PHYSICS
ATOM
ENERGY
PHYSICAL SCIENCE
NATURE OF SCIENCE
100
Air resistance is...
the force of air on moving objects
100
atom is...
The smallest unit of a chemical element that can still retain the properties of that element.
100
Energy is...
a quantity that describes the capacity to do work; a source of usable power.
100
chemical change
what is a reaction or a change in a substance produced by chemical means that results in producing a different chemical.
100
system is....
a set of objects, organisms, or different parts acting to form a whole
200
Acceleration is...
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
200
Electron is...
What is a stable elementary particle that is negatively charged and orbits the nucleus of the atom.
200
Condensation
what is 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
200
Circuit is....
a reaction or a change in a substance produced by chemical means that results in producing a different chemical
300
the lowest point on a wave is...
trough
300
Element is...
A substance that cannot be reduced to simpler substance by chemical means
300
heat is...
a form of energy resulting from the temperature difference between a system and its surroundings.
300
density 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
400
the time-rate at which a body changes its position; defined as displacement divided by the time of travel is...
velocity
400
the time-rate at which a body changes its position; defined as displacement divided by the time of travel is...
proton
400
heat transfer in a gas or liquid by the circulation of currents from one region to another is...
convection
400
prism is...
a piece of glass with polished plane surfaces that disperses a beam of white light into its component colors
500
Amplitude is...
Any periodic function the maximum absolute variation of the function
500
neutron is...
a subatomic particle having zero charge, found in the nucleus of an atom
500
a measure of randomness or disorder of a closed system is....
entropy
500
fulcrum is...
the pivot point of a lever