Reflection, Refraction and Total Internal Reflection Quiz
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5 questions, one answer each
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1. What is refraction?
- A. A. A wave bouncing back off a surface
- B. B. A wave changing direction due to a change in speed at a boundary
- C. C. A wave being fully absorbed
- D. D. A wave increasing in frequency
2. When light travels from air into a denser material like glass, what typically happens to its speed and direction?
- A. A. It speeds up and bends away from the normal
- B. B. It slows down and bends towards the normal
- C. C. It stays the same speed and direction
- D. D. It stops travelling completely
3. (HT) Which type of seismic wave cannot travel through the Earth's liquid outer core?
- A. A. P-wave
- B. B. S-wave
- C. C. Both P-waves and S-waves
- D. D. Neither wave is affected by liquids
4. (HT) A ship uses reflected sound waves to measure the depth of the seabed beneath it. Which technique is this?
- A. A. Ultrasound imaging
- B. B. Echo sounding
- C. C. Seismic refraction
- D. D. Radio transmission
5. A wave arrives at the boundary between two materials. Scientists detect that some of the wave bounces back, some is absorbed, and some passes through and changes direction. Which combination of processes has occurred?
- A. A. Reflection and refraction only
- B. B. Reflection, absorption and transmission (with refraction)
- C. C. Absorption only
- D. D. Transmission with no change in direction