The law of reflection
6th grade (Year 7 in England) · 16 questions · Common Core: NGSS.MS-PS4-2 · England: KS3 Physics: Waves (light)
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Question 1
A ray of light hits a flat mirror with an angle of incidence of 70°. What is the angle of reflection, in degrees?
Answer°
Question 2
A ray of light makes an angle of 20° with the surface of a mirror. What is the angle between the incident ray and the reflected ray, in degrees?
Answer°
Question 3
How does an image in a flat mirror compare with the object?
- A. the same in every way
- B. larger and upright
- C. same size, upright and laterally inverted (left–right swapped)
- D. smaller and upside down
Question 4
A ray of light hits a flat mirror with an angle of incidence of 30°. What is the angle of reflection, in degrees?
Answer°
Question 5
A ray of light makes an angle of 30° with the surface of a mirror. What is the angle of reflection, in degrees?
Answer°
Question 6
Why can you see your reflection in a mirror but not in a sheet of white paper?
- A. Paper is transparent
- B. Mirrors make light
- C. The mirror gives regular (specular) reflection; rough paper scatters light in all directions
- D. Paper absorbs all light
Question 7
A ray of light hits a flat mirror with an angle of incidence of 45°. What is the angle of reflection, in degrees?
Answer°
Question 8
A ray of light makes an angle of 50° with the surface of a mirror. What is the angle of reflection, in degrees?
Answer°
Question 9
Why can you see your reflection in a mirror but not in a sheet of white paper?
- A. The mirror gives regular (specular) reflection; rough paper scatters light in all directions
- B. Paper is transparent
- C. Mirrors make light
- D. Paper absorbs all light
Question 10
A ray of light hits a flat mirror with an angle of incidence of 20°. What is the angle of reflection, in degrees?
Answer°
Question 11
A ray of light makes an angle of 25° with the surface of a mirror. What is the angle between the incident ray and the reflected ray, in degrees?
Answer°
Question 12
The James Webb Space Telescope uses gold-coated mirrors. Why gold?
- A. Gold absorbs infrared light
- B. Gold makes the telescope heavier
- C. Gold reflects infrared light very well
- D. Gold is magnetic
Question 13
A ray of light hits a flat mirror with an angle of incidence of 40°. What is the angle of reflection, in degrees?
Answer°
Question 14
A ray of light makes an angle of 65° with the surface of a mirror. What is the angle between the incident ray and the reflected ray, in degrees?
Answer°
Question 15
How does an image in a flat mirror compare with the object?
- A. smaller and upside down
- B. the same in every way
- C. larger and upright
- D. same size, upright and laterally inverted (left–right swapped)
Question 16
A ray of light hits a flat mirror with an angle of incidence of 45°. What is the angle of reflection, in degrees?
Answer°
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