Which best explains why a bowl becomes warm after holding hot soup?

• The heat is radiated from the soup to the bowl.

• The heat is returned to the bowl once the soup is cooled.

• The heat moves through convection from the soup to the bowl.

• The heat moves through conduction from the soup to the bowl.

Which best describes an example of heat transfer through radiation?

• getting warm in front of a portable heater

• burning your finger on a curling iron

• ironing a dress shirt and tie

• cooking soup on the stove

Tags

NGSS.MS-PS4-2

Which best describes heat transfer due to convection?

• It occurs with direct contact.

• It occurs only during the day.

• It occurs with movement of a fluid.

• It occurs only when something is burning.

A dark-colored wall becomes warm when the sun shines on it. After sunset, a person standing a meter away can feel warmth from the wall. How does heat transfer from the wall to the person?

• radiation

• conduction

• convection

• insulation

On a hot summer day, a student dropped an ice cube onto a park bench.

Within minutes, the ice cube melted. Which best describes the process

the student observed?

• radiation

• combustion

• conduction

• convection

Tags

NGSS.MS-PS1-4

Which is an example of heat transfer by convection?

• a glowing light bulb

• heating the atmosphere

• cooking using a microwave oven

• heating a piece of metal in a flame

Which best exemplifies how heat is transferred by radiation?

• sand becoming hot in the sunlight

• metal handle on a pan becoming hot

• metal ice rack thawing in the refrigerator

• blanket holding body heat to keep a person warm

Tags

NGSS.MS-PS4-2

Which best explains how bacon is fried on a stove burner?

• The bacon creates a convection current, the heat rises to the pan,

  and then rises to the stove burner.

• The bacon transfers heat directly to the pan, and the pan transfers

  heat directly to the stove burner.

• The stove burner radiates heat to the pan, and the pan radiates heat

  to the bacon.

• The stove burner transfers heat directly to the pan, and the pan

  directly transfers heat to the bacon.

Tags

NGSS.MS-PS3-4

Joe wants to slide down on a sunny day, but the slide is too hot. Which

is most likely the reason for the slide being hot?

• radiation from the sun

• convection from the sun

• conduction from the sun

• transpiration from the sun

Molly notices hot sparks rising from a campfire. She knows the sparks are

hot, because they are red. Which best explains the hot sparks rising?

• The sparks are rising due to radiated heat.

• The sparks are rising due to heat being conducted.

• The sparks are rising, and heat rises, proving this is convection.

• The sparks are rising to replace warm air, so the sparks are

  convecting heat.