Why echoes bounce back. Why pools look shallow. Why you hear around corners.

Students practice identifying and explaining the four wave behaviors: reflection, refraction, diffraction, and absorption. Real-world applications from sonar to optical illusions.

**What's Covered:**

✓ Reflection — bouncing waves, echoes vs reverberations

✓ Refraction — bending at boundaries, speed and direction changes

✓ Diffraction — spreading through openings, bending around obstacles

✓ Absorption — energy loss, heating effects

✓ Applications — sonar, radar, optical illusions explained

✓ Answer key included

✓ Print-ready PDF

**Question Types:**

→ Multiple choice

→ Short answer

→ Problem-solving scenarios

**Perfect For:**

- Homework or classwork

- Quiz prep

- Waves unit review

⭐ **Pro Tip:** Have students complete this worksheet, then revisit it after optics — they'll see the same four behaviors apply to light. Waves are waves.