Ch. 13 Review

_____ is a measure of the ability to do work.

• photosynthesis
• energy
• power
• respiration

What are the units of work?

• N×m
• Kgx m²/s²
• J
• All of them

Which of the following is an example of mechanical energy?

• light energy
• nuclear energy
• potential energy
• chemical energy

The kind of energy associated with atomic bonds is...

• kinetic energy
• light energy
• nuclear energy
• chemical energy

_____ is defined as the rate at which work is done.

• Power
• Joule
• Speed
• Mechanical Advantage

The transfer of energy to a body by the application of a force that causes the body to move in the direction of the force is called...

• work
• mechanical advantage
• power
• distance

What are the units of power?

• horsepower
• joules per second
• watts
• all of them

The law of conservation of energy states that energy...

• can only be converted
• is always equal and opposite
• cannot be created or destroyed
• is created from motion

Mechanical energy can change to nonmechanical energy as a result of...

• heat
• air resistance
• radiation
• none of these

At the top of its arc, a thrown ball has _____ potential energy.

• minimum
• zero
• average
• maximum