Thermal Energy and Temperature Quiz

____ is a measure of the average kinetic energy among the particles of a substance.

• Heat.

• Energy.

• Temperature.

• Destroying energy.

Answer explanation

Temperature is a measure of the average kinetic energy of the particles in a substance. It indicates how hot or cold an object is based on the movement of its particles.

Which of these samples of water will have greater average kinetic energy among its particles?

• 20^oC

• 40^oC

• 100^oC

• 5^oC

Answer explanation

The average kinetic energy of the particles in a substance is directly related to its temperature. Therefore, the sample of water at 100°C will have the greatest average kinetic energy among its particles compared to the other temperatures listed.

thermal energy increases when the average ____________ of the object increases.

• Electrical energy.

• Potential energy.

• Kinetic energy.

• Light energy.

Answer explanation

Thermal energy increases when the average kinetic energy of the particles in the object increases. This is because thermal energy is related to the motion of particles within a substance. As the particles move faster, their kinetic energy increases, leading to a rise in thermal energy.

________ is the tool is used to measure temperature?

• Thermometer

• Balance.

• Calorimeter

• Ruler.

When particles go faster, thermal energy will ___________.

• Decrease.

• Increase.

• Stay the same.

• Be doubled.

Answer explanation

When particles move faster, their kinetic energy increases, which in turn increases the thermal energy of the substance. Thermal energy is directly related to the motion of particles.

What is the SI unit of temperature?

• Celsius.

• Kelvin.

Which of the following factors affecting thermal energy?

• Potential energy.

• Kinetic energy.

• Both potential energy and kinetic energy.

• None of the above.

Answer explanation

Thermal energy is primarily influenced by the kinetic energy of the particles within a substance. As the particles move faster, their kinetic energy increases, leading to higher thermal energy. Potential energy, while important in other contexts, does not directly affect thermal energy in the same way.

Convert the following to Fahrenheit.

10^o C

Answer explanation

Convert the following to Fahrenheit.

0^o C

Answer explanation

Convert the following to Fahrenheit.

30^o C