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