2 Thermal Energy Transfer and Properties Quiz

Which method of heat transfer can occur through a vacuum?

• Conduction
• Radiation
• Convection
• All of the above

Why does an ice cream cone melt when you hold it?

• Magic
• The air particles collide and transfer kinetic energy
• The cone absorbs sunlight
• The cone naturally melts at room temperature

What is required for thermal conduction to stop?

• The temperature must reach 0°C
• All particles must stop moving
• The thermal energy of all particles in contact must be equal
• The material must be completely solid

Why are metals good thermal conductors?

• They are shiny
• They allow electrons to move easily
• They are usually cold
• They are solid at room temperature

Why do thermal insulators work?

• They prevent electron movement
• They speed up particle movement
• They increase temperature
• They remove all heat

What happens to a material with high specific heat?

• It heats up quickly
• It takes more energy to increase its temperature
• It conducts heat better
• It always stays cold

Why is water good for cooling engines?

• It's cheap
• It has a high specific heat
• It's easy to find
• It's clear

What causes thermal contraction?

• Decrease in temperature
• Increase in pressure
• Addition of mass
• Change in color

How do hot air balloons use thermal energy to fly?

• By making the balloon lighter
• By heating air to make it less dense
• By creating wind currents
• By using solar power

In which states of matter can convection occur?

• Only in solids
• Only in gases
• In fluids (liquids and gases)
• In all states of matter