The name of the type of waves that do NOT need a medium (solid, liquid, or gas) to travel through.
What is electromagnetic waves?
100
The bouncing back of a wave (light, sound, infrared, etc.) when it makes contact with a surface it cannot go through.
What is reflection?
100
The charge of protons, neutrons, and electrons.
What is positive (protons), neutral (neutrons) and negative (electrons)?
100
You can describe the chemical properties of a substance by determining the pH. If it has a pH over 7 it is considered to be a(n)
What is a base?
200
The energy of motion.
What is kinetic energy?
200
The name of the two waves that need a medium (solid, liquid, or gas) to travel through.
What are mechanical waves (transverse and compression)?
200
The thermal energy transfer between objects that are at different temperatures.
What is heat?
200
The mass of an atom at rest (amount of protons and neutrons and atom has).
Hint: Electrons move too fast to be measured.
What is atomic mass?
200
Pure substances cannot be easily separated but these can be.
What is a mixture?
300
The sum of kinetic and potential energy.
What is mechanical energy?
300
The distance from one wave crest to the next wave crest or the distance from one wave trough to the next wave trough.
What is wavelength?
300
The bending of a wave as it enters a medium that causes a change in wave direction.
What is refraction?
300
On the periodic table, rows and columns are called this.
What is periods (rows) and families (columns)?
300
These substances have an indefinite shape, a definite volume, and have a medium/moderate amount of energy.
What is a liquid?
400
This is created when kinetic energy is converted to thermal energy on the surface of two objects.
What is friction?
400
The number of waves that are produced in a given amount of time (waves/second).
What is frequency?
400
Warmer particles rise because they are less dense and cooler particles sink because they are more dense. This is an example of what type of heat transfer?
Hint: It occurs in ocean currents, weather, and Earth's mantle.
What is convection?
400
Density is the ratio of an object's mass and volume. Density is considered this type of property.
What is a physical (quantitative) property?
400
A mixture that contains a solute and a solvent.
What is a solution?
500
Energy stored in chemical bonds.
What is chemical energy?
500
The vertical (up and down) distance between a wave's resting position and that wave's crest or trough.
What is amplitude?
500
The transfer of thermal energy through direct contact.
What is conduction?
500
Covalent bonds between atoms share electrons. These bonds however, take or receive electrons.
What is ionic bonds?
500
Solid --> Liquid =
Liquid --> Solid =
Liquid --> Gas =
Gas --> Liquid =
Solid --> Gas =
What is
melting
freezing
vaporization
condensation
sublimation