📚 Topic Summary
Reflection of light is when light bounces off a surface. The way light reflects determines how we see objects. Smooth surfaces like mirrors create clear reflections, while rough surfaces scatter light, making the object appear less clear. Understanding the laws of reflection helps us design things like telescopes and understand how our eyes work!
🔎 Part A: Vocabulary
Match the term with its correct definition:
| Term |
Definition |
| 1. Incident Ray |
A. The angle between the reflected ray and the normal. |
| 2. Reflected Ray |
B. An imaginary line perpendicular to the surface. |
| 3. Normal |
C. The angle between the incident ray and the normal. |
| 4. Angle of Incidence |
D. The light ray that bounces off a surface. |
| 5. Angle of Reflection |
E. The light ray that strikes a surface. |
✍️ Part B: Fill in the Blanks
Complete the following sentences using the words provided: smooth, angle of incidence, reflection, rough, normal, angle of reflection.
- The bouncing back of light is called __________.
- According to the laws of reflection, the __________ is equal to the __________.
- A __________ surface will create a clear reflection.
- A __________ surface will scatter light in different directions.
- The __________ is a line perpendicular to the reflecting surface at the point of incidence.
🤔 Part C: Critical Thinking
Imagine you're designing a bicycle reflector to make cyclists more visible at night. What properties should the reflector have to maximize its effectiveness? Explain your reasoning.