Electromagnetic Spectrum Exploration

Which type of electromagnetic wave has the longest wavelength?

• Gamma rays

• Visible light

• Radio waves

• Ultraviolet light

What is the relationship between wavelength and frequency in electromagnetic waves?

• They are directly proportional to each other.

• They are inversely proportional to each other.

• They are unrelated.

• They are only related in visible light.

Which application is NOT a use of the electromagnetic spectrum?

• Microwave cooking

• GPS technology

• Sound transmission in water

• Cancer treatment using radiation

What color in the visible light spectrum has the shortest wavelength?

• Red

• Green

• Blue

• Violet

How do radio waves differ from X-rays?

• Radio waves have a higher frequency than X-rays.

• Radio waves are only used in medicine, while X-rays are used in communication.

• Radio waves have a longer wavelength than X-rays.

• X-rays can be seen with the naked eye, but radio waves cannot.

Which of the following is a common use of the electromagnetic spectrum in everyday life?

• Cooking food in a conventional oven

• Using a compass for navigation

• Broadcasting radio and television signals

• Listening to acoustic music

What is the correct order of the electromagnetic spectrum from shortest to longest wavelength?

• Radio waves, microwaves, infrared, visible light, ultraviolet, X-rays, gamma rays

• Gamma rays, X-rays, ultraviolet, visible light, infrared, microwaves, radio waves

• Ultraviolet, visible light, infrared, microwaves, radio waves, X-rays, gamma rays

• Visible light, infrared, microwaves, radio waves, ultraviolet, X-rays, gamma rays

Which of the following is true about the visible light spectrum?

• It contains all the colors that the human eye cannot see.

• It is the only part of the electromagnetic spectrum that can be detected by the human eye.

• It has the highest frequencies in the electromagnetic spectrum.

• It is used exclusively in telecommunications.

What is the primary difference between ultraviolet light and infrared light?

• Ultraviolet light has a longer wavelength than infrared light.

• Infrared light is visible to the human eye, but ultraviolet light is not.

• Ultraviolet light has a shorter wavelength and higher energy than infrared light.

• Infrared light is used in remote controls, while ultraviolet light is not used in technology.

Why are X-rays used in medical imaging?

• Because they can easily be reflected by soft tissues

• Because they have long wavelengths that can penetrate through the body

• Because they have short wavelengths that can penetrate through the body and are absorbed differently by various tissues

• Because they are completely safe and have no side effects