3c - the electromagnetic spectrum

state the electromagnetic spectrum.

radiowaves, microwaves, infrared, visible light, ultraviolet, x-rays, gamma rays

what order is the electromagnetic spectrum in?

increasing wavelength and decreasing frequency

what speed to electromagnetic waves travel at?

3 x 10^8 m/s in free space

what are some uses of radiowaves?

broadcasting and communications

what are some uses of microwaves?

cooking and satellite transmissions

what are some uses of infrared radiation?

heaters and night vision equipment

what are some uses of visible light?

optical fibres and photography

what are some uses of ultraviolet radiation?

fluorescent lamps

what are some uses of x-rays?

observing the internal structure of objects and materials, including for medical applications

what are some uses of gamma rays?

sterilising food and medical equipment

what are the detrimental effects of microwaves?

internal heating of body tissue

what are the detrimental effects of infrared radiation?

skin burns

what are the detrimental effects of ultraviolet radiation?

damage to surface cells and blindness

what are the detrimental effects of gamma rays?

cancer, mutation

what are some protective measures against microwaves?

metal shielding, maintaining distance, limiting exposure

what are some protective measures against infrared radiation?

limiting exposure, wearing insulative materials, protective clothing

what are some protective measures against ultraviolet radiation?

wearing sunblock, using sunglasses

what are some protective measures against gamma rays?

lead shielding, limiting exposure