Unit 3: Thermal Energy Transfer

A hot air balloon contains air that expands as it is heated. What type of thermal energy transfer causes a hot air balloon to rise?

• Radiation

• Convection

• Conduction

• None of the above

Tags

NGSS.MS-PS1-4

When a substance is cooled, what happens to the particles of the substance?

• Kinetic energy increases

• Kinetic energy decreases

• Potential energy increases

• Potential energy decreases

Tags

NGSS.MS-PS1-4

The greater the motion of particles in a substance, the __________ a substance’s temperature.

• higher

• lower

• unchanged

• constant

Tags

NGSS.MS-PS1-4

If an object has particles that are moving very quickly, the object 's temperature is probably (a)   .

• cold
• slow
• big
• hot

Tags

NGSS.MS-PS1-4

With convection, warm air ____________ and cold air _____________.

• rises, sinks
• sinks, rises

Tags

NGSS.MS-ESS2-5

NGSS.MS-ESS2-6

Warming up by standing close to a campfire is an example of

• radiation

• conduction

• convection

• transpiration

Heat always moves from __ to __

• hot to cold

• cold to hot

• big to small

Tags

NGSS.MS-PS3-3

Boiling water moving in a circular motion is an example of

• radiation

• conduction

• convection

A group of friends gather around a fire to stay warm. This is an example of ________.

• conduction

• convection

• radiation

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

A cold metal spoon is placed in a bowl of hot soup. Which best describes how the spoon is affected?

• The heat from the soup does not affect the temperature of the spoon.

• The heat from the soup is conducted through the spoon, making the spoon warmer.

• The cold air in the room radiates into the soup, cooling it, and keeping the spoon cool.

• The cold from the spoon is conducted into the soup, causing the soup to cool to the same temperature as the spoon.T

Tags

NGSS.MS-PS1-4