AnswersKISD SS-3391B-Algebra II Honors B Exam OnlyCumulative Exam

Cumulative Exam — Cumulative exam Answers

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Which statements correctly describe the effect of distance in determining the gravitational force and the electrical force? Check all that apply.The gravitational force has an infinite reach.The electrical force has an infinite reach.The gravitational force is inversely proportional to the distance.The electrical force is inversely proportional to the distance.The gravitational force is inversely proportional to the square of the distance.The electrical force is inversely proportional to the square of the distance.

A
The gravitational force has an infinite reach.
B
The electrical force has an infinite reach.
C
The gravitational force is inversely proportional to the distance.
D
The electrical force is inversely proportional to the distance.
E
The gravitational force is inversely proportional to the square of the distance.
F
The electrical force is inversely proportional to the square of the distance.
22
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Which fields would most likely make use of spectroscopy techniques? Select 4 options. food productionmedical researchscientific researchspace researchweather forecasting

A
food production
B
medical research
C
scientific research
D
space research
E
weather forecasting
23

What is the resistance in a circuit that carries a 0.75 A current when powered by a 1.5 V battery?

A
0.50 Ω
B
1.1 Ω
C
2.0 Ω
D
2.3 Ω
24

The image shows the right-hand rule being used for a current-carrying wire.

Question illustration
A
When the current flows down the wire, the magnetic field flows out on the left side of the wire and in on the right side of the wire.
B
When the current flows up the wire, the magnetic field flows out on the left side of the wire and in on the right side of the wire.
C
When the current flows down the wire, the magnetic field flows in on the left side of the wire and out on the right side of the wire.
D
When the current flows up the wire, the magnetic field flows in on the left side of the wire and out on the right side of the wire.
25

A car makes sound as it moves toward a stationary observer. What best describes the sound wave heard by the observer compared with the sound heard by the car’s driver?

A
higher frequency; shorter wavelength
B
higher frequency; longer wavelength
C
lower frequency; shorter wavelength
D
lower frequency; longer wavelength
26

The ratio of coils of wire in the primary winding to the secondary winding of a transformer is 3:2. How does the transformer change the voltage of a current applied to the primary winding?

A
It increases to three-halves times the original.
B
It decreases to two-thirds the original.
C
It increases to three times the original.
D
It decreases to one-third the original.
27

A wire is joined to points X and Y in the circuit diagram shown.How does the circuit change when the wire is added?

Question illustration
A
A closed circuit occurs and makes all bulbs turn off.
B
An open circuit occurs and makes all bulbs turn off.
C
A short circuit occurs and makes bulbs 3 and 4 turn off but keeps bulbs 1 and 2 lit.
D
A short circuit occurs and makes bulbs 1 and 2 turn off but keeps bulbs 3 and 4 lit.
28

The diagram shows the electric field around two charged objects.

Question illustration
A
Y is negative, and Z is positive.
B
Y is negative, and Z is negative.
C
Y and Z are like charges, but their identities cannot be determined.
D
Y and Z are opposite charges, but their identities cannot be determined.
29

A circuit is built based on this circuit diagram.

Question illustration
A
0.61 Ω
B
1.6 Ω
C
7.5 Ω
D
18 Ω
30

The diagram shows the electric field lines around two charges.

Question illustration
A
They are negative, and they repel.
B
The left is negative and the right is positive, so they attract.
C
The left is positive and the right is negative, so they attract.
D
They are positive, and they repel.
31

Which describes Einstein’s second postulate about the special theory of relativity?

A
The speed of light in a vacuum is constant, and nothing is faster than the speed of light.
B
The speed of light in a vacuum is constant, and some things are faster than the speed of light.
C
The speed of light in a vacuum fluctuates, but nothing is faster than the speed of light.
D
The speed of light in a vacuum fluctuates, and some things are faster than the speed of light.
32

Which shows the correct order of events after the big bang occurred?

A
strong force separated from the unified force, inflationary expansion occurred, quarks and electrons formed, electromagnetic and weak forces separated from the unified force, gravity separated from the unified force
B
electromagnetic and weak forces separated from the unified force, gravity separated from the unified force, strong force separated from the unified force, inflationary expansion occurred, quarks and electrons formed
C
gravity separated from the unified force, strong force separated from the unified force, inflationary expansion occurred, electromagnetic and weak forces separated from the unified force, quarks and electrons formed
D
quarks and electrons formed, electromagnetic and weak forces separated from the unified force, inflationary expansion occurred, strong force separated from the unified force, gravity separated from the unified force
33

Two identical waves are traveling toward each other in the same medium. One has a positive amplitude, meaning that its peaks only go upward, and the other wave has a negative amplitude, with peaks going downward.

A
constructive interference
B
destructive interference
C
a reflecting wave
D
wave refraction
34

Which lists the correct steps that occur when using a diffraction grating to bend light?

A
diffracted wavelengths reach the eyes → different wavelengths of light bend at different angles → the eyes see different colors → light strikes the grooves
B
different wavelengths of light bend at different angles → light strikes the grooves → diffracted wavelengths reach the eyes → the eyes see different colors
C
diffracted wavelengths reach the eyes → the eyes see different colors → light strikes the grooves → different wavelengths of light bend at different angles
D
light strikes the grooves → different wavelengths of light bend at different angles → diffracted wavelengths reach the eyes → the eyes see different colors
35

The diagram shows light passing through an opening and forming bands.

Question illustration
A
n = 0 and n = 1
B
n = 0 and n = 3
C
n = 1 and n = 2
D
n = 2 and n = 3
36

The speed of light in a vacuum is approximately 2.99 × 108 m/s, and the speed of light through a piece of glass is approximately 1.97 × 108 m/s.

A
0.66
B
1.52
C
1.02 × 108
D
4.96 × 108
37

Tony uses the device shown in the diagram to model how an electromagnet is used in his uncle’s scrap metal yard.

Question illustration
A
removing the battery
B
removing the iron nail
C
moving the wire loops closer together
D
spreading the wire loops farther apart
38

At night, the demand for electricity supplied by a fission nuclear reactor decreases. How is the fission nuclear reaction controlled to avoid overproduction of electricity?

A
The temperature of the reactor is lowered because high temperature and pressure are needed.
B
The temperature of the reactor is raised because the reaction slows down at higher temperatures.
C
The exposure between the fuel rods and a neutron-absorbing material is increased.
D
The exposure between the fuel rods and a neutron-absorbing material is reduced.
39

A positive rod is touched to a neutral sphere.

Question illustration
A
It is showing the direction that protons move in, making the sphere negative.
B
It is showing the direction that protons move in, making the sphere positive.
C
It is showing the direction that electrons move in, making the sphere positive.
D
It is showing the direction that electrons move in, making the sphere negative.
40

Which electromagnetic wave transfers the least amount of energy?

A
gamma
B
X-ray
C
ultraviolet
D
microwave

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