Quiz: Heat

What is heat in the context of physics?

• Energy transferred due to temperature difference

• The temperature of an object

• Energy stored in an object

• The potential energy of an object

Which of the following is a measure of the average speed of particles in a substance?

• Latent heat

• Heat

• Thermal energy

• Temperature

What happens to a substance when it absorbs heat without a change in temperature?

• It changes phase

• Its temperature increases

• It becomes denser

• It contracts

Which temperature scale is based on absolute zero?

• Kelvin

• Celsius

• Centigrade

• Fahrenheit

What is the freezing point of water on the Celsius scale?

• 273.15° C

• 100° C

• 0° C

• 32° C

What is the term for the energy absorbed or released during a phase change?

• Latent heat

• Thermal energy

• Kinetic energy

• Sensible heat

What is the main concept behind the kinetic theory of matter?

• Particles are stationary

• Particles are in constant motion

• Particles only move in liquids

• Particles only move in gases

Which of the following expands the most when heated?

• Gases

• Plasma

• Liquids

• Solids

What is thermal equilibrium?

• When an object stops absorbing heat

• When heat flows from a colder object to a hotter one

• When two objects have the same temperature

• When two objects have the same thermal energy

Which scale assigns 32° for the freezing point of water?

• Celsius

• Kelvin

• Fahrenheit

• Rankine