Free Printable Waves used in Tech Test Bank

Worksheets

Waves used in Tech Test Bank

Total questions: 18

Worksheet time: 9mins

Name

Class

Date

Digital information can be sent through the vacuum of space, but the information must be–

below a certain size

converted to pulse waves

encrypted for security reasons

sent in only one direction

Photodiodes are semiconductor devices that transform light into an electrical current. Photodiodes are used in many electronics, including remote controls and compact disc players. This technology depends on which specific characteristic of light?

Light waves can interact to create waves of greater or lesser amplitude.

Light waves scatter when they reflect off a rough, uneven surface.

Light can cause some materials to emit electrons when it strikes them.

Light travels faster through a vacuum than it does through a medium.

What types of waves are used in ultrasounds?

Sound

Light

Water

Microwave

Radio

Which of the following is NOT a drawback of using digital signals to send information

Expensive to store information

Low accuracy of signal

Small signal size

Less noise/ interference

You want to send an email- you have a choice of sending the email using digital or analog transmission methods. Which method will guarantee a higher degree of accuracy transmission

Digital

Analog

Both methods have the same accuracy

Binary code is an example of...

Digital data transmission

Analaog data transmission

Binary can be used in either format

A digital camera takes pictures by capturing information about the intensity and color of light for every tiny section of the image and then doing which of the following?

Converting the information to numeric data

Sending the information to a satellite

Creating an exact duplicate of the image

Storing the light in specialized cells

Ground penetrating radar uses radio waves to create images of various rock formations, including fossil fuels, deep underground. Radio waves are better than other electromagnetic waves for this purpose because longer wavelengths–

carry greater amounts of energy.

have the highest frequency.

travel further into a solid medium.

can be generated by nam-made devices.

Which of the following is best suited for viewing cracked ribs?

Ultrasound

MRI

X-Ray

CAT scan

10.

Television broadcasts may be transmitted by-

UV waves

infrared waves

microwaves

radiowaves

all of the above

11.

Which one of the objects in the picture uses digital waves?

Old TV

Clock

Record Player

12.

Which of the following devices primarily uses analog signals?

Laptop

Smartphone

Vinyl Record Player

Digital Clock

13.

What is the primary advantage of using digital signals over analog signals?

Limited data storage

Higher energy consumption

More complex circuitry

Better noise resistance

14.

Which of the following technologies relies on the principle of the photoelectric effect?

AM radio

Fiber optic cables

Bluetooth devices

Solar panels

15.

Which of the following devices is most likely to use analog signals for its operation?

AM Radio

Smartwatch

Digital Camera

Tablet

16.

What is a common advantage of using fiber optic cables for data transmission?

Ability to transmit analog signals

Low cost of installation

Limited bandwidth

High resistance to electromagnetic interference

17.

Which of the following technologies primarily relies on the use of microwaves?

AM/FM radios

Bluetooth devices

Wi-Fi routers

Infrared remote controls

18.

What is a common disadvantage of using analog signals for data transmission?

High energy consumption

Complex circuitry

Limited bandwidth

High noise interference

100 %

Waves used in Tech Test Bank

Total questions: 18

Worksheet time: 9mins

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