Quiz about WAVES & INFO. TECHNOLOGIES

Question 1

A complete, unbroken path through which electric charges can flow.

Accepted Answer

electric circuit

Answer

voltages

Answer

resistance

Answer

Ohm's law

Question 2

The difference in electrical potential energy per charge between two places in a circuit.

Accepted Answer

voltage

Answer

resistance

Answer

wave pulse

Answer

series circuit

Question 3

The measurement of how difficult it is for charges to flow through an object.

Accepted Answer

resistance

Answer

longitudinal wave

Answer

voltage

Answer

parallel circuit

Question 4

The law that states the resistance in a circuit is equal to voltage divided by current.

Accepted Answer

Ohm's law

Answer

wave pulse

Answer

software

Answer

electrical circuit

Question 5

An electric circuit in which all parts are connected one after another along one path.

Accepted Answer

series circuit

Answer

parallel circuit

Answer

longitudinal wave

Answer

Ohm's law

Question 6

An electric circuit in which different parts of the circuit are on separate branches.

Accepted Answer

parallel circuit

Answer

series circuit

Answer

transverse wave

Answer

analog signal

Question 7

A disturbance that transfers energy from place to place.

Accepted Answer

wave

Answer

analog signal

Answer

digital signal

Answer

electrical circuit

Question 8

A wave that requires a medium through which to travel.

Accepted Answer

mechanical wave

Answer

electromagnetic wave

Answer

digital signal

Answer

analog signal

Question 9

A wave that moves the medium at right angles to the direction in which the wave travels.

Accepted Answer

transverse wave

Answer

longitudinal wave

Answer

series circuit

Answer

parallel circuit

Question 10

A wave that moves the medium in a direction parallel to the direction in which the wave travels.

Accepted Answer

longitudinal wave

Answer

electromagnetic wave

Answer

amplitude

Answer

transverse wave

Question 11

The height of a transverse wave from the center to a crest or trough.

Accepted Answer

amplitude

Answer

frequency

Answer

wavelength

Answer

wave pulse

Question 12

The distance between two corresponding parts of a wave, such as the distance between two crests.

Accepted Answer

wavelength

Answer

frequency

Answer

amplitude

Answer

wave pulse

Question 13

The number of complete waves that pass a given point in a certain amount of time.

Accepted Answer

frequency

Answer

wavelength

Answer

amplitude

Answer

longitudinal wave

Question 14

A pulse of energy that travels through an electric circuit when it is closed.

Accepted Answer

wave pulse

Answer

analog signal

Answer

digital signal

Answer

pixel

Question 15

Information that sent as a pattern in a controlled flow of current through a circuit.

Accepted Answer

electronic signal

Answer

digital signal

Answer

analog signal

Answer

wave pulse

Question 16

Information that sent as a pattern of electromagnetic waves, such as visible light, microwaves, and radio waves.

Accepted Answer

electromagnetic signal

Answer

longitudinal wave

Answer

analog signal

Answer

series circuit

Question 17

A signal that allows for a record of numerical values of an action at a set of continuous time intervals.

Accepted Answer

digital signal

Answer

analog signal

Answer

voltage

Answer

amplitude

Question 18

A signal that allows for a continuous record of some kind of action.

Accepted Answer

analog signal

Answer

wave pulse

Answer

mechanical wave

Answer

digital signal

Question 19

A small, uniform shape that is combined with other pixels to make a larger image.

Accepted Answer

pixel

Answer

wave pulse

Answer

mechanical wave

Answer

series circuit

Question 20

What differences are there between the digital and analog recordings? Choose the TWO that apply.

Accepted Answer

Analog signals are higher resolution.

Accepted Answer

Digital signals can be better stored electronically.

Answer

Digital signals are continuous.

Answer

Analog signals consist of numerical values recorded at a specific

time interval.

Answer

Digital signals take up more space.

Question 21

Noah wanted to convert the analog recording into a digital signal so that he could put it on his mp3 player. What could Noah do to get the highest quality digital signal from the analog recording?

Accepted Answer

higher sampling rate of analog signal

Answer

lower amplitude of analog signal

Answer

higher amplitude of analog signal

Answer

lower sampling rate of analog signal

Question 22

Sarah enjoys walking to the beach and photographing the sunset. When she downloads the images to her computer, she saves two different versions. She keeps one version with the full amount of pixels, so that she can use the images for any project in the future. In the second version, she reduces the number of pixels by half. What would be a benefit of reducing the number of pixels?

