Science Heat

Which is the hottest star in solar system?

• sun

• comet

• saggitarius

• asteroid

When a hot object touches a cooler object, heat energy is transferred from the warmer object to the cooler object through:

• radiation

• electrical energy

• conduction

• solar heating

You and your family are sitting around a campfire.  You can feel the heat on your face, even when you back your seat away from the fire.  The heat energy from the fire warms your face through:

• light energy from the fire

• conduction

• chemical reactions in the fire

• radiation

Which energy transformation occurs in a toaster?

• chemical to electric

• electric to thermal

• kinetic to chemical

• thermal to potential

The energy coming in to from the sun minus the energy being radiated out is known as

• the greenhouse effect

• global warming

• Earth's energy budget

• the electromagnetic spectrum

Tags

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According to the diagram, what can happen when solar energy hits clouds in Earth's atmosphere?

• it can be reflected or absorbed

• it can only be absorbed

• it can only be reflected

• it is neither reflected nor absorbed

What can you infer about the temperature for E.coli bacterial growth?

• E. coli does not grow well at low and high temperatures.

• E coli will continue to grow at very high temperatures.

• E.coli grows best at very low temperatures

• E.coli grows best at very high temperatures.

Tags

NGSS.MS-LS1-5

Warm air rises and cool air sinks due to...

• Radiation

• Convection

• Conduction

Tags

NGSS.MS-ESS2-6

What is the primary method of heat transfer in a vacuum?

• Conduction

• Convection

• Radiation

• Conduction and Convection

Which of the following materials is the best conductor of heat?

• Wood

• Plastic

• Copper

• Glass

Tags

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NGSS.MS-PS3-4