3RD QT - PHYSICAL SCIENCE REVIEWER

It is the world’s most abundant fossil fuel.

• a. coal                       

• b. natural gas           

• c. oil

• d. petroleum

It includes hydrocarbons such as coal, oil, and natural gas that comes from organic remains of prehistoric organisms.

                 

• a. batteries

• b. biogas  

• c. fossil fuels

• d. solar power

Organic matter from plants and animals (microorganisms)

               

               

• a. batteries

• b. biomass

• c. geothermal

• d. wind power

Energy that comes from sources that will run out or will not be replenished in our lifetimes—or even in many, many lifetimes.

                  

   

• a. kinetic

• b. non-renewable

• c. potential

• d. renewable

It can be converted in form, but not created nor destroyed.

      

• a. atom

• b. energy    

• c. force     

• d. matter

What is an enzyme?

• a. An inorganic substance added to food for better digestion.

• b. An organic molecule that dissolves nutrients in the body.

• c. A biomolecule that releases energy during chemical reactions.

• d. A biomolecule that serves as catalyst in biological system.

Catalysts permit reactions to proceed along an energy path.

• a. higher                   

• b. lower        

• c. restricted

• d. stabler

A substance that increases the rate of a reaction without being used up during the reaction is called a _____.

                                 

• a. catalyst

• b. reactant

• c. product

• d. solute

The minimum amount of energy needed for colliding particles to react is called the _____

• a. chemical energy

• b. activation energy

• c. kinetic energy

• d. potential energy

How does a catalyst work in speeding up a reaction?

• a. It lowers the activation energy.

• b. It provides more energy.

• c. It creates more reactants.

• d. It increases the temperature.