Accepted Answer

less storage space

Answer

better quality

Answer

better for creating large posters

Answer

less boxy-looking

Question 23

Joseph measured the voltage in his circuit and found it to be 120 volts. He knew that the resistor she had placed in her circuit had a resistance of 1,500 ohms. What was the current in his circuit in amps?

Accepted Answer

0.08 amps

Answer

120 amps

Answer

12.5 amps

Answer

180,000 amps

Question 24

Joseph measured the voltage in his circuit and found it to be 120 volts. He knew that the resistor she had placed in her circuit had a resistance of 1,500 ohms. If he increased the voltage in the circuit and kept the resistance the same, what would happen to the amount of current?

Accepted Answer

increase

Answer

decrease

Answer

double

Answer

stay the same

Question 25

The diagram shown is an unlabeled transverse wave. Which of the following statements is TRUE?

Accepted Answer

Decreasing C will increase the energy.

Answer

C represents the amplitude of the wave.

Answer

Increasing D will decrease the energy.

Answer

Increasing C will increase the energy.

Question 26

The diagram shown is an unlabeled transverse wave. Which of the following statements is TRUE?

Accepted Answer

D is the amplitude of the wave.

Answer

A is the trough of the wave.

Answer

B is the compression of the wave.

Answer

C is the frequency of the wave.

Question 27

Which of the following is TRUE about the different types of wave?

Accepted Answer

Mechanical waves can be either longitudinal or transverse.

Answer

Sound waves are both electromagnetic and longitudinal.

Answer

Electromagnetic waves require a medium and cannot travel through space.

Answer

Longitudinal waves vibrate matter at right angles.

Question 28

The image shows transverse waves moving through a point over 1 second. What is the frequency of the transverse wave shown?

Accepted Answer

3.0 Hz

Answer

6.0 Hz

Answer

7.0 Hz

Answer

9.0 Hz

Question 29

Which of the following would increase the energy of the wave shown?

Accepted Answer

increase the amplitude

Answer

increase the wavelength

Answer

decrease the frequency

Answer

decrease the speed

Question 30

A student is using a metal coil to model the properties of different types of waves. Based on the image below, which of the following is most likely FALSE?

Accepted Answer

The student is investigating how to determine the frequency of a transverse wave.

Answer

The student is modeling longitudinal waves.

Answer

The metal spring vibrates parallel to the direction of energy movement.

Answer

The student is modeling how sound waves travel.

Question 31

Which of the following describes an advantage of parallel circuits?

Accepted Answer

If one device goes out, the others are unaffected.

Answer

Each device shares the voltage.

Answer

Adding devices reduces the current.

Answer

More voltage is needed to reach an appropriate current.

Question 32

Which of the following is TRUE about the circuit shown?

Accepted Answer

Adding another battery would increase the brightness of each light bulb.

Answer

The circuit is an open circuit.

Answer

If one light bulb goes out, the others will be unaffected.

Answer

The circuit is a parallel circuit.

Question 33

A musician records and mixes his own music. His process includes playing each instrument individually while recording the music on his computer. He then uses special software to combine the individual recordings. Lastly, he records his voice as he sings the accompanying lyrics, adding this to the instrumental background. He uploads the final product to a cloud that he shares with his family and friends. What is happening to the signals during this process?

Accepted Answer

Analog signals are being converted to digital signals so that they can be combined, altered, and shared.

Answer

The signals remain analog throughout the entire process. Both the music and computer work can be done with analog.

Answer

The signals remain digital throughout the entire process. Both the music and computer work can be done with digital.

Answer

Digital signals are being converted to analog signals so that they can be combined, altered, and shared.

Question 34

A sound engineer was working on cleaning up the noise from an analog signal
and from a digital signal. Which signal would she have a harder time erasing the noise from?

Accepted Answer

analog, because it is a continuous signal with infinite values, and the noise is blended in

Answer

digital, because it is a continuous signal with infinite values, and noise is blended in

Answer

analog, because it is a discrete signal made up of ones and zeroes, and noise is blended in

Answer

digital, because it is a discrete signal made up of ones and zeroes, and noise is blended in

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