Heat Transfer Evaluation

You pick up a can of soda off the countertop. The countertop underneath the can feels colder than the rest of the counter. Which explanation do you think is the best?

• The cold has been transferred from the soda to the counter

• There is no heat energy left in the counter beneath the can

• Some heat has been transferred from the counter to the soda

• The heat beneath the can moves away into other parts of the countertop.

Tags

NGSS.MS-PS3-4

NGSS.MS-PS1-4

After cooking an egg in boiling water, you cool the egg by putting it into a bowl of cold water. Which of the following explains the eggs cooling process?

• Temperature is transferred from the egg to the water

• Cold moves from the water into the egg

• Energy is transferred from the water to the egg

• Energy is transferred from the egg to the water

Tags

NGSS.MS-PS3-4

NGSS.MS-PS1-4

NGSS.MS-PS3-5

Why do we wear sweaters in cold weather?

• To keep cold out

• To generate heat

• To reduce heat loss

• All of the above

Tags

NGSS.MS-PS3-3

Amy wraps her dolls in blankets, but can not understand why they do NOT warm up. Why do the dolls NOT warm up?

• The blanket she uses are probably poor insulators

• The blanket she uses are poor conductors

• The dolls are made of materials that do not hold heat well

• None of the above

As water in a freezer turns into ice...

• the water absorbs energy from the air in the freezer

• the water absorbs the coldness from the air in the freezer

• the freezer air absorbs heat from the water

• the water neither absorbs or looses energy

Tags

NGSS.MS-PS3-4

NGSS.MS-PS1-4

NGSS.MS-PS3-5

On a warm sunny day, you will feel cooler wearing light colored clothes because they...

• reflect more radiation

• prevents sweating

• are not as heavy as dark clothes

• let more air in

Tags

NGSS.MS-PS3-3

If you put a metal spoon and a wooden spoon into a pot of boiling water, one will become too hot to touch. Why???

• Metals conduct heat better than wood

• Wood conducts heat better than metals

• Metals pull in heat because heat is attracted to metals

• Wood isn't as strong as metals

Tags

NGSS.MS-PS3-4

NGSS.MS-PS3-3

On a sunny day, the upstairs room in a house are usually hotter than the downstairs rooms.....why??????

• Cool air is less dense than hot air

• Warm air rises and cool air sinks

• The upstairs rooms are closer to the sun

• Heat rises because it is attracted to the sun

Tags

NGSS.MS-ESS2-5

  You have a can of soda in your lunchbox that you want to keep cold. Which material will work best to keep it cold? 

• a.  Aluminum foil wrapped around the soda because metals transfer heat energy easily.           
• b.  A paper towel wrapped around the soda because paper soaks up the moisture
• c.  Wax paper wrapped around the soda because wax paper traps the moisture.
• d.  Your wool sweater wrapped around the soda because wool traps air.

Tags

NGSS.MS-PS3-4

NGSS.MS-PS3-3

When you hold a metal coat hanger in a camp fire to roast a marshmallow, the coat hanger might become too hot to hold. Why might the coat hanger get too hot? 

• a.  The heat radiates along the coat hanger.
• b.  The heat builds up near the flame until it can’t hold it anymore and then moves     along the coat hanger.
• c.  Metal atoms vibrate with more energy when they get hot, and they collide with   atoms near them, which causes the neighboring atoms to vibrate.
• d.  Since metals melt in fire, they react strongly to fire and get hot easily.

Tags

NGSS.MS-PS1-4