Wave Propagation Interactions

When a sound wave hits a wall and echoes back, this is an example of what?

• Refraction
• Diffraction
• Reflection
• Interference

This image is representing what wave interaction?

• Refraction
• Diffraction
• Reflection
• Interference

What is the reason the pencil appears different under water?

• Interference
• Refraction
• Diffraction
• Reflection

An interaction that occurs when 2 waves meet is known as what?

• Diffraction
• Standing wave
• Interference
• Resonance

When 2 waves meet and there amplitude increases it is known as what?

• Constructive Interference
• Amplitude Addition
• Positive Interference
• Destructive Interference

Interference that causes a wave that appears to be standing still is known as what?

• Standing wave
• Resonance
• Destructive Interference
• Constructive Interference

An increase in the amplitude of a vibration is what?

• Interference
• Distortion
• Resonance
• Refraction

True or False: Every object has at least one natural frequency.

• True
• False

True or False: The angle of incidence always equals the angle of reflection

• True
• False

This causes rainbows

• Reflection
• Refraction
• Magic rays of sunshine
• Diffraction