Matter and Energy
How many molecules of glucose are in the photosynthesis equation?
6CO2+ 6H2O →C6H12O6+ 6O2
1 molecule
Students were given four air propelled rockets to launch into the air. The data is recorded below.
Which rocket had the greatest acceleration?
Rocket 1 Mass = 2.5 Force = 20
Rocket 2 Mass = 4.0 Force = 16
Rocket 3 Mass = 9.0 Force = 36
Rocket 1
Which of the following is NOT a true statement about the Hertzsprung-Russell diagram?
A The Hertzsprung-Russell diagram graphs a star’s brightness and temperature.
B Brighter stars are located higher on the diagram.
C Cooler stars are located further to the right on the diagram.
D The Hertzsprung-Russell diagram shows you a star’s location in the sky.
D
Grass--> Beetle-->Mouse-->Fox
Grass--> Mouse-->Snake
How would the flow of energy in the food web most likely be disrupted if the population of grass suddenly became diseased or burned in a wildfire?
A The primary consumer populations would increase shortly after.
B The primary consumer populations would decrease shortly after.
C All of the populations in the food web would thrive.
D All of the populations would be unaffected
B The primary consumer populations would decrease shortly after.
Which of the following correctly identifies a liquid based on the properties listed in the table?
1. Particles are too tightly packed to overcome the force of attraction between them; will not take the shape of its container
2Particles are far apart enough to completely overcome the force of attraction between them; expands to take the shape and volume of its container
3Particles have enough kinetic energy to partially overcome the force of attraction between them; volume stays the same
3Particles have enough kinetic energy to partially overcome the force of attraction between them; volume stays the same
A student notices that an inflated balloon gets larger when it is warmed up by a lamp. Which best describes the mass of the balloon because of this change?
A The mass of the balloon stays the same because the gas inside the balloon still has the same mass after it warms up.
B The mass of the balloon increases because the size of the balloon has increased.
C The mass of the balloon decreases because the temperature inside the balloon has increased.
D The mass of the balloon increases because the temperature of the balloon has increased.
A
Which of the following statements do NOT describe acceleration?
I. A car speeding up after a traffic light turns green.
II.A car moving a constant speed with the cruise control set.
III.A car slowing down as it approaches a stop sign.
IV.A car turning into a parking spot and stopping.
only II
Which statements are true about the life cycle of stars? Select TWO answers.
I. All stars will supernova and then become black holes.
II. After main sequence, a star’s life cycle is determined by its mass.
III. Average mass stars will become neutron stars.
IV. Black dwarf is the stage after white dwarf.
V. Main sequence is the first stage in the life cycle of a star
II and IV
Which statement(s) describe a disruption in the transfer of energy? Pick 2
I. Overfishing has depleted the population of tuna.
II. Snakes are commonly hunted and eaten by birds of prey.
III. Caterpillars and other insects feed on grasses.
IV. Excess fertilizer runs off into a river and causes extreme algae growth and a lack of oxygen in the water.
I. Overfishing has depleted the population of tuna.
IV. Excess fertilizer runs off into a river and causes extreme algae growth and a lack of oxygen in the water.
Which of the following occurs when the temperature of a substance increases?
A The volume of the substance increases.
B The kinetic energy of its particles will increase.
C The mass of the substance will increase.
D The substance will expand
B The kinetic energy of its particles will increase.
Which property of water will allow a paperclip to remain floating on top of the water?
A Adhesion C Cohesion
B Surface tension D Buoyancy
B
A child is sitting in a car seat with the seat belt strapped. The car travels 50 miles per hour. What will happen to the child if the driver stops abruptly?
A. The child will not move.
B. The child will move backwards.
C. The child will move forward.
D. The child will move down.
C. The child will move forward
__________ galaxies are random and scattered and do not form a distinct shape or pattern. __________ galaxies are flat and disk-shaped with a central bulge and arms that extend outward. ________ galaxies have a smooth, circular shape.
