Thermal Energy and Heat

Thermal Energy, Temperature, and Heat Transfer

• What happens to something when it is heated?

• How is heat transferred?

When your hands are cold, many people will rub them together to try and warm them up. Does this actually work?




- How do your hands feel before and after rubbing them together?

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Let's Try it Together

Open Ended

• Why do you think they feel this way?

The energy that is transferred from a warmer object to a colder object is called Heat. As an object gets more energy, the particles begin to move more quickly.

Heat

All things are made up of small particles that are constantly in motion. The total amount of energy of all the particles is called Thermal Energy.

Thermal Energy

Thermal Energy and Heat

Multiple Choice

The total amount of Kinetic and Potential energy of all the particles in an object is called:

• Thermal Energy
• Mechanical Energy
• Chemical Energy
• Electrical Energy

Which of these has the most thermal energy?

Dropdown

Heat is the energy that is transferred from a​ ​

Select answer

object to a​

Select answer

object.

We use temperature to tell us how hot or cold something is. The hotter something gets, the faster the particles inside it move.

Temperature is the measure of the kinetic energy of the particles inside something.

More movement means higher kinetic energy which means higher temperature!

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What is temperature?

Hotspot

Circle the object that has the particles with the highest kinetic energy.

Multiple Choice

The measure of the kinetic energy of the particles in an object is called

• Temperature

• Heat

• Thermal Energy

• Potential Energy

If we add an ice cube to both the teapot and the cup, which one will cool down more quickly?

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How does mass effect temperature?

Open Ended

The teapot will take longer to cool down and the cup will cool down quickly. Why do you think this is?

The Matter at Hand

Why does mass effect temperature change?

The more mass an object has, the more particles it is made up of. It takes more energy to heat up more particles. A smaller object will heat up or cool down more quickly because it has fewer particles.

Heat Transfer

How does heat move, or transfer, from one place to another?

Let's talk about Convection, Conduction, and Radiation

The transfer of energy from one object to another that are in direct contact.

Example: Putting your head on your pillow.

Conduction

Heat transfer that occurs through the movement of fluids, which can be liquid or gas.

Example: Boiling Water

Convection

​The transfer of energy by electromagnetic waves. Does not require matter to transfer energy.

Example: Campfire

Radiation

​https://youtu.be/IfeRaOb_E-s?si=dGCHVekBcHHp-YPv

Hotspot

Click on the location where convection is taking place.

Fill in the Blank

What type of heat transfer happens between objects that are touching?

Labelling

Place the correct types of heat transfer where they are happening.

Drag labels to their correct position on the image

Radiation

Conduction

Convection

Match

Match the following terms to the correct description.

• Kinetic Energy

• Potential Energy

• Convection

• Conduction

• Radiation

Energy in Motion

Stored Energy

Heat transfer through currents

Heat transfer through contact

Heat transfer by electromagnetic waves

• Energy in Motion

• Stored Energy

• Heat transfer through currents

• Heat transfer through contact

• Heat transfer by electromagnetic waves