Energy!

How is the entropy of the universe changing over time?

• dissipating

• decreasing

• dispelling

• increasing

Finish this statement: "During any energy conversion, some of the..."

• energy is lost as heat

• energy is completely converted

• energy remains constant

• energy is gained

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NGSS.HS-PS3-3

NGSS.HS-PS3-4

When has a natural process defied the laws of thermodynamics? (5 Points)

• Never, as natural processes cannot defy the laws of thermodynamics.

• During the Big Bang.

• In black holes.

• In perpetual motion machines.

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NGSS.HS-PS3-4

Windmills transform wind energy into _______ energy. (5 Points)

• mechanical

• thermal

• chemical

• electrical

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NGSS.HS-PS3-3

If 200 J of energy is consumed, how many Joules of energy is produced if the system is 100% efficient?

• 200 J

• 100 J

• 0 J

• 400 J

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NGSS.HS-PS3-1

What is the result of a decrease of entropy in one part of the universe?

• Increase in entropy elsewhere

• Decrease in total energy

• Creation of matter

• Destruction of energy

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NGSS.HS-PS3-4

Energy conversions only occur through man-made devices.

• True

• False

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NGSS.HS-PS3-3

Finish this statement from your reading: "During any energy conversion, some of the energy is changed to an ________."

• unusable form

• usable form

• efficient form

• renewable form

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NGSS.HS-PS3-4

When food coloring is dropped into water the particles of color spread out and are less organized than before. This process is called?

• Diffusion

• Osmosis

• Evaporation

• Condensation

__________ is the study of the movement and conversion of energy. (5 Points)

• conduction

• thermodynamics

• optics

• kinetics

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NGSS.HS-PS3-2

NGSS.HS-PS3-4