Quiz about Unit 3: Waves and Information Technology - Review

Question 1

A path for electric current to follow is also known ________________.

Accepted Answer

A path for electric current to flow

Answer

A type of battery

Answer

A method of storing energy

Answer

A device for generating electricity

Question 2

The measure of how hard it is for current to flow through an object

Accepted Answer

Resistance

Answer

Voltage

Answer

Current

Answer

Power

Question 3

A message transmitted electronically

Accepted Answer

Signal

Answer

Current

Answer

Resistance

Answer

Wavelength

Question 4

Allow for a record of numerical values of an action at a set of continuous time intervals

Accepted Answer

Digital Signals

Answer

Analog Signals

Answer

Optical Fibers

Answer

Pixels

Question 5

Which of the following is an example of a technology used in communication?

Accepted Answer

Social Media

Answer

Television

Answer

Microwave

Answer

Car

Question 6

Which of the following components are found in an electric circuit?

Accepted Answer

Switch

Accepted Answer

Battery

Accepted Answer

Light bilb

Accepted Answer

Resistor

Question 7

Can Sound be transmitted though waves?

Accepted Answer

Yes

Answer

No

Question 8

What unit of measurement is used to measure electric current?

Accepted Answer

Ampere

Answer

Volt

Answer

Ohm

Answer

Watt

Question 9

Which of the following is a wireless technology used for internet connectivity?

Accepted Answer

Wi-Fi

Answer

Fiber Optic

Answer

Ethernet

Answer

Bluetooth

Question 10

Coding system that Digital Signals rely on

Accepted Answer

Binary coding

Answer

Hexadecimal coding

Answer

Octal coding

Answer

ASCII coding

Question 11

The amount of information that can be transmitted as digital signals over some amount of time

Accepted Answer

Bandwidth

Answer

Signal strength

Answer

Latency

Answer

Throughput

Question 12

Which of the following words describes Analog Signals?

Accepted Answer

Continuous

Answer

Discrete

Answer

Fixed

Answer

Limited

Question 13

Which of the following words describes Digital Signals?

Accepted Answer

Discrete

Answer

Analog

Answer

Continuous

Answer

Variable

Question 14

What is a wavelength?

Accepted Answer

The distance between successive crests/troughs of a wave.

Answer

The height of a wave from the trough to the crest.

Answer

The speed at which a wave travels through a medium.

Answer

The frequency of a wave measured in hertz.

Question 15

What is amplitude?

Accepted Answer

Amplitude is the maximum displacement from the rest position in a wave to the crest/trough.

Answer

Amplitude is the length of a wave.

Answer

Amplitude is the speed of sound in a medium.

Answer

Amplitude is the frequency of a wave.

Question 16

What is Frequency?

Accepted Answer

Frequency is the rate at which a repeating wave occurs.

Answer

Frequency is the measure of temperature changes.

Answer

Frequency refers to the loudness of a sound.

Answer

Frequency is the distance between two points.

Question 17

What is the Crest of a Wave?

Accepted Answer

The highest point of the wave.

Answer

The lowest point of the wave.

Answer

The point where waves break.

Answer

The distance between two waves.

Question 18

What is the Trough of a Wave?

Accepted Answer

The lowest point of the wave.

Answer

The highest point of the wave.

Answer

The distance between two consecutive waves.

Answer

The speed at which the wave travels.

Question 19

Which side of a typical battery has more potential energy?

Accepted Answer

The positive side has more potential energy.

Answer

The negative side has more potential energy.

Answer

Both sides have equal potential energy.

Answer

The battery has no potential energy.

Question 20

The parts of a Longitudinal Wave where the coils are close together are called...

Accepted Answer

compressions

Answer

rarefactions

Answer

nodes

Answer

antinodes

Question 21

Signal Noise affects Analog Signals more than Digital Signals

Accepted Answer

True

Answer

False

Question 22

Which of the following is NOT on the Electromagnetic Spectrum?

Accepted Answer

Sound waves

Answer

Microwaves

Answer

Radio waves

Answer

Infrared waves

Question 23

Which of the following waves have the lowest frequency on the Electromagnetic Spectrum?

Accepted Answer

Radio waves

Answer

Ultraviolet waves

Answer

Infrared waves

Answer

Microwaves

Question 24

Which of the following has the highest frequency on the Electromagnetic Spectrum?

Accepted Answer

Gamma rays

Answer

Infrared rays

Answer

Microwaves

Answer

Radio waves

Question 25

Approximately, what is the wavelength of the wave shown?

Accepted Answer

8

Answer

3

Answer

12

Answer

6

Question 26

Which of the following waves has the highest frequency?

Accepted Answer

4

Answer

1

Answer

2

Answer

3

Question 27

Which of the following waves has the longest wavelength?

Accepted Answer

3

Answer

1

Answer

2

Answer

4

Question 28

What type of Waves are pictured here?

Accepted Answer

Transverse

Answer

Longitudinal

Answer

Surface

Answer

Ocean

Question 29

Which of the following Waves has the largest Amplitude?

