Lesson Plan: P2.4.10

Hamble Lesson Observation Plan
Learning About
What is refraction?
Keywords:
  • Velocity: a vector that includes speed and a direction (1)
  • Boundary: the point where two mediums meet (1)
Memory Anchor:
Method Precise Learning Objective Linked Question / Activity
(Designed for maximum working out)
Stepping Stones Pitstop Check
(Thinking Map)
Students should be able to explain in qualitative terms, how the differences in velocity, absorption and reflection between different types of wave in solids and liquids can be used both for detection and exploration of structures which are hidden from direct observation. (Physics Only) Explain how the differences in velocity, absorption and reflection between different types of wave in solids and liquids can be used both for detection and exploration of structures which are hidden from direct observation?

GF: Describe how the Sun's light and infrared radiation is transmitted to heat the Earth.

Students should be able to construct ray diagrams to illustrate the refraction of a wave at the boundary between two different media. How should ray diagrams to illustrate the refraction, be constructed?

Observe what happens when light travels through mediums of different densities. Measure the angles.

Some effects, for example refraction, are due to the difference in velocity of the waves in different substances. (HT only) What is the cause of refraction?

Use the phet animation to show what happens during refraction. https://phet.colorado.edu/en/simulation/bending-light

Students should be able to use wave front diagrams to explain refraction in terms of the change of speed that happens when a wave travels from one medium to a different medium. (HT only) How can refraction be explained?

EW: What is refraction and when does it occur?

Links To the Big Ideas
ForcesParticlesEnergyCells