NGSS.MS-PS1-4

A house burns down. The vinyl siding of the house next door warps due to

• conduction
• convection
• radiation

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NGSS.MS-PS1-4

Thermal energy always moves from ____________ objects to ______________ objects.

• cooler, warmer
• warmer, cooler
• faster, slower
• slower, faster

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NGSS.MS-PS1-4

When 20 grams of potassium chlorate, KClO₃, is dissolved in 100 grams of water at 80 ºC, the solution can be correctly described as:

• supersaturated
• saturated
• unsaturated

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NGSS.MS-PS1-4

The average amount of energy of motion of molecules in a substance is called

• thermal energy

• heat energy

• conduction

• temperature

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NGSS.MS-PS1-4

After a chemical reaction, the beaker feels cold to the touch. This is likely a ____________ reaction.

• negative

• positive

• endothermic

• exothermic

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NGSS.MS-PS1-4

The boiling point of a substance is affected by

• the pressure of the air above the substance

• the mass of the substance

• the amount of surface tension the substance has

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NGSS.MS-PS1-4

Two objects are touching.

How is heat transferred from one object to the other?

• conduction

• convection

• radiation

• reflection

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NGSS.MS-PS1-4

This is a lava lamp. When the light bulb heats the wax, the wax rises. When the wax cools, it falls. This cycle of rising/falling is an example of:

• Conduction.
• Convection.
• Radiation.

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NGSS.MS-PS1-4

The diagrams below represent different ways heat is transferred. The arrows in the diagrams show the direction of heat transfer.

Which table shows the primary way heat is transferred in each diagram?

• 
• 
• 
• 

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NGSS.MS-PS1-4

When a substance cools, it loses __________ energy to its surroundings.

• thermal

• chemical

• electrical

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NGSS.MS-PS1-4