Energy: An Introduction

Which unit of measurement is used to measure energy?

• a.ampere
• b.joule
• c.Kelvin
• d.watt

What kind of energy is associated with moving objects?

• a.heat energy
• b.kinetic energy
• c.light energy
• d.potential energy

When a conversion of energy occurs, the total amount of energy

• a.changes.
• b.decreases.
• c.increases.
• d.stays the same.

What kind of energy is associated with the position of an object relative to a field of force?

• a.heat energy
• b.kinetic energy
• c.light energy
• d.potential energy

The First Law of Thermodynamics states that

• a.energy cannot be created or destroyed.
• b.energy is converted into matter.
• c.energy is lost during conversion from one form to another.
• d.the amount of energy in the universe is always changing.

The Second Law of Thermodynamics states that

• a.energy increases during a change in form.
• b.energy tends to flow to where there is less order.
• c.entropy and energy are the same thing.
• d.with a change of energy, the entropy of the universe increases.

All forms of energy have the ability to do work.

• a.true
• b.false

Entropy always increases in a closed system because

• a.energy cannot be predicted.
• b.energy flow from a lower state to a higher one.
• c.energy flows from a higher state to a lower one.
• d.energy increases when it is contained.