UC T3 Review

As the frequency of a wave increases;

• I. wavelength increases, crests move closer together

• II. wavelength decreases, crests move closer together

• III. requires more energy

• IV. requires less energy

Arrange the colors of the visible light spectrum in order from longest wavelength to shortest wavelength.

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

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

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

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

Which of the following are considered the primary colors in the additive color model?

• red, yellow and blue

• red, green and yellow

• red, yellow and green

• red, green and blue

What color is produced when the three primary colors of light are combined?

• white light

• black light

• grey light

• a shadow

In a digital display, the concept of color mixing is applied. Upon close inspection, the screen is composed of lines of ...

• red, blue and yellow pixels

• blue, green and red pixels

• cyan, magenta and yellow pixels

• all shades of visible spectrum

Which of the following are considered secondary colors of light?

• cyan, magenta, and yellow

• red, green, and blue

• orange, purple, and green

• yellow, green, and magenta

Match the form of electromagnetic radiation with the description that best suits it.

• Used in medical imaging to view inside the body.

• infrared waves

• Used in remote controls and thermal imaging.

• X-rays

• Responsible for causing sunburns and skin damage.

• ultraviolet waves

Match the form of electromagnetic radiation with the description that best suits it.

• High-energy radiation that can penetrate most materials

• Gamma rays

• Electromagnetic radiation used for cooking food

• Radio waves

• Long wavelength electromagnetic radiation used for communication

• Microwaves

Match the following term with its correct definition.

• The height of the wave above the rest

• Visible Light Spectrum

• The number of occurrences of a repeating event per unit of time.

• Electromagnetic Radiation

• The range of wavelengths of light that are visible to the human eye.

• Amplitude

• Energy that travels through space in the form of waves.

• Frequency

Match the following term with its correct definition.

• The production of light by living organisms

• Bioluminescence

• Electromagnetic radiation with a wavelength shorter than visible light

• Phosphor

• A substance that exhibits the phenomenon of luminescence

• Ultraviolet Radiation

• A system for detecting objects using radio waves

• Radar