force and Energy
Chemistry
Ecological succession, weather, climate
Organisms& environment, cell organelles
Universe, Earth, space
100
Which law says objects stay at rest unless acted on by a force?
Newtons first law
100
How is a chemical change different from a physical change?
a chemical change creates a new substance
100
What is the difference between weather and climate?
Climate
- Long-term pattern of weather in an area
- Measured over many years (20–30+ years)
Weather
- Short-term conditions of the atmosphere
- Changes day to day or hour to hour
100
which organelles are only found in plant cells?
Cell wall and Chlorplast
100
Where on HR diagram is the star located and what is the averge temperature?
Main sequence and 6000 K
200
If you push harder on a shopping cart, what happens to its motion? And what law is being applied?
It accelerates more (Second Law)
200
What is the number in front of the element called? And what do you do with it?
coefficient and multiply it by the atoms of each element in the equation
200
- What type of succession begins in an area with no soil?
- What pioneer species (plants) grow in primary succession?
Primary succession
lichen and mosses
200
What happens to energy as you move up an energy pyramid? And how much do each level lose as you go up in the pyramid?
Decreases, 10%
200
What galaxy do we live in?
A. Andromeda Galaxy
B. Whirlpool Galaxy
C. Milky Way
D. Sombrero Galaxy
C. Milky Way
300
When a swimmer pushes backward on the water, they move forward. Which statement best explains this?
A. The swimmer’s mass decreases in water
B. The water pushes back on the swimmer with an equal and opposite force
C. The swimmer stops moving due to inertia
D. The water has no effect on the swimmer
B. The water pushes back on the swimmer with an equal and opposite force
300
How many atoms of carbon (C) are in 5C66H12O6COC?
32
300
Which of the following could lead to secondary succession?
Select two correct answers.
- A volcanic eruption
- A variety of infectious plant diseases wipe out an area of vegetation.
- A wildfire destroys a forest, leaving only the soil.
- A glacier retreats, leaving only bare rock.
- Small, salt-tolerant plant species move into a sand dune.
- A variety of infectious plant diseases wipe out an area of vegetation.
- A wildfire destroys a forest, leaving only the soil.
300
As the number of species becoming extinct increases, what do you think will happen to biodiversity and the ability of an ecosystem to sustain itself?
A)It will improve.
B)It will reduce.
C)It will not change.
D)Extinction is not linked to biodiversity.
It will reduce
300
What does the H-R diagram compare?
Brightness (luminosity) and temperature
400
A 256 kg bike accelerates at 4 m/s2. what was the force?
1,024 N
400
How many atoms in all are in a molecule of serotonin?
C10H12N2O
25
400
- What type of storm forms over warm ocean water and has strong rotating winds?
- What is the main source of energy for hurricanes?
- What does the temperature need to be?
hurricane
warm ocean water
79 degrees F.
400
owl
400
What is the hottest white star on the diagram below?
- A)β Centauri
- B)Vega
- C)Altair
- D)Sirius B
D) Sirius B
500
If the net force of a box is 325 N and the box is accelerating at 50 m/s2, what is the mass of the box?
6.5 g
500
What is the Law of conservation of Mass? And is it being applied in in the equation below?
2HgO → 2Hg + O2
Matter is neither created or destroyed by chemical reactions or physical change! And yes
500
The Sun’s energy influences climate in a variety of ways. One of the ways is how the latitudes at the equator receive more energy from the Sun and have warmer temperatures. How does the Sun most directly influence the precipitation in the area?
A)The Sun’s energy drives the cold fronts, which determines precipitation.
B)The Sun’s energy drives the hydrosphere, which determines precipitation.
C)The Sun’s energy drives hurricanes, which determines precipitation.
D)The Sun’s energy drives the wind currents, which determines precipitation.
B)The Sun’s energy drives the hydrosphere, which determines precipitation.
500
- Study the food web provided. If there were a drought that killed most of the grass, the grasshopper population would greatly decrease. What effect would this have on the other populations?
Select two correct answers.
- The snake and shrew would have a food source eliminated.
- More of the shrubs would be available for the rabbit, deer, and squirrel.
- The rabbit and squirrel would have their food source eliminated and could die out.
- The shrubs could become overpopulated with no other organisms to eat it.
- The insect-eating bird would have its food source decreased and may decrease as well.
More of the shrubs would be available for the rabbit, deer, and squirrel.
The insect-eating bird would have its food source decreased and may decrease as well.
500
Many solar systems, including Earth’s solar system, are located in the Milky Way galaxy. Where can Earth’s solar system be found?
A)Earth’s solar system is closer to the center of the Milky Way on the Sagittarius Arm.
B)Earth’s solar system is closer to the center of the Milky Way on the Perseus Arm.
C)Earth’s solar system is closer to the edge of the Milky Way on the Orion Arm.
D)Earth’s solar system is in the center of the Milky way
- C)Earth’s solar system is closer to the edge of the Milky Way on the Orion Arm.