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NCFE Prep | ALL Review (Released Items)
Test Description: All 7th standards
Instructions: Answer all questions to get your test result.
1) How does the energy of a roller-coaster cart change as it travels from the top of the roller coaster the the bottom?
A
The cart has potential energy at the top that is transformed to kinetic energy as it moves to the bottom.
B
The cart has greater kinetic energy at the top than it does at the bottom.
C
The cart has no energy energy at the top and more energy at the bottom.
D
The cart has less potential energy at the top than it does at the bottom.
2) How can simple machines make work easier?
A
By decreasing the force needed to complete the task
B
By adding more work on the object than originally applied.
C
By increasing the friction between the machine and the object
D
By removing the force of gravity on the object.
3) How do forces act on a dropped object as it is falling?
A
Both gravity and air resistance are pushing up on the object.
B
Air resistance is pulling down on the object, while gravity is pushing it up.
C
Air resistance is pushing up on the object, while gravity is pulling it down.
D
Both gravity and air resistance are pulling down on the object.
4) Why does the troposphere experience the greatest amount of atmospheric pressure compared to the other atmospheric layers?
A
It contains a high concentration of gas particles
B
It is the region in which weather occurs
C
It has the highest temperatures
D
It produces the ozone layer
5) Which explains why most of the rain that falls comes from the ocean?
A
Most rivers deposit freshwater into the ocean.
B
The majority of evaporation takes place over the ocean.
C
Most clouds form near or over the ocean.
D
The majority of precipitation takes place over the ocean.
6) Barometric pressure has been dropping all day. What weather conditions will most likely occur?
A
calm weather
B
hot weather
C
sunny weather
D
stormy weather
7) A sea breeze blows from the ocean toward the shore. Why does this occur?
A
Conduction of heat from the warm water produces wind from the ocean.
B
The tide carries the wind to the shore as it moves back and forth.
C
High pressure over the land causes a downdraft to occur.
D
Air over land heats faster than air over water, which causes convection.
8) Which two organisms contain chloroplasts and eyespots?
A
euglena and amoeba
B
volvox and euglena
C
paramecium and volvox
D
amoeba and paramecium
9) How do a paramecium and an amoeba obtain food to live?
A
A paramecium and an amoeba both use contractile vacuoles to capture food.
B
A paramecium and an amoeba both make their own food through photosynthesis.
C
A paramecium uses pseudopods to capture food, while an amoeba uses chloroplasts to make its food.
D
A paramecium collects food in an oral groove, while an amoeba uses pseudopods to surround food.
10) Tina observed a cell under a microscope. She concluded that it was a plant cell instead of an animal cell. Which structure helped her come to this conclusion?
A
She saw a cell membrane, which animal cells lack.
B
She saw a chloroplast, which animal cells lack.
C
She saw a vacuole, which animal cells lack.
D
She saw a nucleus, which animal cells lack.
11) Which is a function of the respiratory system?
A
to provide the body with carbon dioxide, which reacts with food to produce energy
B
to provide the cells with water, which is used as a source of energy
C
to provide the cells with glucose, which is used as a source of energy
D
to provide the body with oxygen, which reacts with food to produce energy
12) Why would the offspring resulting from fertilization have more differences than the offspring resulting from budding?
A
Two parents provide all of their genes to their offspring during budding, unlike during fertilization.
B
Each parent provides half of its genes to its offspring during fertilization, unlike during budding.
C
Each parent provides half of its genes to its offspring during budding, unlike during fertilization
D
Two parents provide all of their genes to their offspring during fertilization, unlike during budding
13) Two black guinea pigs were crossed and they produced a litter of 4 black and 3 white guinea pigs. Which best explains this occurrence?
A
White fur is dominant to black fur
B
White fur was the result of a mutation
C
Both parents were homozygous for black fur
D
Both parents were heterozygous for black fur
14) Doppler radar shows a vertical rotation column of air with high wind speeds. Which is most likely occurring?
A
approaching warm front
B
approaching snowstorm
C
the formation of a tornado
D
the formation of a hurricane
15) How are tissues and organs related?
A
Groups of organs work together to make up a single tissue.
B
Groups of tissues form cells, which work together to make up a single organ.
C
Groups of tissues work together to make up a single organ.
D
Groups of organs form cells, which work together to make up a single tissue.
16) How does the cell wall of a plant compare to the plasma membrane of an animal cell?
A
The cell wall converts sunlight into sugars; the plasma membrane controls energy production in the cell.
B
The cell wall provides structure + support; the plasma membrane controls the substances that enter and leave the cell.
C
The cell wall provides structure + support; the plasma membrane is surrounded by a structure that contains genetic informatio
D
The cell wall controls what enters and leaves the plant cell; the plasma membrane provides mostly structure + support
17) How do forces act on a dropped object as it is falling?
A
Both gravity and air resistance are pulling down on the object.
B
Both gravity and air resistance are pushing up on the object.
C
Air resistance is pushing up on the object while gravity is pulling it down.
D
Air resistance is pulling down the object while gravity is pushing it up.
*select an answer for all questions
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