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- 1. Multiple Choice
Which plant feature shown in the model allows the shade plants to better convert sunlight during photosynthesis in shaded areas?
fewer leaves
vertical leaf position
larger chloroplasts
smaller plant cells
- 2. Multiple Choice
The Red Bayou project in northwest Louisiana allows farmers to use river water diverted from the Red River when irrigating their crops. The amount of groundwater used for irrigation most likely ___________ as more diverted river water became available.
increased
decreased
stayed the same
- 3. Multiple Choice
The Red Bayou project in northwest Louisiana allows farmers to use river water diverted from the Red River when irrigating their crops. The amount of surface water used for irrigation most likely ___________ as more diverted river water became available.
increased
decreased
stayed the same
- 4. Multiple Choice
The Red Bayou project in northwest Louisiana allows farmers to use river water diverted from the Red River when irrigating their crops. Which change would most likely occur after diverting river water for us in irrigation?
an increase in soil erosion
an increase in flooding in the river
an increase in the amount of water needed to water crops
an increase in sediment, nutrients, and salts on crop soil
- 5. Multiple Choice
Which moon phase belongs in box #1?
Phase W
Phase X
Phase Y
Phase Z
- 6. Multiple Choice
Which moon phase belongs in box #2?
Phase W
Phase X
Phase Y
Phase Z
- 7. Multiple Choice
The students decide to investigate how the mass of each marble affects its kinetic energy. The students will roll each marble down the first hill on the track. They will then compare the results for the kinetic energy of both the ceramic marble and the steel marble. Which figure best compares the kinetic energy of each marble when the marbles roll down the hill on the track?
- 8. Multiple Choice
The speed of the marble at point L will be _______ as the speed of the marble at point M.
faster than
slower than
the same as
- 9. Multiple Choice
The speed of the marble at point N will be _______ as the speed of the marble at point M.
faster than
slower than
the same as
- 10. Multiple Choice
For the 3 points measured on the track, the marble will have the most Kinetic energy at ______.
point L
point M
point N
- 11. Multiple Choice
For the 3 points measured on the track, the marble will have the least Kinetic energy at ______.
point L
point M
point N
- 12. Multiple Choice
Which figure best shows how the potential energy of a marble changes as the marble travels along the track?
- 13. Multiple Choice
Based on Figure 2, at which points along the marble track is the potential energy of the marble increasing? Select 2 correct answers
point 1
point 2
point 3
point 4
point 5
- 14. Multiple Choice
The students determine that the total energy of the marble decreases slightly as the marble travels along the track. Which statement describes the most likely cause of this decrease in total energy?
Some of the marble's energy is destroyed by the wooden blocks as the marble rolls along the track.
Some of the marble's energy is transferred to the surface of the track as the marble rolls along the track.
Some of the marble's energy is transferred to the wooden blocks as the marble rolls along the track.
Some of the marble's energy is destroyed by the surface of the track as the marble rolls along the track.
- 15. Multiple Choice
The students want to see how changes to the design of the marble track will affect the energy of the marble.
Part A One student wants to increase the potential energy of the marble at the starting position. Explain one way the students can adjust the track to increase the marble's potential energy.
Describe the dimensions of any materials used to adjust the track. Which is the best description?
Replace block Y and use a block with a greater height then block Y
Replace block X and use a block with a greater height then block X
Replace block Z and use a block with a greater height then block Z
Replace block X and use a block with a lower height then block X
- 16. Multiple Choice
The students want to see how changes to the design of the marble track will affect the energy of the marble.
Part A One student wants to increase the potential energy of the marble at the starting position. Explain one way the students can adjust the track to increase the marble's potential energy.
Explain why the adjustment to the track would increase the marble's potential energy.
Potential energy will increase with the higher new block replacing block Y
Potential energy will increase with the higher new block replacing block Z
Potential energy will increase with the higher new block replacing block X
- 17. Fill in the Blank
Another student wants to use another marble that will have a greater kinetic energy than either the ceramic marble or the steel marble at each point along the track. Explain how the mass and size of the third marble should compare to the masses and sizes of the ceramic and steel marbles.
1. Marble mass should be (doubled/tripled)
2. Marble size should be (bigger/kept the same)
3. Kinetic Energy only increases proportionally with an (increase/decrease) in mass.
4. Kinetic energy (increases/decreases) with the square of the speed.
- 18. Fill in the Blank
One student wants to change the track so that the potential energy of the marble from point 1 to point 5 is constant. Explain how the student could change the track so that the potential energy of the marble is constant and explain why that change will keep the potential energy constant.
1. Make the track height (uneven/equal) all along the track which will result in a constant potential energy.
2. Potential Energy depends on (height/length)
- 19. Multiple Choice
Based on the information in the moon phase model, which statement best predicts how the phases of the moon will look as the moon continues its orbits around Earth in the model?
The moon will become brighter with no dark areas as the moon moves closer to the sun.
The moon will again appear completely dark and the dark area will decrease in size until the moon is completely bright.
A dark area will start to appear on the right side of the moon and will slowly increase in size until the moon is completely dark.
A dark area will start to appear on the left side of the moon and will slowly increase in size until the moon is completely dark.
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