Physics: Age 15

6 illustrated Physics lessons for Age 15.

Long Red Waves, Short Blue Waves Light is an electromagnetic wave, and every colour has its own wavelength. Red light spreads over a longer wav…
Rotor Sorts Metal Scrap A spinning magnetic rotor creates electric currents inside pieces of aluminium. These currents produce a force…
Three Red Beams Crossing After a Lens Three parallel beams of red light travel toward a thick glass lens and pass through it. The curved glass bends…
Light Bending Into Water A narrow beam of light travelling through air hits the surface of water at a slant and changes direction as it…
Arrows That Show Speed The same ball is drawn at three points along a marked track, and each drawing carries an arrow pointing the wa…
The Wind a Moving Boat Feels A boat moving forward stirs up its own stream of air coming from straight ahead, and that stream adds to the w…