Listen

Question

When using a machine, which of the following statements BEST describes the force-distance trade-off?

Question 20 options:

Increasing the distance over which a force is applied has no impact on the force required.

Increasing the force applied to the machine also increases the distance over which the force is applied.

Increasing the distance over which a force is applied results in a decrease in the amount of force required.

Increasing the force applied to the machine decreases the distance over which the force is applied.

Question 21 (1 point)

Listen
A homeowner wants to use a ramp to move boxes into a truck bed that is X meters high. He has a choice of two (2) different ramps. The length of one ramp is 4 meters, and the length of the other ramp is 6 meters. Which of the following will make the work easier?

Question 21 options:

4 meters; because more force is applied over a greater distance

6 meters; because more force is applied over a greater distance

6 meters; because less force is applied over a greater distance

4 meters; because less force is applied over a greater distance

Question 22 (1 point)

Listen
Use the information and table to answer the following question.

Students conducted an experiment where they measured the wavelength, frequency, and energy of two electromagnetic waves. They recorded the following data:

wavelength

frequency

energy

Wave A

400 nanometers

7.5 x 10^14 Hz

3.98 x 10^-19 Joules

Wave B

600 nanometers

5.0 x 10^14 Hz

2.65 x 10^-19 Joules

Based on this data, which relationship can be observed among wavelength, frequency, and energy in electromagnetic waves?

Question 22 options:

There is no consistent relationship between wavelength, frequency, and energy in electromagnetic waves.

As wavelength increases, frequency increases, and energy decreases.

As wavelength decreases, frequency increases, and energy increases.

As wavelength increases, frequency decreases, and energy increases.

Question 23 (1 point)
Saved

Listen
Use the information and table to answer the following question.

The table shows the wavelength of different colors on the visible light spectrum.

Color

Wavelength (nm)

Violet

380-450

Blue

450-495

Green

495-570

Yellow

570-590

Orange

590-620

Red

620-750

For this question, choose THREE answers. Based on the data in the table, which statements about the colors on the visible light spectrum are TRUE?

Question 23 options:

Violet light has the longest wavelength and the lowest frequency.

Red light has the longest wavelength and the lowest frequency.

Yellow light has a higher frequency than blue light.

Green light has a higher frequency than orange light.

Red light has the shortest wavelength and the lowest frequency.

Violet light has the shortest wavelength and the highest frequency.

Question 24 (1 point)

Listen
Use the information to answer the following question.

Mechanical waves consist of oscillations of particles, while electromagnetic waves consist of changing electric and magnetic fields.
Mechanical waves require a medium while electromagnetic waves can travel in a vacuum.
Mechanical waves will travel at different speeds due to the medium density and all electromagnetic waves will travel at the same speed through a vacuum.
Identify the BEST question students would use to guide their inquiry.

Question 24 options:

What are key similarities between electromagnetic waves and mechanical waves?

Why do mechanical waves travel with different speeds?

How do mechanical waves travel compared to electromagnetic waves?

What are key differences between electromagnetic waves and mechanical waves?

Question 25 (1 point)

Listen
Use the model to answer the following question.

What type of wave interaction is shown in the model?

Question 25 options:

refraction

reflection

interference

diffraction

Question 26 (1 point)
Saved

Listen
Use the picture to answer the following question.

What type of wave interaction is shown in the picture?

Question 26 options:

diffraction

reflection

interference

refraction

Question 27 (1 point)

Listen
Use the information and table to answer the following question.

Students conducted an experiment to determine how the speed of sound varies in different media. They measured the speed of sound in air, water, and steel and recorded the following data:

Type of Media

Speed of Sound

Air

343 meters per second

Water

1,480 meters per second

Steel

5,960 meters per second

Based on the data, what can you conclude about the relationship between the media and the speed of sound?

Question 27 options:

The speed of sound is faster in media that are denser and have particles closely packed together, such as steel.

The speed of sound is slower in media that are less dense and particles are closely packed together, such as air.

The speed of sound is faster in media that are less dense and have particles farthest part, such as steel.

The speed of sound is slower in media that are denser and particles are spread out, like water.

Question 28 (1 point)

Listen
Use the information and table to answer the following question.

A student is using a sound machine to produce sound waves, they recorded their observations presented in the data table.

Wavelength (m)

Frequency (Hz)

Amplitude (dB)

Sound Wave 1

1.5

230

25

Sound Wave 2

2.5

140

50

How could the student manipulate the sounds to make them match pitch but make Sound Wave 1 louder than Sound Wave 2?

Question 28 options:

The waves could have the same amplitude but make Sound Wave 1 have a higher frequency.

The waves could have the same wavelength but make Sound Wave 1 have a higher frequency.

The waves could have the same frequency but make Sound Wave 2 have a higher wavelength.

The waves could have the same frequency but make Sound Wave 1 have a higher amplitude.

Question 29 (1 point)

Listen
What causes the change in frequency (pitch) of sound waves experienced by an observer due to the Doppler Effect?

Question 29 options:

changes in the amplitude of sound waves

changes in the wavelength of sound waves

relative motion between the source and the observer

changes in the speed of sound in the medium

Question 30 (1 point)

Listen
Use the image to answer the following question.

A circuit has a resistor with a resistance of 300 ohms and a current of 0.5 amperes flowing through it. What is the voltage across this resistor?

