Physical Science 16.1

Multiple Choice

What is the thermal energy of an object?

• the total number of atoms or molecules

• the total kinetic energy of the atoms or molecules

• the average kinetic energy of the atoms or molecules

• the average mechanical energy of the atoms or molecules

Multiple Choice

What causes a gas to expand when its temperature is increased?

• The number of particles increases as temperature increases

• Each particle expands as its temperature increases, so the total volume increases

• As temperature increases, more electrons leave atoms and move separately

• As gas particles move faster, they overcome some forces of attraction

Multiple Choice

The specific heat of water is 4.18 J/g•°C.  How much heat is required to raise the temperature of 1,000 grams of water by 50°C?

• 83.6 J

• 83.6 kJ

• 209 J

• 209 kJ

Multiple Choice

What property of matter can be measured using a calorimeter?

• temperature

• thermal expansion

• specific heat

• mass

Multiple Choice

Temperature is the transfer of thermal energy from one object to another.

• true

• false