What is the rate of change in velocity which involves an increase or decrease in speed and/or a change in direction
100
element
What is a substance that cannot be reduced to a simpler substance by chemical means
100
radiation
What is emission of energy in the forms of rays or waves
100
lever
What is a type of simple machine that consist of a rigid bar that pivots about a fulcrum, used to transmit and enhance power or motion
100
system
What is a set of objects, organisms, or different parts acting to form a whole
200
friction
What is the name of the force that opposes the relative motion of two material surfaces in contact with one another
200
atom
What is the smallest unit of a chemical element the can still retain the properties of that element
200
energy transfer
What is a change of energy from one form to another
200
wedge
What is a type of simple machine that consist of an inclined plane used to separate two objects
200
scientific method
What is a plan of inquiry that uses the scientific process skills as a tool to gather, organize, analyze, and communicate information
300
diffraction
What is the change in direction of a wave caused by passing by an obstacle or traveling through an opening
300
proton
What is the subatomic particle having a positive charge and which is founded in the nucleus of the atom
300
entropy
What is measure of randomness or disorder of a closed system
300
solution
What is a mixture of two or more substances uniformly dispersed throughout a single phrase
300
variable
What is the event, condition, factor that can be changed or controlled in order to study or test a hypothesis in a scientific experiment
400
frequency
What is What is the number of cycles or waves per unit time
400
neutral
What is a particle, object, or system that lacks a net charge
400
calorie
What is the amount of heat needed to raise one gram of water one degree celsius at standard atmospheric pressure
400
mass
What is the amount of matter and object holds
400
experiment
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
500
speed
What is amount of distance traveled at the time rate at which any physical process takes place
500
electron
What is a stable elementary particle that is negatively reduced and orbits the nucleus of the atom
500
thermal energy
What is the internal energy found by adding the kinetic energy of particles making up a substance
500
pulley
What is a type of machine a circular lever, usually a wheel with a groove where a rope can be placed and used to change the direction of force
500
dependent variable
What is factor being measured or observed in an experiment