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Physical Science Semester 1

Teacher: Mr Beall
A substance made from 2 or more elements joined by a chemical bond
A system of knowledge and the methods you use to find that knowledge
The smallest particle of an element
Speed measure at a particular moment
A substance with a fixed composition because it only one type of atom
A proposed answer to a question. An educated guess
A force that opposes the motion of objects that touch as they move past each other
Part of the atom that contains the protons and the neutrons
Electrons in the highest occupied energy level of an atom
A unit of force that causes a 1 KG mass to accelerate at a rate of 1 meter per second per second.
Positively charged subatomic particle
The rate at which velocity (speed) changes
_________ motion. Movement in relation to a frame of reference.
The study of the composition, structure, properties, and reactions of matter
The length of a path between 2 points
Region of space around the nucleus where an electron is likely to be found
The ratio of the distance an object moves to the amount of time an object moves
A state of matter in which a material has a definite volume, but not a definite shape
Atomic _______. The sum of the protons and neutrons in an atom
Energy an object has due to its motion