What is the time-rate at which a body changes its position; defined
as displacement divided by the time of travel
100
What is
the smallest unit of a chemical element that can still retain
What is atom
100
What is unit of energy; the amount of heat needed to raise one gram
of water one degree Celsius at standard atmospheric
pressure
What is calorie
100
What is an interconnection of electrical elements forming a
complete path for the flow of current
What is circuit
100
What is a set of objects, organisms, or different parts acting to form
a whole
What is system
200
What is
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
200
What is a stable elementary particle that is negatively charged and
orbits the nucleus of an atom
What is electron
200
What is the transmission of heat through a medium and without the
motion of the medium
What is conduction
200
What is one of the fundamental states of matter in which molecules
do not have fixed volume or shape
What is gas
200
What is the event, condition, or factor that can be changed or
controlled in order to study or test a hypothesis in a
scientific experiment.
What is variable
300
What is
force of air on moving objects
What is air resistance
300
What is a substance that cannot be reduced to a simpler substance
by chemical means
What is element
300
What is a form of energy resulting from the temperature difference between a system and its surroundings
What is heat
300
What is 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
What is a procedure that is carried out in order to observe a
response caused by a stimulus; not a complete experiment
What is investigation
400
What is
in any periodic function (e.g., a wave) the maximum
absolute variation of the function
What is amplitude
400
What is a particle, object, or system that lacks a net charge
What is neutral
400
What is a quantity that describes the capacity to do work; a source
of usable power
What is energy
400
What is
a type of simple machine; consists of a rigid bar that pivots
about a fulcrum, used to transmit and enhance power or motion
What is lever
400
What is 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
500
What is
a force that opposes the relative motion of two material
surfaces in contact with one another
What is friction
500
What is a subatomic particle having zero charge, found in the
nucleus of an atom
What is nuetron
500
What is a measure of randomness or disorder of a closed system
What is entropy
500
What is one of the fundamental states of matter with a definite
volume but no definite shape
What is liquid
500
What is factor being measured or observed in an experiment