Question

1. what is refraction? the bending of light due to a change in its speed
2. refraction can happen when light passes from one medium into another. why does it happen?
3. what is resonance? ____ give 2 examples of resonance: ____
4. what is the difference between infrasonic and ultrasonic sounds?
5. what colors (roy g biv) does a white bunny reflect?
6. what colors (roy g biv) does a black tire reflect?

electromagnetic spectrum chart with wavelength (meters) and frequency (hz) axes, showing radio, microwave, infrared, visible, ultraviolet, x - ray, gamma ray

1. which side of the em spectrum (radio waves side or gamma rays side) has the longest wavelength?
2. which side has the highest energy? ____ the lowest energy? ____
3. which side has the highest frequency? ____ the lowest frequency? ____

Explanation:

Question 24

Refraction occurs because the speed of light changes when it moves from one medium (like air) to another (like water or glass) with a different optical density. The change in speed causes the light to bend.

Resonance is the phenomenon where an object vibrates with maximum amplitude at a specific frequency (its natural frequency) when exposed to an external force at that same frequency. Examples include a swing (pushed at its natural frequency to go higher) and a wine glass shattering when a singer hits a note matching the glass's natural frequency.

Infrasonic sounds have frequencies below 20 Hz (inaudible to humans), while ultrasonic sounds have frequencies above 20,000 Hz (also inaudible to humans). Infrasonic examples: earthquakes, elephant communication. Ultrasonic examples: bat echolocation, medical ultrasounds.

Answer:

Refraction happens because the speed of light changes as it passes from one medium to another with a different optical density, causing the light to bend.

Question 25