Chapter 4 Exam

Given two objects of the same size, the one that is ____ will absorb more radiant heat.

• reflective

• darker

• smaller

• transparent

Which law states that energy cannot be created nor destroyed?

• Law of Return

• Murphy's Law

• Avogadro's law

• Law of conservation of energy.

The US Customary unit of mechanical power is the ____.

• Horsepower

• British thermal unit

• Joule

• Watts

Energy that is stored is called ____ energy.

• Kinetic

• Potential

• sensible

• frozen

To calculate work, you must multiply ____ by the distance through which it travels.

• power

• enthalpy

• mass

• force

A substance’s atoms ____ when heat is applied to the substance.

• move slowly

• move more rapidly

• move into a crystalline formation

• stop moving

To calculate specific enthalpy, you must divide a substance’s total enthalpy by its ____.

• volume

• weight

• mass

• temperature

Copper conducts heat better than glass.

• True

• False

The sun heats the earth through conduction.

• True

• False

During a state change, the temperature of the substance always changes.

• True

• False