States of Matter
Atomic Structure
Chemical Reactions
Motion
Forces
100
When a solid turns to a liquid.
What is melting
100
A positively charged particle in the nucleus of an atom.
What is a proton?
100
Electrons in the outermost shell, responsible for bonding.
What is a valence electron?
100
A point that is used to determine if an object is in motion.
What is a reference point?
100
The cause of an objects change in velocity.
What is an unbalanced force?
200
When a substance goes from a solid to a gas and skips the liquid phase.
What is sublimation?
200
The number of protons in an atom
What is atomic number?
200
A shared pair of electrons.
What is a covalent bond?
200
The value that is calculated with distance and time.
What is speed?
200
A push or a pull.
What is a force?
300
A change in a substances state of matter.
What is a physical change?
300
A neutral particle in an atom.
What is a neutron?
300
A period and a group.
What are the horizontal rows across the periodic table called, what are the vertical rows called?
300
The total length of the actual path between two points.
What is distance?
300
Forces that act on an object with no net change in velocity.
What is a balanced force?
400
The ability to burn, change color, tarnish or rust
What is a chemical change?
400
The number of neutrons AND protons in an atom.
What is atomic number?
400
Hard, brittle solids with high melting points.
What is an ionic compound?
400
A quantity that has both magnitude and direction.
What is a vector?
400
Gravity, friction, compression and tension.
What are three types of forces?
500
The changing of a substance into another substance.
What is a chemical change?
500
A neutral compound.
What is a covalent compound?
500
The length and direction of a straight line between two points.
What is displacement?
500
mass times acceleration.
What is the formula for determining the numeric value of a force?
M
e
n
u