Unit #2+#3
anything that has mass and occupies space
A change of the state of matter (solid, liquid, gas, plasma)
phase change
Rubbing Force that causes Objects to SLOW DOWN.
Friction
cars going down hill on a roller coaster is an example of what kind of energy?
kinetic energy
The bending of a wave as it passes at an angle from one medium to another
refraction
A tiny, negatively charged particle that moves around the nucleus of an atom.
electron
horizontal rows on the periodic table
period
Force that attracts objects toward each other
Gravity
Energy cannot be created or destroyed, it simply changes form.
Law of Conservation of Energy
Two Forces acting on an object EQUAL in size, but opposite in direction that DO NOT CAUSE MOVEMENT.
balanced forces
if density of object is less than dense than water
the object will float
pure substance that consists entirely of one type of atom
element
Two Forces acting on an object NOT Equal in size, but opposite in direction that CAUSES MOVEMENT.
Unbalanced Forces
materials that allow energy to flow through them easily
conductor
the bouncing back of a ray of light, sound, or heat when the ray hits a surface that it does not go through
reflection
when a gas becomes a liquid
condensation
A type of change that involves the physical properties of a substance
physical change
Force is measured in Units called
Newtons (N)
The ability to do work
Energy
The variable that is measured as data is the _________ variable.
dependent
The process of a solid changing directly into a gas, without ever becoming a liquid
sublimation
states that matter cannot be created nor destroyed
Law of Conservation of Mass
Change in an object's position.
motion
Mediums sound can travel through
Solid, Liquid and Gas
the force of gravity between Earth and the object-an objects weight depends on its location in the universe
weight