Thermal Energy and Transfer

Multiple Choice

What happens to the temperature of a substance when kinetic energy decreases?

• The temperature decreases.

  
  

• The temperature is not related to kinetic energy.

  
  

• The temperature increases.

  
  

• The temperature stays constant.

  
  

​The transfer of energy from one particle of matter to another particle of matter.

​​Conduction​

​The transfer of thermal energy by the movement of a fluid (a gas or a liquid).

​​Convection​

​The transfer of energy by electromagnetic waves (light energy waves).

Radiation​

Conduction

Energy transfer between particles of matter that touch directly.

• As heat is added to a material, the particles begin to vibrate more which means kinetic energy increases.

• Conduction happens through direct touch/contact between objects.​

​

Multiple Choice

Which of the following is an example of conduction?

• Making pancakes on a stove.

• Microwaving your left overs.

• Water at a rolling boil.

• Heat coming from the sun.

Convection

Heat transfer through movement of fluids.

• Fluids are materials that can flow, like liquids and gases.

• The particles at the bottom heat up and become less dense. This causes them to rise and push the colder and denser molecules down.

• This movement is called a Convection Current​

Multiple Choice

Which of the following is an example of convection?

• Making pancakes on a stove.

• Microwaving your left overs.

• Water at a rolling boil.

• Heat coming from the sun.

Multiple Choice

What causes a convection current and keeps it going?

• Hot particles sink, causing the cold particles to rise.

• Cold particles steal the heat from the hot particles.

• Hot particles rise, pushing the cold particles down toward the heat source.

• Convection currents do not move at all.

Radiation

​Heat transfer by electromagnetic waves.

• The only form of heat transfer that does not require matter.

• Heat you can feel but do not always see.

• This is how we receive heat from the sun since it is able to pass through the vacuum of space where there is not matter present for it to travel through.

Multiple Choice

Which of the following is an example of radiation?

• Making pancakes on a stove.

• Microwaving your left overs.

• Water at a rolling boil.

• Cloud formation

Multiple Choice

True or False: Radiation can travel through a the vacuum of space.

• True

• False

Open Ended

Why does hot air rise and cold air sink?

Multiple Choice

Which of the following is not a method of heat transfer?

• Radiation

• Insulation

• Convection

• Conduction

Multiple Choice

In which of the following are the particles the closest together?

• Solid

• Liquid

• Gas

• Fluid

Multiple Choice

How does heat reach the Earth from the Sun?

• Conduction

• Convection

• Radiation

• Insulation

Draw

Write the number of the match in the box next to the definition.

Multiple Choice

Heat ALWAYS Travels from

• Higher temperature to lower temperature

• Lower temperature to higher temperature

Multiple Choice

What happens to particles as they heat up?

• They slow down

• Nothing

• They don't move

• They speed up

Multiple Choice

What happens when the coffee and the cup are in thermal equilibrium?

• The temperature of the cup is increasing

• The temperature of the coffee is decreasing

• There is no longer heat being transferred because they are both the same temperature

Multiple Choice

Two objects with different temperatures will reach thermal equilibrium when.....

• both object becomes hotter

• both objects become colder

• both object reach the same final temperature

Multiple Choice

In what direction do hot liquids and gasses move?

• Side to Side

• Down

• Up

• Back and Forth

Multiple Choice

After taking a hot shower, James steps out of the shower onto the tile floor. The tile felt cold to his feet. Which explanation below best describes James' experience?

• Heat from his feet is transferred to the tile floor

• Cold from the tile floor is transferred to his feet

• Cold from his feet is transferred to the tile floor

Multiple Choice

The condition where two substances in physical contact with each other no longer exchange heat energy. They are the same temperature. THis is called.....

• Thermal Energy

• Cooler to Warmer

• Thermal Equilibrium

Multiple Choice

I wear a large winter coat to keep my body warm. The coat is a ....

• conductor

• insulator

Open Ended

Type two different conductors

Open Ended

Type THREE different INSULATORS

Multiple Choice

A cook will use an oven mitt to pick up a hot pan because cloth is a(n) ________ and keeps the heat from their hand.

• Conductor

• Insulator

• Light Transfer

• Heat transfer

Match

Match the following vocabulary terms to the definition

• Thermal Energy

• Conductor

• Insulator

Heat

Allows thermal energy to pass through (GO)

DOES NOT allow thermal energy to pass (STOP)

• Heat

• Allows thermal energy to pass through (GO)

• DOES NOT allow thermal energy to pass (STOP)

Multiple Choice

What is the difference between a conductor and an insulator?

• An insulator allows thermal energyto flow through it easily and a conductor does not

• A conductor allows thermal energy to flow through it easily and an insulator does not.

• An insulator is magnetic and a conductor is not

• A conductor is magnetic and an insulator is not

  Show

Multiple Choice

Which one is NOT an Insulator?

Multiple Choice

The foam cup and cardboard sleeve act as ______ for the hot coffee.

• Insulator

• Conductor

• Electricty

• Light

Multiple Choice

Which spoon handle would be the hottest?