Thermal Energy Lesson

Multiple Choice

What is thermal energy and how is it related to temperature?

• The internal energy of a system, object, or substance

• The energy associated with chemical reactions

• The energy produced by electrical currents

• The energy stored in food

Multiple Choice

An ice cube melts on a hot summer day because the energy of the particles

• decreases over a period of time and is lost.

• increases and the particles move apart.

• causes them to lock together.

• is converted into potential energy.

Multiple Choice

What are the three factors that determine the thermal energy of a substance?

• Temperature of the substance

• Amount of matter in the substance

• State of the substance

• Color of the substance

Open Ended

What is the difference between heat and thermal energy?

Multiple Choice

What are the three important processes that generate heat?

• Friction (Rubbing)

• Chemical Reactions

• Sunlight (Radiation heating)

• Electricity

Multiple Choice

What is the relationship between mechanical energy and thermal energy as described in the image?

• Mechanical energy is converted to kinetic energy

• Mechanical energy is converted to thermal energy

• Mechanical energy is lost during friction

• Mechanical energy has no effect on thermal energy

Multiple Choice

What happens to chemical energy when bonds break during a chemical reaction?

• It is lost as heat

• It is transformed into thermal energy

• It remains unchanged

• It is converted into light energy

Multiple Choice

What process causes Earth and objects on Earth to get warmer when radiant energy is absorbed?

• Conduction

• Convection

• Radiation

• Insulation

Open Ended

Observe the image below and answer the question.

If two objects have different temperatures, which direction will heat move? When will the movement stop?

Multiple Choice

Stir frying vegetables is an example of

• Convection

• Conduction

• Radiation

Match

Match the following scenarios with the correct method of heat transfer.

• Convection

• Conduction

• Radiation

Warm air rising from a heater and circulating in a room

Heat traveling through a metal rod when one end is heated

Heat from the sun warming your face

• Warm air rising from a heater and circulating in a room

• Heat traveling through a metal rod when one end is heated

• Heat from the sun warming your face

Drag and Drop

Heat transfers from an area of

Placeholder

temperature to an area of

Placeholder

temperature.

Drag these tiles and drop them in the correct blank above

high to low

low to high

high to high

Open Ended

A metal rod is heated.

Using this gif, explain how thermal is transferred from the flame to the far end of the rod.

Hotspot

Click on the example of CONDUCTION in the picture!

Dropdown

Boiling Water

Select answer

Drag and Drop

When your feet touch hot sand, heat moves from the sand to your feet. What type of heat movement is this?

Placeholder

Drag these tiles and drop them in the correct blank above

Conduction

Convection

Radiation

Match

Match the following scenarios with the type of heat transfer they represent.

• Convection

• Conduction

• Radiation

Warm air rising to the top bunk

Heat transfer through a metal rod

Sunlight warming your skin

• Warm air rising to the top bunk

• Heat transfer through a metal rod

• Sunlight warming your skin

Hotspot

Which spot identifies the "conductor" in this image?

Drag and Drop

Heat transfers from an area of

Placeholder

temperature to an area of​

Placeholder

temperature.

Drag these tiles and drop them in the correct blank above

high

low

heat

Multiple Choice

5 Jars with 92* C water are set up with thermometers. 4 jars are wrapped equally with different material. One jar is kept unwrapped as a control. After 10 minutes the temperature is checked and noted in the above chart. Which property of the material is most likely being tested?

• state of matter

• Thermal energy insulation

• Thermal energy production

• ability to conduct electricity

Dropdown

One of your friends wanted to add chocolate chips to the popcorn. When the chocolate chips touched the hot popcorn, they melted because of

Select answer

.

Multiple Choice

What material is typically used for the handle of a pot, and why is it important?

• Metal

• Plastic

• Wood

• Glass

Multiple Choice

The diagram shows a complete circuit but the bulb did not light up. Why?

• The plastic spoon is an insulator of electricity and prevented electric current from flowing through the circuit.

• The plastic spoon is not connected properly and prevented electric current from flowing through the circuit.

• The plastic spoon is a conductor of electricity and prevented electric current from flowing through the circuit.

Multiple Choice

The main reason that we have currents in the ocean and air is

• the sun heats the air and ocean evenly everywhere
• the heat inside the earth heats the ocean and the ocean heats the air
• the sun cannot heat both the air and water, so one must heat the other
• the sun heats air and water more at the equator because it receives more direct sunlight

Multiple Choice

A sea breeze blows from the ocean toward the shore. Why does this occur?

• Air over land heats faster than air over water, which cause convection.

• Conduction of heat from the warm water produces wind from the ocean.

• The tide carries the wind to the shore as it moves back and forth.

• High pressure over the land causes a downdraft to occur.

Multiple Choice

What is the process called that transfers heat by electromagnetic waves through a vacuum?

• Conduction

• Convection

• Radiation heating

• Thermal conduction

Reorder

Reorder the types of electromagnetic radiation from highest energy to lowest energy.

• Radio WAves

• Infrared

• Visisble

• Ultraviolet

• Gamma

1

2

3

4

5

• 1
• 2
• 3
• 4
• 5

Multiple Choice

What are the two forms of electromagnetic radiation that carry radiant energy important to radiation heating?

• Infrared and Ultraviolet Light

• Infrared and Visible Light

• Visible Light and X-Rays

• Microwaves and Radio Waves

Multiple Choice

What is the process by which thermal energy radiates from a fire to your body?

• Conduction

• Convection

• Radiation

• Insulation

Multiple Choice

A vacuum flask prevents heat transfer by conduction, convection, and radiation.

• True

• False

Multiple Choice

Scientists' favorite temperature scale, because it begins at the absolute coldest anything can get. 

• Celsius
• Fahrenheit
• Kelvin
• All of them

Dropdown

The direction in which heat transfers depends on ​

Select answer

Poll

How confident do you feel about this topic now?

• Very confident
• Somewhat confident
• Not confident