Expert answer:Physical Science Multiple Questions
Solved by verified expert:18 question assignment. Question 1 must be an essay answer . The rest of the questions will need to be answered in 3-5 sentences, besides the 3 multiple choice questions. Any questions, please let me know.
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Question 1
Write an essay (5 paragraphs, 3 to 5 sentences, APA formatting) that explains the importance of
motion to the study of physics. First, describe and define the properties of a moving particle,
including position, velocity, and acceleration. Describe how these properties can be measured.
Then provide detailed examples of how specific motion affects the world around you. Describe
what is moving, and provide detail about the velocity and acceleration of the object. Where
applicable, mention any force involved in the motion. Make sure to discuss at least one example
of the motion of a macroscopic object, and two examples of the motion of a microscopic object
(molecule, atom, particle).
Question 2
There is a gravitational attraction between an apple and Earth. Which of Newton’s laws is
responsible for the force on Earth and the force on the apple being having the same strength?
Which of Newton’s laws is responsible for the fact that the apple falls to Earth, rather than Earth
falling to the apple?
Question 3
What is acceleration, and what are its properties? What is the relationship of acceleration to a
change in velocity and the time it takes for the velocity to change?
Question 4
What is centripetal acceleration? What is centripetal force? What purpose does centripetal force
serve, and how can it be provided?
Question 5
How many protons and electrons are needed to make an atom neutral? What about the number of
neutrons? How many protons and electrons are needed to make an ion of charge +1?
Question 6
Name the lightest element. What parts is it composed of, and in what numbers? What property of
the proton explains why this element is the only stable element with no neutrons? Use an
everyday analogy if it helps you to explain this.
Question 7
A boat propeller is damaged by pitting that is not caused by corrosion (rust). What has occurred,
and what does it have to do with sound?
Question 8
You and two friends set up an experiment. A loud noise will be made 300 feet away. You listen
through the air. One friend listens through a 300 foot tube filled with water, and the other friend
listens through a 300 foot steel pole. Though the difference may be almost imperceptible, who
will hear the sound first? Why?
Question 9
When two sound waves of the same frequency are played together, the peaks of the waves add
and the troughs subtract. A peak and trough in the same place cancel out. This is an example of
which phenomenon?
Select one:
a. Refraction
b. Diffraction
c. Reflection
d. Interference
Question 10
The particle model of light is sufficient for describing many phenomena. What is one
phenomenon it is sufficient to describe? Provide an explanation of this phenomenon using the
particle model.
Question 11
List the types of radiation in the electromagnetic spectrum, from lowest energy to highest energy.
Provide 3 examples of uses of wavelengths outside the visual range. Ensure that either infrared
or ultraviolet waves, or both, are included in your examples.
Question 12
To which wavelengths of light is the human eye most sensitive?
Select one:
a. Red
b. Green
c. Blue
d. Violet
Question 13
Describe what static electric charge is. How can it be formed? Provide some examples. What
effects does it have on the environment?
Question 14
Historically, some of the first power plants distributed direct current to customers. But today, all
household electricity comes in alternating current form? Why is alternating current used for wall
socket current, rather than direct current?
Question 15
In a circuit with a battery and a switch that has several light bulbs wired in series, which will be
the effect of adding another light bulb to the circuit?
Select one:
a. Nothing will change
b. The new bulb may not light up
c. The lights will all shine less brightly than before
d. The lights will all shine more brightly than before
Question 16
You notice that a compass points along the lines of a local magnetic field. Describe how you
could use this knowledge to create an electric motor.
Question 17
You may have noticed at some point that if you break a magnet in half, it can become two
magnets. Each has a north pole and a south pole. Neither piece becomes only a north or only a
south pole. Why is this?
Question 18
You have an unknown bar magnet and you want to label the poles N and S. Which is NOT a way
you could determine the poles?
Select one:
a. Find the pole attracted to the south pole of another magnet. Label it south.
b. Float the magnet in a light paper cup in a basin of water. Label the north-pointing pole
north.
c. Place a compass near the magnet. Locate the pole the compass points toward, and label it
south.
d. Find the pole that is repelled from the north pole of another magnet. Label it south.
