NWR HEAT 1

When Julie was cooking macaroni she noticed that it would rise to the top of the boiling water and then sink back to the bottom of the pot. This is most likely because

• The convection of heat within the water was creating a current.

• The convection of air around the pot was creating a current.

• The conduction of heat within the water was creating a current.

• The conduction of air around the pot was creating a current.

A girl is heating soup. As she stirs the soup with a metal spoon, the spoon becomes hot and burns her hand. Why does the spoon burn the girl’s hand?

• The heat from the soup is radiated through the spoon.

• The heat from the soup is conducted through the spoon.

• The warmth of the girl’s hand is radiated into the spoon.

• The warmth of the girl’s hand is conducted into the spoon.

Tags

NGSS.MS-PS3-4

Which best explains why the temperature inside the greenhouse is higher than the temperature outside the greenhouse?

• The sun’s rays radiate heat into the greenhouse, and then the warmed air is convected inside the greenhouse.

• The sun’s rays conduct heat into the greenhouse, and then the warmed air is radiated inside the greenhouse.

• The warm air outside passes into the greenhouse by convection, and then the warm air is conducted inside the greenhouse.

• The cool air outside passes into the greenhouse by radiation, and then the cool air is conducted inside the greenhouse.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

NGSS.MS-PS3-5

Which is the best choice for the handle of a frying pan?

• Metal, because it conducts heat.

• Wood, because it conducts heat.

• Metal, because it does not conduct heat.

• Wood, because it does not conduct heat.

Tags

NGSS.MS-PS3-3

How is heat transferred through the boiling water in a pot on a stove?

• conduction

• convection

• combustion

• radiation

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Which is the best example of convection?

• a camp fire

• a light bulb

• a hot air balloon

• a microwave oven

Tags

NGSS.MS-ESS2-6

Sarah is stirring her hot chocolate with a metal spoon, and she notices that the spoon is getting hot. This is most likely caused by which type of heat?

• conduction

• convection

• radiation

• insulation

Bill stands in a swimming pool and notices that the water around his feet is a lot cooler than the water near the surface. Which process causes this difference in temperature?

• convection

• radiation

• evaporation

• conduction

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

People sitting around a campfire are able to feel the heat from the fire. How are the people able to feel the heat from the fire without touching the fire?

• The heat from the fire travels through the ground and heats the

  ground around the people.

• The heat from the fire is conducted through air molecules to the people.

• The heat from the fire rises in the air and then settles around the people.

• The heat from the fire radiates from the fire to the people.

Tags

NGSS.MS-PS4-2

A man is heating up his dinner over a campfire as shown below. Why is the man wearing gloves?

• Metal conducts heat, so the man could burn his hand.

• Metal radiates heat, so the man could burn his hand.

• Metal is helping light energy pass to the man’s hand.

• Metal is helping chemical energy pass to the man’s hand.