AQA GCSE Physics Higher Tier Paper 2

A student investigated the refraction of light by a glass block. Figure 1 shows the protractor used to measure the angles of incidence and the angles of refraction. What is the resolution of the protractor used to measure the angles?

Describe a method the student could have used to obtain the data in Table 1. You may include a labelled diagram.

Figure 2 shows some of the results from the investigation. Table 2 shows additional results. Complete Figure 2. You should:
• plot the results from Table 2
• draw the line of best fit.

How does the completed graph show that the angle of refraction is not directly proportional to the angle of incidence?

Figure 4 shows a ray of light incident on the reflective surface of a car headlight. Complete Figure 4 to show the reflected ray of light. You should include the normal line at the point where the incident ray meets the reflecting surface.