Sci 7 Heat & Temperature Review

Which of the following is NOT part of the particle model of matter?

• Particles have no spaces between them

• Particles make up all types of matter

• Particles are attracted to other particles

• Particles are always vibrating or moving

Mystery substance X can take on the shape of its container when closed and there is barely any attraction between the particles at all. The mystery substance is most likely a....

• Solid

• Liquid

• Gas

• Sublimate

Which is true about particles?

• they stop moving when frozen

• they can transfer energy from cold to hot

• they move faster if they gain energy

• they get bigger if energy is added to them

It is cold outside (-35°C), so you take the bus to school. It is as warm as room temperature inside the bus (21°C). You notice that the bus windows start to fog up with liquid on the inside. This is most likely because...

• water vapor gas on the outside of the bus is warmer than the inside

• water vapor gas on the outside of the bus is warmer than the inside

• water vapor gas inside turns into a liquid on the cold windows

• water vapor gas inside turns into a liquid on the cold windows

Which of the following changes of state requires the removal or loss of energy?

• sublimation and evaporation

• condensation and melting

• freezing and condensation

• evaporation and condensation

Removing energy from a liquid will cause

• the particles in the liquid to slow down

• the particles to change into a gas

• the liquid to take up more space

• a decrease in attractions between particles

The difference between the particles in the beaker and the particles in the flask is that the particles in the beaker

• are smaller and have less energy

• have stronger attraction and less energy

• have more thermal energy and less bonds

• are closer and have more kinetic energy

If you were able to see the particles in water as they gain thermal energy, you would see an increase in

• The motion of the particles

• The size of the particles

• Particle attraction

• The amount of particles

Which of the following is correct:

• Thermal Energy: Increases, Kinetic Energy: Decreases, Temperature: Increases

• Thermal Energy: Increases, Kinetic Energy: Increases, Temperature: Increases

• Thermal Energy: Decreases, Kinetic Energy: Increases, Temperature: Decreases

• Thermal Energy: Increases, Kinetic Energy: Decrease, Temperature: Decreases

The bottom of a pot is made out of copper. This is because it is

• A good conductor

• A good insulator

• Resists heat transfer

• Has low kinetic energy