Electromagnetic Radiation Study Guide www.njctl.org Slide 3 / 42 - PDF document

Slide 1 / 42 Slide 2 / 42 Electromagnetic Radiation Study Guide www.njctl.org Slide 3 / 42 Define the following terms/concepts.

Slide 4 / 42 1 Electromagnetic Radiation Slide 5 / 42 2 Electromagnetic Spectrum Slide 6 / 42 3 Radio Wave

Slide 7 / 42 4 Microwave Slide 8 / 42 5 Radar Slide 9 / 42 6 Infrared Light

Slide 10 / 42 7 Visible Light Slide 11 / 42 8 Ultraviolet Radiation Slide 12 / 42 9 X-Rays

Slide 13 / 42 10 Gamma Rays Slide 14 / 42 11 Opaque object Slide 15 / 42 12 Transparent object

Slide 16 / 42 13 Reflection Slide 17 / 42 14 Absorption Slide 18 / 42 15 Refraction

Slide 19 / 42 Directions: Select the answer choice that best completes the statement or answers the question. Slide 20 / 42 16 Electromagnetic Radiation is produced by: A the sun B light bulbs C nuclear reaction D all of the above Slide 21 / 42 17 As electromagnetic waves travel, they do not lose energy. A True B False

Slide 22 / 42 18 Which of the following electromagnetic wavelengths would have the highest frequency? A 100 m B 10 m C 1 m D 0.1 m Slide 23 / 42 19 Which of the following forms of electromagnetic radiation has the shortest wavelength? A Visible light B X-Ray C Microwaves D Radio Waves Slide 24 / 42 20 Radio waves have the longest wavelengths of all electromagnetic waves. A True B False

Slide 25 / 42 21 How many primary colors are there in visible light? A 2 B 3 C 4 D 5 Slide 26 / 42 22 The highest energy electromagnetic waves are: A radio waves B visible light waves C gamma rays D x-rays Slide 27 / 42 23 If an object hit by white light appears green, which of the following colors of light must be absorbed by the object? A Red B Orange C Yellow D All of the above

Slide 28 / 42 24 When light travels from water to air, its speed: A increases B decreases C stays the same Slide 29 / 42 25 Which of the following waves in the visible light spectrum bends the most when it is refracted? A Orange B Yellow C Violet D Blue Slide 30 / 42 Directions: Answer the following thoroughly.

Slide 31 / 42 26 How do electromagnetic waves differ from mechanical waves? Slide 32 / 42 27 An electromagnetic wave has a frequency of 2 GHz (2,000,000,000 Hz). What is the wavelength of the wave? Slide 33 / 42 28 Red light has a frequency of 4.6 X 10 14 Hz (460,000,000,000,000 Hz). What is the wavelength of red light?

Slide 34 / 42 29 List the following electromagnetic waves in order of decreasing wavelength (increasing energy) – Gamma Rays, Microwaves, Radio Waves, Visible Light Waves, Ultraviolet Waves, X-Ray Waves, and Infrared Waves. Slide 35 / 42 30 Explain how a radio works, including its parts, as well as the difference between AM and FM radios. Slide 36 / 42 31 Why is it impossible for human beings to see infrared and ultraviolet light?

Slide 37 / 42 32 Compare/Contrast UVA, UVB, and UVC rays. Slide 38 / 42 33 Why are Gamma rays and X-Rays so dangerous to come into contact with? Slide 39 / 42 34 Explain how we perceive an object’s color.

Slide 40 / 42 35 How does a prism work? Slide 41 / 42 36 In relation to the “normal”, when light passes from air to water at an incident angle of 90 degrees, where will the light diffract to? Slide 42 / 42 37 How are X-Ray images captured?