Hlp pwezz 1.What does it mean for a wave to be reflected?
2.What happens to a wave when the energy is absorbed?
3.Give an example of a sound wave being transmitted.
4.What is the difference between a high amplitude and a low amplitude of sound waves?
5.Why do you see the green color on a leaf?
6.How is the frequency of a wave measured?
7.What two properties of a light wave make color?
Lastly.8 What is the relationship between the pitch and frequency of a sound wave?

1. Reflection, abrupt change in the direction of propagation of a wave that strikes the boundary between different mediums. At least part of the oncoming wave disturbance remains in the same medium. Regular reflection, which follows a simple law, occurs at plane boundaries.

Explanation:

2. When waves are absorbed by a surface, the energy of the wave is transferred to the particles in the surface. This will usually increase the internal energy of the particles. When white light shines on an opaque object, some wavelengths or colours of light are absorbed. These wavelengths are not detected by our eyes.

3. For example, when you flick the rim of a glass, the glass will vibrate imperceptibly. These vibrations move through the air and strike the ear drum of anyone within hearing range (click here to find out 'How Our Ears Hear'). In fact, these vibrations, or sound waves, can move through any medium: gas, liquid or solid.

4. What is the difference between sounds with high and low amplitude? High amplitude sound waves are taller than low amplitude. This gives them more energy and a louder sound. ... S waves are more powerful and damaging than P waves.

5. So, plants and their leaves look green because the “special pair” of chlorophyll molecules uses the red end of the visible light spectrum to power reactions inside each cell. The unused green light is reflected from the leaf and we see that light.

6. Wave frequency can be measured by counting the number of crests (high points) of waves that pass the fixed point in 1 second or some other time period. ... The SI unit for wave frequency is the hertz (Hz), where 1 hertz equals 1 wave passing a fixed point in 1 second.

7. The reason that different waves of light appear to be different colors of light is because the color of a light wave depends on its wavelength. For example, the wavelength of blue light is about 450 nanometers, while the wavelength of red light is about 700 nanometers.

8. The sensation of a frequency is commonly referred to as the pitch of a sound. A high pitch sound corresponds to a high frequency sound wave and a low pitch sound corresponds to a low frequency sound wave.

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