Conceptual Understanding
Waves interact with matter to produce consistent measurable patterns which we can use to aid our understanding of how the world around us works
Key Concepts
Relationships
Related Concepts
Interaction, Patterns
Global Context & Explorations
Scientific and technical innovation
Statement of Inquiry
The interaction of particles and energy produces patterns in nature, and we use the relationships among those patterns to study our world at a range of scales, from the atomic to galactic.
Inquiry Questions
Factual What kinds of patterns are created by the interactions of waves with their surroundings?
Conceptual How can we use these patterns to understand more about waves?
Debatable Has the knowledge and understanding of waves that we have acquired over the past few centuries had a positive effect on our society?
LEARNING TARGETS
Criterion A Learning Targets:
Knowing and Understanding
State examples of simple harmonic motion (SHM)
Describe how the displacement, speed, kinetic energy and potential energy of an object changes over time as it undergoes simple harmonic motion
Define the terms displacement, amplitude, frequency and period
State that progressive (travelling) waves transfer energy.
Describe the terms crest, trough, compression and rarefaction.
Define the term wavelength
Describe and give examples of transverse and of longitudinal waves.
Apply the relationship between wave speed, wavelength and frequency.
State that all electromagnetic waves travel with the same speed in free space (a vacuum)
Recall the principal radiations in the electromagnetic spectrum in order of wavelength and/or frequency
Outline the uses of each type of electromagnetic radiation
Describe waves in two dimensions, including the concepts of wavefronts and of rays.
Describe the reflection and transmission (refraction) of waves at a boundary between two media.
Outline how the diffraction of waves at apertures (gaps) and obstacles depends upon the wavelength and the size of the aperture.
Describe examples of diffraction.
Criterion B Learning Targets:
Inquiring and Designing
Explain a problem or question to be tested by an investigation into the reflection, refraction, or diffraction of waves. Formulate and explain a testable hypothesis about the reflection, refraction, or diffraction of waves.
Explain how to manipulate variables and collect sufficient, reliable data in an investigation about the reflection, refraction, or diffraction of waves.
Design a logical, safe, and complete method in which the student selects appropriate materials and equipment.
Criterion C Learning Targets:
Processing and Evaluating
Collect, organize, transform, and present data in a clear and coherent form
Understand that all raw data has an associated experimental error and estimate or calculate the size of these errors
Interpret and explain results using correct scientific reasoning.
Evaluate the validity of a hypothesis and a method based on the outcome of the investigation.
Explain improvements or extensions to the method which would benefit the investigation.