Question 1
Write an essay (5 paragraphs, 3 to 5 sentences, APA formatting) that explains the importance of
motion to the study of physics. First, describe and define the properties of a moving particle,
including position, velocity, and acceleration. Describe how these properties can be measured.
Then provide detailed examples of how specific motion affects the world around you. Describe
what is moving, and provide detail about the velocity and acceleration of the object. Where
applicable, mention any force involved in the motion. Make sure to discuss at least one example
of the motion of a macroscopic object, and two examples of the motion of a microscopic object
(molecule, atom, particle).
Question 2
There is a gravitational attraction between an apple and Earth. Which of Newton’s laws is
responsible for the force on Earth and the force on the apple being having the same strength?
Which of Newton’s laws is responsible for the fact that the apple falls to Earth, rather than Earth
falling to the apple?
Question 3
What is acceleration, and what are its properties? What is the relationship of acceleration to a
change in velocity and the time it takes for the velocity to change?
Question 4
What is centripetal acceleration? What is centripetal force? What purpose does centripetal force
serve, and how can it be provided?
Question 5
How many protons and electrons are needed to make an atom neutral? What about the number of
neutrons? How many protons and electrons are needed to make an ion of charge +1?
Question 6
Name the lightest element. What parts is it composed of, and in what numbers? What property of
the proton explains why this element is the only stable element with no neutrons? Use an
everyday analogy if it helps you to explain this.
Question 7
A boat propeller is damaged by pitting that is not caused by corrosion (rust). What has occurred,
and what does it have to do with sound?
Question 8
You and two friends set up an experiment. A loud noise will be made 300 feet away. You listen
through the air. One friend listens through a 300 foot tube filled with water, and the other friend
listens through a 300 foot steel pole. Though the difference may be almost imperceptible, who
will hear the sound first? Why?
Question 9
When two sound waves of the same frequency are played together, the peaks of the waves add
and the troughs subtract. A peak and trough in the same place cancel out. This is an example of
which phenomenon?
Select one:
a. Refraction
b. Diffraction
c. Reflection
d. Interference
Question 10
The particle model of light is sufficient for describing many phenomena. What is one
phenomenon it is sufficient to describe? Provide an explanation of this phenomenon using the
particle model.
Question 11
List the types of radiation in the electromagnetic spectrum, from lowest energy to highest energy.
Provide 3 examples of uses of wavelengths outside the visual range. Ensure that either infrared
or ultraviolet waves, or both, are included in your examples.
Question 12
To which wavelengths of light is the human eye most sensitive?
Select one:
a. Red
b. Green
c. Blue
d. Violet
Question 13
Describe what static electric charge is. How can it be formed? Provide some examples. What
effects does it have on the environment?
Question 14
Historically, some of the first power plants distributed direct current to customers. But today, all
household electricity comes in alternating current form? Why is alternating current used for wall
socket current, rather than direct current?
Question 15
In a circuit with a battery and a switch that has several light bulbs wired in series, which will be
the effect of adding another light bulb to the circuit?
Select one:
a. Nothing will change
b. The new bulb may not light up
c. The lights will all shine less brightly than before
d. The lights will all shine more brightly than before
Question 16
You notice that a compass points along the lines of a local magnetic field. Describe how you
could use this knowledge to create an electric motor.
Question 17
You may have noticed at some point that if you break a magnet in half, it can become two
magnets. Each has a north pole and a south pole. Neither piece becomes only a north or only a
south pole. Why is this?
Question 18
You have an unknown bar magnet and you want to label the poles N and S. Which is NOT a way
you could determine the poles?
Select one:
a. Find the pole attracted to the south pole of another magnet. Label it south.
b. Float the magnet in a light paper cup in a basin of water. Label the north-pointing pole
north.
c. Place a compass near the magnet. Locate the pole the compass points toward, and label it
south.
d. Find the pole that is repelled from the north pole of another magnet. Label it south.
…
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