Question 1
15 pts
(01.01 MC)
The table shows the commonly eaten foods of some groups of organisms.
Commonly Eaten Foods List
Group Commonly Eaten Foods
A squid, crabs, lobsters
B branches, barks, twigs, roots
C insects, leaves, nuts, bird eggs
D vegetables, fish, grains, fruits
Which groups contain both primary and secondary consumers?
Group of answer choices
A and B
B and C
C and D
B and D
Flag question: Question 2
Question
27 pts
(01.01 HC)
Describe the role of decomposers in a food web. Based on your description, justify why a rotten fruit is not truly wasted.
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Flag question: Question 3
Question
35 pts
(01.01 LC)
A food web illustrates a snake eating a rat. What is the role of the snake in the food web?
Group of answer choices
Decomposer
Secondary consumer
Primary consumer
Producer
Flag question: Question 4
Question 45 pts
(01.01 MC)
According to this food web, which of the following would be considered primary consumers?
Food web starting with sun and pointing to grasshopper and squirrel; Grasshopper pointing to squirrel, wolf, and snake; squirrel pointing to wolf, snake, and bird; wolf pointing to decomposition with worms and mushrooms; snake pointing to wolf and decomposition with worms and mushrooms; bird pointing to decomposition with worms and mushrooms; decomposition pointing to the sun stating soil nutrients.
Group of answer choices
Grasshoppers
Plants
Wolves
Mushrooms
Flag question: Question 5
Question 55 pts
(01.03 LC)
What energy transformation occurs when a battery-powered toy car is set into motion when it is switched on?
Group of answer choices
chemical to mechanical to electrical
electrical to mechanical to chemical
electrical to chemical to mechanical
chemical to electrical to mechanical
Flag question: Question 6
Question 65 pts
(01.03 MC)
Which action best demonstrates the transformation of mechanical energy to heat energy and light energy?
Group of answer choices
striking a matchstick
squeezing a sponge ball
rubbing hands vigorously
releasing a stretched spring
Flag question: Question 7
Question 75 pts
(01.03 MC)
What best describes the dropping height of a ball that bounced back up to a height of 45 centimeters?
Group of answer choices
Less than 45 centimeters, as the ball transforms some of its thermal energy into potential energy
Greater than 45 centimeters, as the ball transforms some of its thermal energy into potential energy
Less than 45 centimeters, as the ball transforms some of its potential energy into thermal energy and sound energy
Greater than 45 centimeters, as the ball transforms some of its potential energy into thermal energy and sound energy
Flag question: Question 8
Question 85 pts
(01.03 LC)
What type of energy is produced by a geyser?
Group of answer choices
Chemical energy
Thermal energy
Nuclear energy
Radiant energy
Flag question: Question 9
Question 95 pts
(01.03 LC)
Which of the following has mechanical energy?
Group of answer choices
Car battery
Compressed spring
Glowing incandescent lightbulb
Nucleus of uranium atom
Flag question: Question 10
Question 105 pts
(01.03 MC)
A wind turbine is used to power a generator. The wind turbine transforms kinetic energy into what form of energy?
Group of answer choices
Gravitational energy
Electrical energy
Radiant energy
Thermal energy
Flag question: Question 11
Question 115 pts
(01.03 LC)
What best describes the advantage of using the model of a food web?
Group of answer choices
Predicts food availability in nature
Shows a network of food chains
Shows a complicated physical model
Investigates the problems among prey and predators
Flag question: Question 12
Question 125 pts
(01.04 MC)
What is the most likely evidence of an energy transformation taking place when a hotplate that has a beaker containing solid wax placed on it is turned on?
Group of answer choices
Wax starts melting as kinetic energy is transformed into thermal energy
Beaker starts moving as kinetic energy is transformed into thermal energy
Wax starts melting as kinetic energy is transformed into gravitational energy
Beaker starts moving as kinetic energy is transformed into gravitational energy
Flag question: Question 13
Question 137 pts
(01.04 HC)
Explain how the energy of a rubber ball is transformed as it rolls down a ramp. Give evidence that the energy of the ball remains the same at all points on the ramp.
ASAP
