Phase Change Icy Heat Reading

What is the major problem caused by ice-covered roads in cold areas?

• Potholes

• Accidents

• Traffic jams

• Construction delays

How do engineers plan to melt ice and clear it off roads?

• Installing heating lamps

• Using chemical sprays

• Sprinkling salt

• Running electric currents through the road surface

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In science and engineering, what is the term used for the energy transferred to make ice change phase from solid to liquid?

• Heat

• Sound

• Electricity

• Light

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Why would the new type of road surface not feel hot to the touch even when it's melting the ice?

• It has insulating properties

• It has a lower temperature than your body

• It has a higher temperature than your body

• It is made of ice

What is the specific meaning of the word 'heat' in science?

• Volume

• Thermal energy moving from one place to the other

• Temperature

• Kinetic energy

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What happens when two objects with different temperatures touch?

• Both objects change temperature

• No heat transfer occurs

• Heat transfers from the warmer object to the colder object

• Heat transfers from the colder object to the warmer object

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Why does an ice cube always feel cold to the touch?

• It has a low thermal conductivity

• It has a high melting point

• It has a low specific heat capacity

• Heat transfers from our hands to the ice

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What would happen if an ice cube came into contact with a piece of dry ice?

• The dry ice would transfer heat to the ice cube

• The ice cube would transfer heat to the dry ice

• Both objects would remain at the same temperature

• No heat transfer would occur

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According to the article, what is dry ice?

• Dry ice is a frozen form of water.
• Dry ice is liquid nitrogen.
• Dry ice is solid carbon dioxide.
• Dry ice is a type of ice used for cooling.

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Does an ice cube have thermal energy?

• No, an ice cube has no thermal energy.
• An ice cube only has potential energy.
• Yes, an ice cube has thermal energy.
• Ice cubes are at absolute zero and have no energy.

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