Waves and Informational Technologies

What is a wave?

• A wave is a disturbance that transfers energy through a medium or space without transferring matter.

• A wave is a disturbance that transfers matter through a medium or space without transferring energy.

• A wave is a disturbance that transfers energy through a medium or space by transferring matter.

• A wave is a disturbance that transfers both matter and energy through a medium or space.

Name three types of waves.

• radio waves, heat waves, and seismic waves

• sound waves, light waves, and ocean waves

• mechanical waves, electromagnetic waves, and matter waves

• gravity waves, X-rays, and gamma rays

What are the properties of waves?

• Temperature, pressure, and humidity

• Color, intensity, and duration

• Mass, volume, and density

• Amplitude, wavelength, frequency, speed, and direction of propagation

Which type of wave does not require a medium to travel through?

• Sound waves

• Transverse waves

• Electromagnetic waves

• Mechanical waves

What is the speed of light in a vacuum?

• 3,000,000 meters per second

• 299,792,458 meters per second

• 1,000,000,000 meters per second

• 100,000 meters per second

What are the different colors of the visible light spectrum?

• red, orange, yellow, green, blue, indigo, and violet

• red, orange, yellow, green, blue, indigo, and violet

• red, orange, yellow, green, blue, indigo, and purple

• red, orange, yellow, green, blue, and violet

What is the primary use of radio waves?

• cooking food

• generating electricity

• detecting earthquakes

• communication and broadcasting

What is the difference between analog and digital technologies?

• Analog technology uses digital signals, while digital technology uses analog signals.

• Analog technology uses continuous signals, while digital technology uses discrete signals.

• Analog technology is more reliable than digital technology.

• Analog technology is outdated and no longer used in modern devices.

What is the basic unit of digital information?

• byte

• bit

• megabyte

• gigabyte

Name two common digital storage devices.

• RAM and ROM

• HDD and SSD

• USB and CD

• Floppy disk and Tape drive