Question

an echo is an example of the _______ of sound waves
a reflection
b refraction
in order for the eye to see an object, ____________ from the object must be reflected to your eye.
a particles
b light
seeing yourself in the mirror is an example of ____________ reflection.
a light
b sound

Explanation:

• First question: An echo occurs when sound waves bounce back (reflect) off a surface. Reflection is the process of waves bouncing back. Refraction is the bending of waves when they enter a different medium.
• Second question: For the eye to see an object, light from the object must be reflected to the eye. Particles are not what is reflected for vision in this context.
• Third question: Seeing yourself in a mirror is an example of light reflection. Sound reflection would be related to echoes, not mirror images.

Answer:

1. A. reflection
2. B. light
3. A. light