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WorksheetsPhysical Science Review Check
Total questions: 13
Worksheet time: 7mins
Janice is learning about compounds. Which of the following best
describes a compound?
a substance made up purely of one element
a group of substances that are either acids or bases
a group of substances that can be separated by a physical change
a substance made up of two or more elements that are chemically
combined
Atoms are made up of subatomic particles, including neutrons. Which of
the following describes a neutron?
has a greater volume than the electron cloud
has more mass than the nucleus
has no charge
has no mass
Mandy applies the brakes on her bicycle and stops quickly to avoid
hitting a basketball that bounces into the street. Which of the following
best explains what happens to the bicycle’s kinetic energy?
It increases because the tires make a screeching noise.
It is destroyed because Mandy stops the bicycle quickly.
It remains the same because Mandy is the source of energy.
It is transformed to heat because the tires are slowed by friction.
A space probe lands on a planet that has half the pull of gravity as Earth.
What effect does this have on the space probe’s weight and mass?
Its weight is reduced to half its weight on Earth, and its mass
remains the same as on Earth.
Its weight remains the same as on Earth, and its mass is reduced to
half its mass on Earth.
Both its weight and mass are half of what they are on Earth.
Both its weight and mass remain the same as on Earth.
Students compared the solubility of sodium chloride (NaCl)
and potassium chloride (KCl) in water at different temperatures.
They recorded their results as mass, in grams (g), dissolved in
100 milliliters (mL) of water at different temperatures, in degrees
Celsius (°C), as shown in the graph.
Which statement best compares the solubility of these substances?
KCl is more soluble at 20°C than NaCl is.
Both substances are equally soluble at 30°C.
KCl will become less soluble at temperatures greater than 40°C.
Both substances have the same solubility from 20°C through 40°C.
Joanna and Mason hang a small box from a string and place two identical
electric fans near the box. When they turn on both fans to the same
setting, Joanna and Mason observe that the box begins to swing toward
the right, as shown in the illustration.
Joanna claims that she can balance the forces on the box without turning
off the fans. Which of the following would most likely produce the
change in motion necessary to support Joanna’s claim?
Change the angle of Fan 2 so that it is blowing air onto the bottom
of the box.
Move Fan 2 so that both fans are blowing air onto the left side of
the box.
Change the setting of Fan 2 so that it is blowing less air than Fan 1 is.
Move Fan 2 so that it is the same distance from the box as Fan 1 is.
Cassandra flashes a beam of white light toward a prism. The prism
separates the white light into different colors. Which of the following
causes the separation of the white light?
The white light is concentrated.
The white light is absorbed.
The white light is refracted.
The white light is reflected.
Ms. Brooks demonstrated phase changes to her class. She lit a candle
and let the melting wax drop into a beaker of cold water, as shown
below. The temperature of the water was four degrees Celsius (4°C).
Which statement best explains what happened to the wax as it came in
contact with the cold water in the beaker?
The wax changed from a liquid to a solid as it gave off heat to its
surroundings.
The wax changed from a liquid to a solid as it increased in
temperature.
The wax remained in the liquid phase as it decreased in temperature.
The wax remained in the liquid phase as it absorbed heat.
A chemist observes a reaction between two substances in a closed
container. Which of the following would most likely happen if the
temperature is increased inside the container?
The rate of the reaction would increase.
The mass of each of the atoms would increase.
The two substances would release nuclear energy.
The two substances would not change into different compounds.
Two Olympic cyclists rode their bicycles on an oval track. The graph
below represents the number of 500-meter laps they completed.
Based on the graph, which statement best describes the motion of the
cyclists as they rode their bicycles?
Both cyclists made stops about halfway through their rides.
Both cyclists rode their bicycles at about the same speed.
Cyclist 1 rode about twice as fast as Cyclist 2.
Cyclist 2 made more stops than Cyclist 1.
Dionne observes her science teacher testing a sample of an unknown substance. She recorded her observations in the table shown.
Which test would provide evidence of a chemical change?
1
2
3
4
Scientific theories are developed over time in all areas of science.
Which statement best describes scientific theories?
They are based on scientific laws that came first.
They are pieces of scientific evidence that support a hypothesis.
They are explanations of scientific events that may change based on
continuous research.
They are predictions of events that usually remain constant because
scientific ideas rarely change.
The table below shows the range of frequencies, in Hertz (Hz), for part of the electromagnetic spectrum.
Which of the following types of radiation has the longest wavelength?
Infrared
Ultraviolet
X-rays
Gamma rays