Question 30 options:

300 volts

150 volts

0.6 volts

60 volts

Question 31 (1 point)

Listen
Use the image to answer the following question.

How much current is flowing through the resistor?

Question 31 options:

20 amperes

0.05 amperes

0.10 amperes

10 amperes

Question 32 (1 point)

Listen
Use the information and model to answer the following question.

Students in a science class were shown three identical bulbs, each with a resistance of 50 ohms, connected to a 1.5-volt battery as shown in the diagram below. The students were told to assume the resistance of the wire is 0 ohms and make a claim as to which bulb has the most current.

Which statement is the BEST justified claim?

Question 32 options:

The current in each bulb is the same because they are all connected to the same power source.

The current in Bulbs B and C is greater than the current in Bulb A because both bulbs are closer to the power source.

The current in Bulb B is less than the current in Bulb C because Bulbs B and C share the same current.

The current in Bulb A is greater than the current in Bulb B and greater than the current in bulb C because Bulb A doesn't have to share current with bulbs B and C.

Question 33 (1 point)

Listen
Use the model to answer the following question.

In a parallel circuit with three light bulbs, if one of the bulbs burns out and stops working, what happens to the other two bulbs that are still functional?

Question 33 options:

The other two bulbs will remain lit at the same brightness.

The other two bulbs will also burn out.

The other two bulbs will become brighter.

The other two bulbs will become dimmer.

Question 34 (1 point)

Listen
Use the information to answer the following question.

Students were asked to create different types of circuits in a lab. One student built a simple circuit with 2 resistors (R1 and R2) and a switch. When they opened the switch the current flowed through R1 but not through R2.

Which circuit did the student build?

Question 34 options:

Question 35 (1 point)

Listen
In an experiment with an electromagnet and a piece of wire, a student observes that when the wire is moved through the magnetic field of the electromagnet, a current is induced in the wire. What is the relationship between the movement of the wire and the induction of electrical current in this experiment?

Question 35 options:

There is no relationship between the movement of the wire and the induction of electrical current.

Electrical current is induced when the wire is moved through the magnetic field.

Electrical current is induced only when the wire is stationary within the magnetic field.

Electrical current is induced when the wire is neither stationary nor moving.

Question 36 (1 point)

Listen
Use the scenario and chart to answer the following question.

A student is designing an electromagnet to determine what variable produces the greatest electromagnetic force. The student makes four electromagnets and puts the findings in the following chart.

Number of Coils Around an Iron Nail

Voltage (V)

Number of Paper Clips Picked Up

10

1.5

8

20

1.5

15

30

1.5

26

40

1.5

33

What conclusion can the student draw from the data collected?

Question 36 options:

The number of coils of wire affects the strength of the magnetic force.

The number of coils of wire doesn't affect the amount of current induced.

The number of paper clips picked up affects the size of the battery.

The size of the battery will always result in a greater magnetic force.

Answer 1

Here are the answers for the questions you provided:

Question 20: The BEST description of the force-distance trade-off is:

• Increasing the distance over which a force is applied results in a decrease in the amount of force required.

Question 21: To make the work easier, the option is:

• 6 meters; because less force is applied over a greater distance.

Question 22: The observed relationship among wavelength, frequency, and energy in electromagnetic waves is:

• As wavelength decreases, frequency increases, and energy increases.

Question 23: Based on the visible light spectrum data, the TRUE statements are:

• Red light has the longest wavelength and the lowest frequency.
• Green light has a higher frequency than orange light.
• Violet light has the shortest wavelength and the highest frequency.

Question 24: The BEST question for guiding inquiry is:

• What are key differences between electromagnetic waves and mechanical waves?

Question 25: The type of wave interaction shown in the model is likely:

• refraction. (Assuming the model illustrates light bending as it passes from one medium to another.)

Question 26: The type of wave interaction shown in the picture is likely:

• reflection. (Assuming the image depicts light bouncing off a surface.)

Question 27: The conclusion about the relationship between the media and the speed of sound is:

• The speed of sound is faster in media that are denser and have particles closely packed together, such as steel.

Question 28: To make Sound Wave 1 louder than Sound Wave 2 while matching pitch:

• The waves could have the same frequency but make Sound Wave 1 have a higher amplitude.

Question 29: The cause of the change in frequency (pitch) of sound waves due to the Doppler Effect is:

• relative motion between the source and the observer.

Question 30: The voltage across the resistor can be calculated using Ohm's law (V = IR), resulting in:

• 150 volts. (V = 0.5 A * 300 Ω).

Question 31: The current flowing through the resistor is:

• 0.05 amperes. (This is based on the given context; actual calculations would depend on the resistance and voltage provided.)

Question 32: The BEST justified claim about the current in the bulbs is:

• The current in each bulb is the same because they are all connected to the same power source.

Question 33: If one bulb in a parallel circuit burns out, the outcome for the other two bulbs is:

• The other two bulbs will remain lit at the same brightness.

Question 34: The student built a circuit where:

• The values would need more information for a specific conclusion, but typically if current flows through one resistor when a switch is open and not through another, it indicates that the resistors are arranged in series and the opened switch disrupts the path for only one of them.

Question 35: The relationship between the movement of the wire and induction of electrical current is:

• Electrical current is induced when the wire is moved through the magnetic field.

Question 36: The conclusion the student can draw from the data is:

• The number of coils of wire affects the strength of the magnetic force.

Feel free to ask if you need further assistance!