Lesson Plan: 4P.1.02

Hamble Lesson Observation Plan
Learning About
How can waves behave?
Keywords:
  • Wave (5)
  • Wave Superposition: Where two or more waves are laid over each other adding and cancelling. (1)
  • Peak (1)
  • Trough (1)
  • Diffract: The dispersion of waves in a tank. (1)
  • Refraction: A change in direction of a wave. (1)
  • Transverse (1)
  • Reflection: Bouncing of waves. (1)
  • Ripple tank: A tank where wave effects can be easily shown. (1)
Memory Anchor:
Method Precise Learning Objective Linked Question / Activity
(Designed for maximum working out)
Stepping Stones Pitstop Check
(Thinking Map)
W Ripple tanks can be used to see how water waves behave. This allows us to predict how other waves will behave.

Use mini ripple tank with webcam.

W The peaks can be seen as wave fronts in a ripple tank.

T Waves on water as undulations which travel through water with transverse motion as the wave moves horizontally but the water moves up and down. What type of wave is a water wave?

Mexican Waves

W Water waves can be reflected. This is when waves bounce off an object. What is reflection?

Metal strip at an angle in ripple tank.

W Water waves can be refracted. This is when waves change direction. What is refraction?

Perspex shape in ripple tank

W Water waves can be diffracted. This is when waves spread out through a gap. What is diffraction?

Two metal strips in line with small gap between in ripple tank

D Research rogue waves. https://www.google.co.uk/search?q=rogue waves

Use computers in S7

W Water waves can add or cancel - superposition: When peaks meet you get bigger peaks. When a peak meets a trough then they cancel out. What is wave superposition?

http://www.acs.psu.edu/drussell/Demos/superposition/superposition.html http://www.acs.psu.edu/drussell/Demos/superposition/pulses.gif

Links To the Big Ideas
ForcesParticlesEnergyCells