Effects and Dangers of Electromagnetic Waves

The video explains the electromagnetic spectrum, detailing the types of waves from radio waves to gamma rays. It covers the uses of each type, such as sterilization with gamma rays and cooking with microwaves, and discusses the dangers associated with them, like cancer risks from x-rays and gamma rays. The video emphasizes that as wavelength decreases, the potential danger increases.

Which of the following has the largest wavelength in the electromagnetic spectrum?

• Gamma rays

• Ultraviolet rays

• Radio waves

• X-rays

What is a common use of gamma rays?

• Cooking food

• Sterilizing equipment

• Seeing heat signatures

• Transmitting signals

Which type of electromagnetic wave is used to look inside the human body?

• Radio waves

• Microwaves

• X-rays

• Infrared

What is a potential danger of microwaves?

• Causing skin burns

• Heating water in tissues

• Causing blindness

• Mutating cells

What is a common effect of infrared radiation?

• Causing skin cancer

• Heating objects

• Transmitting radio signals

• Causing mutations

What can happen if you look at a light source for too long?

• You could go blind

• You could get a sunburn

• You could develop cancer

• You could get a headache

What is a danger associated with ultraviolet rays?

• Heating water in tissues

• Transmitting signals

• Causing skin burns and cancer

• Causing blindness

What is a potential risk of exposure to x-rays?

• Causing skin burns

• Causing mutations

• Causing cancer

• Causing blindness

What is a significant danger of gamma rays?

• Causing blindness

• Causing skin burns

• Heating water in tissues

• Causing mutations and cancer