Unit 5 Thermal Energy

The sun warming your skin is an example of heat transfer through 

• conduction
• convection
• radiation
• thermal electricity

Heat transfer in boiling water.

• Conduction
• Convection
• Radiation

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

An iron bar is placed in a flame, as shown, and is heated until the end glows.The other end of the iron bar soon becomes hot, too.  Which of the following statements best describes why the iron bar becomes hot to the touch?

• a convective flow of energy is set up inside the iron bar.
• energy is conducted from atom to atom along the length of the iron bar.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Which material is the best conductor of heat?

• glass
• styrofoam
• metal
• wood

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NGSS.MS-PS3-3

NGSS.MS-PS3-4

Which best describes heat transfer by radiation?

• A slice of bacon frying in a pan.

• A pot on a stove boiling water.

• Cooking a hotdog in a microwave.

• A hot air balloon.

Which of the following best describes CONVECTION?

• When heat is transferred through waves.

• When heat is transferred through objects that are touching.

• The movement of gas or liquid in which warmer parts move up and the colder parts moves down.

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NGSS.MS-ESS2-6

Warm air rises and the cool air sinks demonstrates this type of heat transfer.

• Conduction

• Convection

• Radiation

Tags

NGSS.MS-ESS2-6

This is the transfer of thermal energy through "space".

• conduction

• radiation

• convection

• spaceship

Thermal energy being transferred from a hot mug of cocoa to the table it is sitting on is an example of __________.

• convection

• conduction

• radiation

• chemistry

Which best explains how this roasting marshmallows happens?

• Heat from the fire is conducted to the marshmallow.

• Heat from the fire is radiated to the marshmallow.

• The coolness of the marshmallow is conducted to the fire.

• The coolness of the marshmallow is radiated to the fire.