Topic 3 - Heat Review

What is the primary difference between heat and temperature?

• Heat is a measure of the average kinetic energy of particles, while temperature is the total energy of all particles.

• Temperature is a measure of the average kinetic energy of particles, while heat is the total energy transferred between objects.

• Heat and temperature are the same and can be used interchangeably.

• Temperature is measured in joules, while heat is measured in degrees Celsius.

Which of the following best describes thermal equilibrium?

• When two objects are at different temperatures and heat flows from one to the other.

• When two objects are at the same temperature and no heat flows between them.

• When one object is hotter than the other and heat flows continuously.

• When two objects have the same mass and volume.

What is the specific heat capacity of a substance?

• The amount of heat required to change the temperature of 1 kg of the substance by 1°C.

• The amount of heat required to change the state of 1 kg of the substance.

• The total heat content of a substance.

• The temperature at which a substance changes state.

Which equation represents the calculation of heat energy using specific heat capacity?

What is latent heat?

• The heat required to change the temperature of a substance.

• The heat required to change the state of a substance without changing its temperature.

• The heat lost to the surroundings during a chemical reaction.

• The heat absorbed by a substance when it is at thermal equilibrium.

Which of the following is NOT a method of heat transfer?

• Conduction

• Convection

• Radiation

• Reflection

In which state of matter do particles have the least amount of kinetic energy?

• Solid

• Liquid

• Gas

• Plasma

What happens to the particles of a substance as it changes from a solid to a liquid?

• The particles move closer together and vibrate less.

• The particles move further apart and vibrate more.

• The particles stop moving completely.

• The particles become charged and repel each other.

Which of the following is an example of conduction?

• Heat from the sun warming your skin.

• Boiling water circulating in a pot.

• A metal spoon getting hot from a pot of boiling water.

• Warm air rising to the ceiling.

What is the unit of specific heat capacity in the metric system?

• Joules per kilogram per degree Celsius (J/kg°C)

• Calories per gram per degree Celsius (cal/g°C)

• Watts per metre per degree Celsius (W/m°C)

• Newtons per metre (N/m)