Chemistry of Materials
These are the three different states of matter.
What are solid, liquid, and gas?
Changes in state, size, or shape are examples of this kind of change.
What are physical changes?
The kind of energy a moving object has.
What is kinetic energy?
Some examples of types of energy.
What are chemical, electrical, thermal, sound, light, and nuclear energy?
A disturbance that carries energy from one place to another.
What is a wave?
This is two or more atoms held together by chemical bonds.
What is a molecule?
Bubbles, formation of a solid, or an unexpected color change are examples of this kind of change.
What are chemical changes?
Any push or pull acting on an object.
What is a force?
When energy moves from one object or place to another without changing form.
What is energy transfer?
The wave characteristic that indicates the amount of energy carried by the wave.
What is amplitude?
A state of matter that keeps its volume but takes the shape of its container.
What is a liquid?
This states that mass is neither created nor destroyed when a chemical reaction occurs.
What is the law of conservation of mass?
The distance an object travels in a certain amount of time.
What is speed?
When energy is changed from one form to another (such as from chemical energy to thermal energy).
What is energy transformation?
Three things that can happen when a wave hits a surface.
What are transmission, reflection, and absorption?
A compound made of long chains of smaller repeating subunits.
What is a polymer?
The final substance present after a chemical reaction occurs.
What is a product?
When forces are applied in opposite directions so the object does not move.
What are balanced forces?
The total amount of energy before transfer or transformation must be equal to the amount after.
What is the law of conservation of energy?
When frequency increases, wavelength __________.
What is decreases?
The physical property of a material that can be calculated using the mass and volume of the sample.
What is density?
The chemical substance that enters into a reaction.
What is a reactant?
The law that states that an object's motion cannot change unless a force acts on the object.
What is Newton's first law (or the law of inertia)?
The ratio of energy supplied to operate a device vs. the unwanted energy given off.
What is energy efficiency?
Type of wave (like sound) that requires a medium to travel.
What is a longitudinal wave?