Heat transfer

What is thermal energy?

• The energy stored in chemical bonds.

• The energy of moving particles.

• The energy generated by light.

• The energy created by sound waves.

How does the movement of water particles change as water gets hotter?

• Particles move slower.

• Particles stop moving entirely.

• Particles move faster.

• Particle movement remains unchanged.

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What objects speed up due to increase of heat?

• Plastics, metals, and ceramics.
• Ice, snow, and frost.
• Gases, liquids, and solids.
• Clouds, fog, and rain.

In which state of matter do particles move most freely and vigorously?

• Solid (like ice)

• Liquid (like water)

• Gas (like water vapor/steam)

• Plasma

In what direction does thermal energy typically move between objects?

• From cooler objects to hotter objects.

• From hotter objects to cooler objects.

• It only moves between objects of the same temperature.

• It moves randomly without a specific direction.

What property does an object have if it can transfer heat?

• Absorber
• Insulator
• Conductor
• Refrigerant

What are the three ways heat travels?

• Absorption, diffusion, reflection
• Evaporation, condensation, precipitation
• Compression, expansion, filtration
• Conduction, convection, radiation

what is thermal equilibrium?

• Thermal equilibrium is the state in which two or more bodies in thermal contact have the same temperature and do not exchange heat.
• Thermal equilibrium is the condition where bodies have varying temperatures and heat flows between them.
• Thermal equilibrium is when two bodies are in contact and one is heated while the other cools.
• Thermal equilibrium occurs when bodies are at different temperatures and heat is exchanged.

How does heat travel from the sun?