Heat Transfer - Pre-Test

 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-PS1-4

  Amy wraps her dolls in blankets but can’t understand why they don’t warm up. Why don’t they warm up?

• The blankets she uses are probably poor insulators.
• The blankets she uses are probably poor conductors.
• The dolls are made of materials which don’t hold heat well.
• None of the above.

Tags

NGSS.MS-PS3-3

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 nor releases energy

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NGSS.MS-PS1-4

NGSS.MS-PS3-4

NGSS.MS-PS3-5

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

• reflect more radiated heat energy.
• prevent 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-PS3-3

NGSS.MS-PS3-4

On a hot day, the upstairs rooms 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 roof insulation warms the air.
• Heat rises.

Tags

NGSS.MS-PS1-4

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

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

Tags

NGSS.MS-ETS1-2

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?

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

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-5

An aluminum plate and a plastic plate have been in the freezer all night long. When you remove them the next morning,

• The plates are the same temperature.
• The plastic plate has a higher temperature.
• The plastic plate has a lower temperature.
• The aluminum plate has a lower temperature.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

When placed in direct sunlight, which object will absorb the most radiated heat energy?

• A white sweater
• A snowball
• Aluminum foil
• A black sweater

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-3

NGSS.MS-PS3-4