LIGHT BOXES: REFLECTION AND
REFRACTION
PART A: REFLECTION
You can line up a mirror and a ray with the diagrams to make observations.
Prediction
Draw your prediction for the reflected
ray
Observation
Trace/draw the observed ray
Try out these different angles of incidence and measure the angle the rays reflect
at. It will help to trace the rays on paper then measure the angle.
10o
30o
45o
80o
90o
Explain: Why did you observe the ray reflect at this angle?
Prediction
Draw your prediction for the reflected
rays. It helps to sketch the normal for
each ray
Observation
Trace/draw the observed rays
Prediction
Draw your prediction for the reflected
rays. It helps to sketch the normal for
each ray
Observation
Trace/draw the observed rays
Explain: Why did you observe the rays reflect at these angles?
PART B: REFRACTION
You can line up a lens and a ray with the diagrams to make observations.
Prediction
Draw your prediction for the refracted
ray. Don’t forget the second surface!
Observation
Trace/draw the observed ray
Angle of Incidence 1
Entering glass
Angle of Incedence 2
Exiting glass
Angle of Refraction 1
Entering glass
Angle of refraction 2
Exiting glass
30o
45o
90o
Explain: Why did you observe the ray refract at these angles?
Prediction
Draw your prediction for the refracted
rays. It helps to sketch the normal for
each ray
Observation
Trace/draw the observed rays
Prediction
Draw your prediction for the refracted
rays. It helps to sketch the normal for
each ray
Observation
Trace/draw the observed rays
Explain: Why did you observe the ray refract at these angles?
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