What is a wavelength?

The distance between successive crests/troughs of a wave.

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

The speed at which a wave travels through a medium.

The frequency of a wave measured in hertz.

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

Amplitude is the length of a wave.

Amplitude is the speed of sound in a medium.

Amplitude is the frequency of a wave.

Frequency is the rate at which a repeating wave occurs.

Frequency is the measure of temperature changes.

Frequency refers to the loudness of a sound.

Frequency is the distance between two points.

What is the Crest of a Wave?

The distance between two waves.

What is the Trough of a Wave?

The distance between two consecutive waves.

The speed at which the wave travels.

Which side of a typical battery has more potential energy?

The positive side has more potential energy.

The negative side has more potential energy.

Both sides have equal potential energy.

The battery has no potential energy.

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?

It is traveling in the same direction as the vibration

It travels in Compressions and Rarefactions

The waves do not need a medium to go through

How do compressions and rarefactions contribute to sound propagation?

They form a pattern that transfers energy though the medium

They create regions where the particles stop moving

They change the color of the sound wave

They affect the speed of light in the medium

How do landline telephones change voice into electrical signals?

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

A speaker amplifies the voice before sending it through wires.

Landline telephones use fiber optics to transmit voice signals.

Voice is converted into digital signals by a computer chip.

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

Signal degradation over long distances.

Unlimited range without distortion.

How do Fiber Optics affect data transmission speeds?

Fiber optics significantly increase data transmission speeds.

Fiber optics have no effect on data transmission speeds.

Fiber optics decrease data transmission speeds.

Fiber optics only improve data transmission for short distances.

What role does Electrical Signals play in modern technology?

They are essential for communication and sending information efficiently.

They are only used for lighting purposes.

They have no impact on device performance.

They are primarily used for heating systems.

How are Analog Signals transferred?

Analog signals are transferred through continuous waveforms over various mediums.

Analog signals are transferred as discrete packets.

Analog signals are transmitted only through fiber optics.

Analog signals are sent using digital encoding techniques.

How are Digital Signals transferred?

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

Digital signals are transferred using analog waves.

Digital signals are transmitted through physical mail.

Digital signals are sent as sound waves.

What is an advantage to Digital Signals?

Greater resistance to noise and interference.

More complex to transmit over long distances.

Easier to process than analog signals.

Unit 3: Waves and Information Technology - Review

Authored by Jacob Knapp

Science

8th Grade

NGSS covered

Used 22+ times

Unit 3: Waves and Information Technology - Review

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50 questions

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MULTIPLE CHOICE QUESTION

30 sec • 1 pt

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

A type of battery

A method of storing energy

A device for generating electricity

A path for electric current to flow

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

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

Voltage

Current

Power

Resistance

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

A message transmitted electronically

Signal

Current

Resistance

Wavelength

Tags

NGSS.MS-PS4-3

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

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

Digital Signals

Analog Signals

Optical Fibers

Pixels

Tags

NGSS.MS-PS4-3

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

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

Television

Microwave

Car

Social Media

Tags

NGSS.MS-PS4-3

MULTIPLE SELECT QUESTION

45 sec • 1 pt

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

Switch

Battery

Light bilb

Resistor

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Can Sound be transmitted though waves?

Yes

Tags

NGSS.MS-PS4-1

NGSS.MS-PS4-2

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Unit 3: Waves and Information Technology - Review

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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