Accepted Answer

A

Answer

B

Answer

C

Answer

D

Answer

E

Question 30

Which of the following Waves has a greater Frequency?

Accepted Answer

Violet

Answer

Red

Question 31

What represents the Energy of a Wave?

Accepted Answer

Amplitude

Answer

Frequency

Answer

Speed

Answer

Wavelength

Question 32

If you blow into a trumpet, the air vibrates inside and creates the wave pattern seen in the diagram.

Which of the following would describe the wave?

Accepted Answer

It is traveling in the same direction as the vibration

Accepted Answer

It travels in Compressions and Rarefactions

Answer

The Particles move up and down

Answer

The waves do not need a medium to go through

Question 33

What does the Red Line shown in the picture represent in a Longitudinal Wave?

Accepted Answer

Compression

Answer

Rarefaction

Answer

Amplitude

Answer

Frequency

Question 34

What does the Blue Line shown in the picture represent in a Longitudinal Wave?

Accepted Answer

Rarefaction

Answer

Compression

Answer

Amplitude

Answer

Frequency

Question 35

How do compressions and rarefactions contribute to sound propagation?

Accepted Answer

They form a pattern that transfers energy though the medium

Answer

They create regions where the particles stop moving

Answer

They change the color of the sound wave

Answer

They affect the speed of light in the medium

Question 36

The greater the Amplitude and Frequency of a Wave, the greater the...

Accepted Answer

Energy

Answer

Wavelength

Answer

Compressions

Answer

Rarefactions

Question 37

How do landline telephones change voice into electrical signals?

Accepted Answer

They convert voice into electrical signals using a microphone that transforms sound waves into varying electrical currents.

Answer

A speaker amplifies the voice before sending it through wires.

Answer

Landline telephones use fiber optics to transmit voice signals.

Answer

Voice is converted into digital signals by a computer chip.

Question 38

What is a limitation of analog signals used by landline telephones?

Accepted Answer

Signal degradation over long distances.

Answer

High fidelity sound quality.

Answer

Unlimited range without distortion.

Question 39

How do Fiber Optics affect data transmission speeds?

Accepted Answer

Fiber optics significantly increase data transmission speeds.

Answer

Fiber optics have no effect on data transmission speeds.

Answer

Fiber optics decrease data transmission speeds.

Answer

Fiber optics only improve data transmission for short distances.

Question 40

Electrical signals become transmitted by being converted to light signals in what form of communication?

Accepted Answer

Fiber optic communication

Answer

Wireless communication

Answer

Satellite communication

Answer

Coaxial cable communication

Question 41

What role does Electrical Signals play in modern technology?

Accepted Answer

They are essential for communication and sending information efficiently.

Answer

They are only used for lighting purposes.

Answer

They have no impact on device performance.

Answer

They are primarily used for heating systems.

Question 42

Which graph displays an Analog Signal

Accepted Answer

The Left Graph

Answer

The Right Graph

Question 43

Which graph displays a Digital Signal

Accepted Answer

The Right Graph

Answer

The Left Graph

Question 44

How are Analog Signals transferred?

Accepted Answer

Analog signals are transferred through continuous waveforms over various mediums.

Answer

Analog signals are transferred as discrete packets.

Answer

Analog signals are transmitted only through fiber optics.

Answer

Analog signals are sent using digital encoding techniques.

Question 45

How are Digital Signals transferred?

Accepted Answer

Digital signals are transferred by converting data into binary format and transmitting it over various mediums.

Answer

Digital signals are transferred using analog waves.

Answer

Digital signals are transmitted through physical mail.

Answer

Digital signals are sent as sound waves.

Question 46

What type of signal varies smoothly over time and is used in traditional AM and FM radio broadcasts?

Accepted Answer

Analog signal

Answer

Digital signal

Answer

Square wave signal

Answer

Pulse signal

Question 47

What is an advantage to Digital Signals?

Accepted Answer

Greater resistance to noise and interference.

Answer

More complex to transmit over long distances.

Answer

Higher power consumption.

Answer

Easier to process than analog signals.

Question 48

How does Wi-Fi transmit or send data?

Accepted Answer

Digital Signals

Answer

Sound Waves

Answer

Light Waves

Answer

Magnetic Pulses

Question 49

Higher Frequencies have shorter...

Accepted Answer

wavelengths

Answer

amplitudes

Answer

frequencies

Answer

signals

Question 50

Loudness is directly related to...

Accepted Answer

Amplitude of sound waves

Answer

Speed of sound waves

Answer

Duration of sound waves

Answer

Frequency of sound waves

Unit 3: Waves and Information Technology - Review

50 questions

A path for electric current to follow is also known ________________.

The measure of how hard it is for current to flow through an object

A message transmitted electronically

Allow for a record of numerical values of an action at a set of continuous time intervals

Which of the following is an example of a technology used in communication?

Which of the following components are found in an electric circuit?

Can Sound be transmitted though waves?

What unit of measurement is used to measure electric current?

Which of the following is a wireless technology used for internet connectivity?

Coding system that Digital Signals rely on

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