A. Irregular, Elliptical, Spiral
B. Spiral, Elliptical, Irregular
C. Elliptical, Irregular, Spiral
D. Irregular, Spiral, Elliptical
D
Which statements are accurate in describing secondary succession only? Select TWO correct answers
Primary and Secondary Ecological Succession
I. Formation and regrowth of an ecosystem after a disturbance
II. A new island forming after a volcanic eruption
III. An ecosystem formed where nothing previously existed
IV. Process takes a longer amount of time to occur
V. Process takes a shorter amount of time to occur
I. Formation and regrowth of an ecosystem after a disturbance
V. Process takes a shorter amount of time to occur
How would a mixture that is composed of mixed nuts be classified?
A Heterogeneous Mixture
B Pure Substance
C Homogeneous Mixture
D Compound
A Heterogeneous Mixture
The table below shows the chemical formulas of four different substances. Which substances have the same number of carbon atoms?
1-C2H6O
2-C8H18
3-CH3CH2Br
4-C4H10O
1 and 3
As the frequency of a transverse wave __________, the wavelength of the same transverse wave _________.
a. Increases, decreases
b. Increases, Stays the same
c. decreases, increases
d. stay the same, stay the same
A
Several characteristics of theories of the origin of the universe are listed below. Which of the characteristics describe the Big Bang theory only? Pick 3
I. Occurred over 14 billion years ago
II. Most widely accepted theory of the origin of the universe
III. The universe goes through a series of cycles, each involving an explosion followed by expansion and contraction
IV. An explosion occurred from an extremely small, dense, and hot bit of matter
V. The universe originated from debris exiting a black hole
I. Occurred over 14 billion years ago
II. Most widely accepted theory of the origin of the universe
IV. An explosion occurred from an extremely small, dense, and hot bit of matter
Organism Adaptations
Sharp teeth, Thick stem and leaves, Webbed feet, long claws, Narrow beak and ??
Based on the chart, which of the following blongs in the missing box?
A Hibernation
B Migration
C Shallow root system
D Producing venom
C Shallow root system
Which of the following observations is an indication that a chemical reaction has occurred?
A Two liquids of the same color are mixed and and turn a new color.
B A pot of sugar boils and the sugar granules dissolve.
C Water boils and steam forms.
D A clear solution is frozen and a solid forms.
B A pot of sugar boils and the sugar granules dissolve.
Which tables correctly label the compounds and elements involved in this process?
Table A
Water=Compound
Hydrogen=Compound
Oxygen= Element
Table B
Water=Compound
Hydrogen=Element
Oxygen=Compound
Table C
Water= Compound
Hydrogen=Element
Oxygen= Element
C
A scientist is researching devices that will kill harmful cells in the human body using high-energy waves. Which type of wave would be the most effective?
A X-Rays would be the most effective because they have a long wavelength and a low frequency.
B Gamma rays would be the most effective because they have a short wavelength and a high frequency.
C Radio waves would be the most effective because they have the highest frequency.
D Visible light would be the most effective because you can see what is being treated.
B Gamma rays would be the most effective because they have a short wavelength and a high frequency.
Humans can have a significant influence on the environment. From burning fossil fuels for electricity to new construction in cities, there are many negative impacts that occur. Which of the following is a positive influence humans can have on the environment over time?
A. Cutting down large areas of trees for residential homes.
B. Clearing areas of land in order to raise more livestock.
C. Moving out to rural areas to build more buildings and businesses.
D. Carpooling to work or school in order to save fuel
D. Carpooling to work or school in order to save fuel
Which of the following statements correctly identifies the function of the mitochondria in an animal cell?
A Mitochondria control what is able to come in and out of the cell.
B Mitochondria are a rigid layer that provides support, strength, and shape for the cell.
C Mitochondria produce the energy needed for the cell to carry out its functions.
D Mitochondria hook amino acids together to make proteins
C Mitochondria produce the energy needed for the cell to carry out its functions.
Metal Cube, Sink, Denser than water
Wooden Cube, Float, Less dense than water
Plastic Cube, Float, Less dense than water
Based on the observations from the table above, which is a valid conclusion?
A Objects that are more dense than water will float.
B Objects that are cubes will sink.
C Objects that are less dense than water will sink.
D Objects that are less dense than water will float.
D Objects that are less dense than water will float.