Energy & Equilibria

A lake with a stream flowing into it, but with water lost only by evaporation, is an example of a system which is *

• isolated

• stable and closed

• unstable and closed

• open

Tags

NGSS.MS-ESS2-4

Inputs to a closed system may be

• matter only

• energy only

• matter and energy

• heat only

Tags

NGSS.HS-PS3-4

Leaching of soil nutrients is an example of

• transfer of materials

• transformation of materials

• transfer of energy

• trasnformation of energy

Tags

NGSS.MS-ESS2-1

NGSS.MS-LS2-1

NGSS.MS-LS2-3

NGSS.MS-LS2-4

Which is an example of negative feedback

• loss of vegetation leading to soil erosion leading to further loss of vegetation

• a decline in a large predator population after they have eaten most of their prey population

• melting of permafrost in the tundra due to climatic change leading to further release of methane, causing further change

• unsustainable slash and burn agriculture practices in tropical rainforests.

Tags

NGSS.HS-LS2-6

NGSS.HS-LS4-5

What is the best description for this image

• static equilibrium

• steady state equilibrium

• tipping point

• unstable equilibrium

Tags

NGSS.HS-LS2-6

NGSS.HS-LS2-4

This exemplifies what law of thermodynamics

• 1st law

• 2nd law

Tags

NGSS.HS-PS3-4

A ________________ feedback loop makes a system more stable.

• Positive

• Neutral

• Negative

• Circular

Tags

NGSS.HS-LS1-3

A _________________ feedback loop moves a system to an extreme.

• Positive

• Neutral

• Circular

• Negative

Tags

NGSS.HS-LS1-3

Polar Ice Caps are melting due to an increase in Earth's temperature. This lowers the albedo of Earth, which in turn increases Earth's temperature. This is an example of what type of feedback?

• Negative

• Neutral

• Positive

• Ecosystem

Tags

NGSS.HS-ESS2-4

NGSS.HS-ESS2-2

An increase in Carbon Dioxide levels in the atmosphere could lead to which of the following?

• Increase in temperature on Earth

• Decrease in Albedo on Earth

• Change in overall climate on Earth

• All of the above

Tags

NGSS.HS-ESS2-4

NGSS.HS-ESS2-6

NGSS.HS-ESS3-5