Unit 9 Blog Post #1

Today in class, we talked about unit 9. Unit 9  was about waves. Waves are disturbances through space or matter, accompanied with transfer of energy.  we started by learning a ton of vocabulary.  We talked about parts of waves like the crest and trough. Another term we learned was amplitude. Amplitude is the distance between the peak of the wave and the equilibrium point. We talked about changing the frequency of the wave. Frequency is how many cycles pass in a second. The unit for this is hertz (Hz). Another term we learned is vibration. A vibration is a wiggle in time and space. Mr. Blake told us that waving to people is just vibrating. That was an interesting truth we learned. Mr. Adams also was able to show us this cool example of a wave. We got to see the nodes and the anti-nodes in the wave and identify loops.

This is a picture of a slinky. The slinky in class was to show an example of waves. In a lab, we had to know over certain object with the slinky, but at the same time try to keep other objects up. The slinky is a very good way to show how a wave looks.