Chapter 3 Review. All forms of energy are a combination of A. mechanical and chemical energy B. chemical and kinetic energy C. potential and thermal energy.

Chapter 3 Review

All forms of energy are a combination of

• A. mechanical and chemical energy

• B. chemical and kinetic energy• C. potential and thermal energy• D. potential and kinetic energy

Which type of energy is transmitted by vibrations of air?

• A. electromagnetic• B. sound• C. nuclear• D. chemical

When energy is converted from one form to another, what usually is produced?

• A. chemical energy• B. gravity• C. heat• D. nuclear energy

An object’s kinetic energy is determined by its:

• A. position and composition• B. speed and position• C. mass and speed• D. height and weight

Which of the following is a conversion from chemical to mechanical energy?

• A. a dark light bulb starting to glow

• B. food being heated in an oven

• C. a ball rolling down a hill• D. a person lifting a weight

An energy-efficient electric fan converts a large portion of the electrical energy that enters it into

• A. an unwanted form of energy• B. kinetic energy of the fan

blades• C. thermal energy in the fan’s

motor• D. sound energy in the fan’s

motor

The energy in wind used to generate electricity is

• A. chemical energy• B. sound energy• C. potential energy• D. kinetic energy

A skier on a hill has potential energy due to

• A. speed• B. energy efficiency• C. compression• D. position

What energy conversion takes place when a person eats an apple before running a race?

• A. mechanical to chemical• B. chemical to mechanical• C. chemical to thermal• D. thermal to chemical

All substances are made of

• A. energy• B. matter• C. compounds• D. gases

Matter is anything that

• A. has mass and takes up space• B. is made of molecules• C. is a solid at room

temperature• D. takes the shape of its

container

An automobile changes energy into different forms. The total amount of energy does not change due to the _____.

A. Measure of energy efficiency B. Law of conservation of energyC. Law of conservation of massD. Concept of kinetic energy

What 3 steps of the scientific method are included in the introduction of writing a lab report?

What are 3 examples of electromagnetic energy?

• A. microwaves• B. atoms• C. x-rays• D. chemical compound• E. burning gasoline• F. visible light

Energy is…

• A. makes things move or change

• B. the ability to move things• C. used by humans• D. all of the above

Potential energy is determined by…

• A. speed and chemical composition

• B. speed and mass• C. position and mass• D. position and chemical

composition

After gasoline is burned in an automobile engine, it is no longer the same substance. The gasoline has undergone a

• A. temporary change• B. physical change• C. chemical change• D. sublimation change

Which form of energy is created when atoms combine or break apart?

•A. electromagnetic energy•B. chemical energy•C. sound energy•D. nuclear energy

Put the steps of the scientific method in order.

• Conclusion• Experiment• State the problem• Data• Hypothesis• Research

Electrical energy from this is used to provide the energy for such things as satellites, hand-held calculators, and experimental cars.

• A. potential energy• B. energy efficiency• C. solar cell• D. kinetic energy