What is the main danger associated with ultraviolet, X-rays, and gamma rays?

True or False? Radio waves are known to be harmful to humans.

True or False? Microwaves can be harmful to humans.

True or False? Mobile phones emit microwave radiation.

True or False? Ultraviolet radiation can be harmful to humans.

True or False? X-rays and gamma rays can be harmful to humans.

True or False? Sunscreen absorbs ultraviolet light, preventing it from damaging the skin.

True or False? Ionising forms of electromagnetic radiation have a higher frequency than visible light.

True or False? The longer the wavelength, the more ionising the electromagnetic radiation.

State the purpose of the device in the image.

Define electromagnetic waves.

Define the electromagnetic spectrum.

What is the speed of electromagnetic waves in a vacuum?

List the seven types of electromagnetic wave in order of increasing frequency.

All electromagnetic waves are ______ waves that can travel through a ______.

True or False? All electromagnetic waves travel at the same speed as each other in a vacuum.

Define the term fluorescence.

What is the main application of radio waves?

What are the two main applications of microwaves?

True or False? Night vision cameras use infrared radiation.

True or False? Gamma radiation is used in fibre optic communications.

True or False? Sterilising water and detecting fake bank notes are two applications of X-rays.

True or False? Visible light is the only part of the electromagnetic spectrum that human eyes can see.

True or False? Remote controls are one application of ultraviolet radiation.

State the type of radiation used in the device in the diagram.