Wave Interactions and Phenomena

The video tutorial covers various wave interactions, including reflection, refraction, diffraction, absorption, interference, and resonance. Each interaction is explained with examples, such as light reflecting off shiny objects, refraction in a glass of water, and sound absorption by pillows. The tutorial also discusses constructive and destructive interference, as well as resonance, where vibrations match an object's natural frequency.

What is the term for a wave bouncing off a surface and changing direction?

• Absorption

• Reflection

• Diffraction

• Refraction

Which phenomenon occurs when a wave changes speed as it enters a new medium at an angle?

• Refraction

• Absorption

• Reflection

• Diffraction

What is the term for the spreading of waves around obstacles or through openings?

• Reflection

• Refraction

• Diffraction

• Absorption

How does a pillow affect sound waves when someone screams into it?

• It absorbs the sound waves.

• It refracts the sound waves.

• It reflects the sound waves.

• It diffracts the sound waves.

What is the effect of diffraction on light waves passing through a narrow opening?

• They are absorbed.

• They are reflected.

• They spread out.

• They change speed.

Which wave interaction involves energy transfer to the material it encounters?

• Absorption

• Diffraction

• Refraction

• Reflection

What happens during constructive interference?

• Waves bend around obstacles.

• Waves change speed.

• Waves cancel each other out.

• Waves form a larger wave.

What is the result of destructive interference?

• A larger amplitude is formed.

• Waves are absorbed.

• A smaller amplitude is formed.

• Waves are reflected.

What is resonance?

• The absorption of sound waves by a material.

• The increase in amplitude when external vibrations match an object's natural frequency.

• The reflection of light waves.

• The bending of waves around a barrier.

Which of the following is an example of resonance?

• Light bending in water.

• Sound waves being absorbed by a pillow.

• A swing moving in sync with another swing.

• Light reflecting off a mirror.