Final Exam Study Guide Answer Key

What is the definition of matter?

• Anything that has volume and mass

• Anything that produces light

• Anything that can move

• Anything that has energy but no mass

What is the definition of mass?

• The amount of matter in an object

• The force acting on an object

• The volume of an object

• The speed of an object

What is the definition of volume?

• The amount of space an object takes up

• The weight of an object

• The color of an object

• The temperature of an object

What is the definition of density?

• The mass of a substance per unit volume

• The volume of a substance per unit mass

• The weight of a substance per unit area

• The temperature of a substance per unit volume

What is the formula for density?

• D = m/v (Density equals mass divided by volume)

• D = v/m (Density equals volume divided by mass)

• D = m*v (Density equals mass times volume)

• D = m + v (Density equals mass plus volume)

State the Law of Conservation of Matter/Mass.

• The principle states that the mass of an object never changes - in a chemical reaction; Matter is neither created nor destroyed; the total mass of the elements in the products of a chemical reaction must equal the total mass of the products in a chemical reaction.

• Matter can be created from nothing during a chemical reaction.

• The total mass of the products can be greater than the total mass of the reactants in a chemical reaction.

• Matter is always destroyed in every chemical reaction.

What is particle motion?

• The movement of particles as they relate to their state of matter, phase changes, addition and removal of thermal energy

• The process of particles gaining mass over time

• The way particles change color in different environments

• The ability of particles to generate electricity spontaneously

What is thermal energy?

• The total energy of all the particles in an object, regardless of temperature - goes from warmer to colder

• The energy stored in the bonds of chemical compounds

• The energy an object has due to its position above the ground

• The energy produced by moving electric charges

What is an atom?

• Basic unit from which all matter is made; Basic building block

• A type of molecule found in water

• A large organism

• A type of energy wave

What is a molecule?

• A group of two or more atoms held together by chemical bonds

• A single atom with no bonds

• A mixture of different substances

• A type of energy wave