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1st semester vocab

Nucleus The center of an atom that holds protons and neutrons.
Protons Located in the nucleus. Has a positive charge and determines the element.
Neutrons Has no charge and is located in the nucleus.
Electrons Has a negative charge and is located in the electron cloud.
Electron shell The rings surrounding the nucleus where the electrons are located.
Balanced force All forces equal zero.
Unbalanced Force Net force is unequal and causes change in speed and direction.
Force A push or pull.
Speed The distance traveled by something in a certain amount of time.
Acceleration The change in objects velocity over time.
Velocity An objects speed and direction at a certain instant.
Direction The path in which an object moves.
Newtons 3rd law For every action there is an equal and opposite reaction.
Isotope An atom with different number of neutrons than protons.
Ion An atom that has more or less electrons than normal.
Safety rule #1 Listen to instructions and follow directions.
Safety Rule #2 Be on your best behavior in lab.
Safety rule #4 Wear your safety goggles when working with heat, chemicals, and when your teacher tells you to.
Safety rule #5 Keep all lab equipment away from the edge of the table.
Safety rule #6 Handle your lab equipment very carefully.
Created by: s0507610