Light Energy
Light energy is the only form of energy that we can actually see directly. In fact visible 'light' is a form of radiation, which can be defined as an energy that travels in the form of electromagnetic waves.
KEY POINTS:
1. Light is a form of electromagnetic radiation;
2. Light energy moves as a transverse wave.
KEY POINTS:
1. Light is a form of electromagnetic radiation;
2. Light energy moves as a transverse wave.
Electromagnetic Spectrum
The electromagnetic spectrum is a continuum of all electromagnetic waves arranged according to frequency and wavelength. The sun, earth, and other bodies radiate electromagnetic energy of varying wavelengths.
Think about it like this - the radiation from your microwave isn't strong enough to give you sunburn but the radiation from the sun is.
Think about it like this - the radiation from your microwave isn't strong enough to give you sunburn but the radiation from the sun is.
Draw and Label a Light Wave
A wavelength can be defined as the distance between successive crests or troughs in a light wave.