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3 cards from this section. Quick, good the night before a test.
What is the main principle behind rectilinear propagation?
Think about how shadows are made.
What happens when light hits a mirror?
Consider how you see your reflection.
What does rectilinear propagation refer to?
Consider how shadows form.
True or False: When light hits a mirror, it refracts.
Think about how you see yourself in a mirror.
If a beam of light hits a surface at a 45-degree angle, what is the angle of reflection? Explain your reasoning.
Use a protractor to visualize the concept.
Design an experiment to demonstrate refraction using a glass of water and a pencil. Describe what you expect to observe.
Think about how air and water have different densities.
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