Thermal Energy Transfer

Front

Which term describes the movement of particles within a substance?

Back

kinetic energy

Front

What method of thermal energy transfer occurs because of temperature differences between gasses or liquids? Options: conduction, convection, radiation, all of the above

Back

convection

Front

A student pours hot chocolate into two mugs made of different materials. She noticed that one mug kept the hot chocolate warmer than the other mug and plans to do an experiment based on her observations. Which of the following questions should she ask when designing the experiment? What is the best temperature to drink hot chocolate?, What brand of hot chocolate stays warm the longest?, What type of mug material is the best for keeping warm liquids warm?, What brand of mug will hold the greatest volume of hot chocolate?

Back

What type of mug material is the best for keeping warm liquids warm?

Front

Why does metal feel colder than wood at the same temperature? Options: Metal has a lower specific heat capacity., Metal is denser than wood., Metal conducts heat away from your hand faster., Metal reflects heat better than wood.

Back

Metal conducts heat away from your hand faster.

Front

What type of heat transfer is responsible for the wind?

Back

Convection

Front

Which of the following is an example of conduction? Options: The Sun warming your skin., A spoon heating up in a pot of hot soup., Warm air rising to the ceiling., A heater warming a room.

Back

A spoon heating up in a pot of hot soup.

Front

This model represents which of the following concepts? Options: thermocline, convection, thermoregulation, conduction

Back

convection

Front

What happens when heat is transferred by conduction?

Back

Heat transfers through direct contact between particles.

Front

A student places a metal spoon at room temperature in a cup of hot cocoa. Which is the best prediction for what happens to the temperature of the spoon and how energy is transferred?

Back

The spoon will heat up because thermal energy will be transferred from the hot cocoa to the spoon through conduction when particles collide.

Front

What happens to molecules in a substance as it absorbs thermal energy?

Back

They expand and move faster.