Physics
Atom
100
the peak or highest point on a wave?
What is crest?
100
the smallest unit of a chemical element that can still retain the properties of that element
What is an atom?
200
force of air on moving objects
What is force?
200
a stable elementary particle that is negatively charged and orbits the nucleus of an atom
What is an electron?
300
the number of cycles or waves per unit time
What is frequency?
300
a substance that cannot be reduced to a simpler substance by chemical means
What is element?
400
a force that opposes the relative motion of two material surfaces in contact with one another
What is friction?
400
a particle, object, or system that lacks a net charge
What is a neutral?
500
the observed effect of the force of gravitation
What is gravity?
500
a subatomic particle having zero charge, found in the nucleus of an atom
What is neutron?
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