Heat Transfer Methods

What is the primary method of heat transfer from a stove to a pot sitting on top of the stove?

• Conduction

• Convection

• Radiation

• Insulation

Tags

NGSS.MS-PS1-4

Which method of heat transfer is primarily responsible for the warmth felt when you sit near a campfire?

• Conduction

• Convection

• Radiation

• Insulation

During a thunderstorm, warm air rises rapidly, creating strong updrafts. This is an example of which type of heat transfer?

• A) Conduction

• B) Friction

• C) Radiation

• D) Convection

Why do railroad tracks have gaps between them?

• To allow for maintenance

• To provide space for trains to pass

• To accommodate thermal expansion during hot weather

• To improve aesthetic appeal

How does a refrigerator maintain a cool temperature inside by transferring heat to the outside environment?

• By using conduction only

• Through the compression and expansion of refrigerant

• By using a heating element

• Through convection currents in the air

Tags

NGSS.MS-PS3-3

How do microwaves cook food in a microwave oven?

• By using conduction to transfer heat

• By causing water molecules in the food to vibrate, generating heat

• By radiating heat from the oven walls

• By direct contact with a heating element

Tags

NGSS.MS-PS3-3

NGSS.MS-PS3-4

What is the primary reason microwaves can cook food unevenly?

• Different food items absorb microwaves at varying rates

• Microwaves do not penetrate food

• Microwaves only heat the surface of food

• Microwaves cool down as they travel through food

What is one of the main uses of ultraviolet (UV) light in everyday life?

• Cooking food

• Sterilizing surface

• Sending wireless signals

• Providing illumination for reading

Which type of electromagnetic wave would be best for signal transfer if designing a fiber optic cable for internet communication?

• Radio waves

• Microwaves

• Infrared waves

• Visible light

Tags

NGSS.HS-PS4-5

Fill in the blank: Microwaves are used in cooking because they ______.

• A) penetrate food evenly

• B) only heat the surface

• C) are absorbed at varying rates by different food items

• D) cool down as they travel through food

Tags

NGSS.MS-PS1-4

NGSS.MS-PS4-2