, solar to electrical)
What is energy transfer
400
a procedure that is carried out in order to observe a
response caused by a stimulus; not a complete experiment
What is investigation
500
What is a subatomic particle having zero charge, found in the nucleus of an atom
What is neutron
500
What is a measure of the amount of space an object takes up; also the loudness of a sound or signal
What is volume
500
the change in direction of a wave caused by passing by an obstacle or traveling through an opening
What is diffraction
500
a fundamental principle stating energy cannot be created
nor destroyed but only changed from one form to another
What is conservation of energy
500
a plan of inquiry that uses science process skills as a tool to
gather, organize, analyze, and communicate information