Matter & Mixtures
This is the term for a pure substance made of only one type of atom.
Element
This law states that matter is neither created nor destroyed in a chemical reaction.
Law of Conservation of Mass
This is the energy an object has due to its motion.
Kinetic energy
This law says an object at rest stays at rest unless acted on by an unbalanced force.
Newton's First Law
This type of wave can travel through empty space.
Light wave (electromagnetic wave)
This type of mixture is evenly mixed and looks the same throughout.
Homogenous mixture
If reactants have a mass of 24.5 grams, this is the mass of the products.
24.5 grams
This equation, KE = ½mv², is used to calculate this type of energy.
Kinetic energy
When the same force is applied, this type of object will accelerate more.
Lighter object (object with less mass)
This is the distance from crest to crest in a wave.
Wavelength
Dissolving salt in water is this type of change because no new substance forms.
As an object is lifted higher, this type of energy increases.
Gravitational potential energy
When a solid melts, particle motion does this.
Increases (particles move faster)
These forces are equal in size and opposite in direction, causing no change in motion.
Balanced forces
This term describes how many waves pass a point each second.
Frequency
This is a characteristic of matter that can be observed without changing its identity.
Physical property
In a balanced chemical equation, this must be the same on both sides.
Number of atoms (of each element)
This type of energy is stored in an object due to its position or condition.
Potential energy
An object with more mass has more of this property, meaning it resists changes in motion more.
Inertia
When light enters water from air, this bending of light is called this.
Refraction
Elements in the same group behave similarly because they have the same number of these.
Valence electrons
In experiments showing conservation of mass, this quantity is measured before and after.
Mass
This law states that energy cannot be created or destroyed, only transferred or transformed.
Law of Conservation of Energy
When the force on an object increases and mass stays the same, this happens to acceleration.
It increases
As wavelength increases, this happens to frequency (if wave speed stays constant).
It decreases