Waves

2 fixas By: Felipe Tomazoni

Summary: A wave is how various things in the universe move, it's the type of form that something takes. There are two basic types of wave: Electromagnetic, and Mechanical, with the main difference between them being how Mechanical waves need a medium, or matter to move, however an Electromagnetic wave can move through nothingness, also known as vacuum. Then there are two more sub types of waves, Transverse, and Longitudinal waves, which have to do with how the wave moves. A transversal wave goes up and down in humps and troughs, while a longitudinal wave compresses at different parts.

SP3: Planning and carrying out investigations
In order to figure out how sound moves and reacts to different states of matter, we did a lab that involved hitting tuning forks against a table and touching it to different things to see how the items would react. During the investigation, we found that the vibrating tuning fork would make water jump, and when a ball on a string would touch it, the ball would bounce away, no matter how softly we touched it with the vibrating fork.

XCC: Energy and Matter

Lots of different forms of energy travel as waves, such as sound energy, which travels as a longitudinal wave. Matter is needed for the existence of mechanical waves, which need a matter as a medium that they can pass through. Sound is a prime example of this as it can only travel through matter and cannot exist in a vacuum, and it is a type of energy, meaning that energy and matter are incredibly important to the existence of waves.