I had a couple of questions on the topic of Waves-Sound and Light.

1. What is the source of all waves?
*Vibration*

2. In one word, what is it that moves from source to receiver in a wave motion?
*Energy*

3. Does the medium in which a wave travels move with the wave?
*No*

4. What is the relationship among frequency, wavelength and wave speed?
*wave speed=wavelength * frequency

3. #3 is wrong. The medium DOES move, back and forth.

The others are OK

#3is correct!!!!!!!!!! becuz in wave motion,it transfer WAVE ENERGY only without transferring the matter.Bear in mind!

5. What is the unit of measurement for frequency?

*Hertz (Hz)*

6. What is the unit of measurement for wavelength?
*Meters (m)*

7. What are the two types of waves?
*Transverse waves and longitudinal waves*

8. How do transverse waves and longitudinal waves differ?
*In transverse waves, the particles of the medium vibrate perpendicular to the direction of wave propagation, while in longitudinal waves, the particles of the medium vibrate parallel to the direction of wave propagation.*

9. Give an example of a transverse wave.
*Light waves*

10. Give an example of a longitudinal wave.
*Sound waves*

11. What is the speed of light in a vacuum?
*299,792,458 meters per second (m/s)*

12. What is the speed of sound in air at room temperature?
*343 meters per second (m/s)*

13. What causes the refraction of light?
*A change in the speed of light as it passes from one medium to another, resulting in a change in direction.*

14. What is the phenomenon where light waves bounce off a surface called?
*Reflection*

15. What is the phenomenon where light waves bend or change direction as they pass through a medium called?
*Refraction*

16. Name the three primary colors of light.
*Red, Green, Blue*

17. What happens to the frequency of sound waves as the pitch increases?
*The frequency of sound waves increases as the pitch increases.*

18. What is the range of human hearing in terms of frequency?
*20 Hz to 20,000 Hz*

19. What is the difference between transparent and opaque materials?
*Transparent materials allow light to pass through, while opaque materials do not allow light to pass through.*

20. What is the relationship between the angle of incidence and the angle of reflection for a light wave?
*The angle of incidence is equal to the angle of reflection.*

To answer your first question, "What is the source of all waves?", the source of all waves is vibration. Waves are created by the back-and-forth movement or oscillation of particles or objects. This vibration can be caused by various sources, such as a vibrating guitar string, a vibrating vocal cord, or an earthquake causing vibrations in the ground.

Moving on to your second question, "In one word, what is it that moves from source to receiver in a wave motion?", the one-word answer is energy. Waves carry energy from the source to the receiver. When a wave is created, it transfers energy through the medium it travels in. This energy can be in the form of sound, light, or other types of waves.

Now, onto your third question, "Does the medium in which a wave travels move with the wave?" The answer is no. While a wave propagates through a medium, the individual particles of the medium simply oscillate back and forth, but they do not move with the wave itself. For example, in the case of an ocean wave, the water particles move up and down, but they do not travel forward with the wave as it moves towards the shore.

Finally, your last question is about the relationship among frequency, wavelength, and wave speed. The relationship is described by the equation wave speed = wavelength * frequency. Wave speed refers to how fast a wave is moving through a medium. Wavelength is the distance between two corresponding points on the wave, such as two peaks or two troughs. Frequency is the number of complete waves passing a certain point in a given time.

The equation shows that if you know the wavelength and frequency of a wave, you can calculate its speed. Similarly, if you know the speed of a wave and its frequency or wavelength, you can calculate the missing parameter. This equation helps in understanding the behavior of waves and their characteristics.