WAVES AND THE EM SPECTRUM - NAT 5 PHYSICS

SUMMARY OF THE WAVES AND EM SPECTRUM UNIT

What is a Transverse Wave?

A wave in which the particles vibrate 90 degrees parallel to the direction the energy is travelling

What is a Longitudinal Wave?

A wave in which the particles vibrate in the same direction the energy is travelling

What is Refraction?

When a wave changes speed upon passing through a medium

What is Diffraction?

When waves bend around an objecth

How does Density affect Refraction?

Wave speed slows down when the waves enters a denser medium making it bend towards the normal. Vice versa

What is the E.M Spectrum?

Gamma, X-ray, Ultraviolet, Visible light, Infrared, Microwaves, TV, Radio

What are the relative Wavelengths of the E.M spectrum? (In order)

10x-12, 10x-10, 10x-8, 0.5 10x-6, 10x-5, 10x-2, 10×3

What are the Relative Frequencies for the E.M Spectrum? (In order)

10x20, 10x18, 10x16, 10x5, 10x12, 10x8, 10x4