Physical Science Exam Review 1

Front

What is a chemical reaction that absorbs heat from its environment?

Back

Endothermic reaction.

Front

What type of chemical reaction occurs when an element reacts with a compound and takes the place of another element in that compound?

Back

Single replacement reaction.

Front

What is the force that resists motion?

Back

Friction.

Front

What term describes a quantity that has magnitude only?

Back

Scalar.

Front

What is a chemical reaction that releases energy through light or heat?

Back

Exothermic reaction.

Front

What is the term for a reaction that involves the breaking down of a compound into simpler substances?

Back

Decomposition reaction.

Front

What is the term for a reaction where two compounds exchange ions or bonds to form different compounds?

Back

Double replacement reaction.

Front

What is the term for the energy required to start a chemical reaction?

Back

Activation energy.

Front

What is the principle that states that energy cannot be created or destroyed, only transformed?

Back

Law of conservation of energy.

Front

What is the term for the speed of an object in a given direction?

Back

Velocity.