I need help with the waves unit test (unit 4 lesson 15). If anyone knows the answers or has already done it please put them here.
1.The image moves behind the curved mirror
2.Light bends due to the difference in the speed of light in air and glass.
3.Light waves do not require a medium to propagate.
4.The frequency of blue light is greater than that of yellow light, while the speeds of both colors of light are the same.
5.wavelength of the stationary source: 11.25 ft; perceived wavelength: 9.25 ft
6.standing waves
7.the vertical distance from the crest or trough of a wave to the equilibrium
8.0.2 seconds
9.The speed of sound increases as the density of water increases.
10.The speed decreases by 25% because speed and wavelength are directly proportional.
11.The wavelength of the wave increases
12.The frequency remains constant.
13.λA=1/3λB
14.1s and 0s
15.Some film methods allow you to print a picture from anywhere without electricity.
16.Results can be quickly and accurately counted and shared.
OK there has been over 70 views, on of you has to know the answers😑
1000 views no way none of you have the answers
SPILL THE ANSWERS
omg we need help
Please help I'm stuck
yall take forever i need answers
900 people saw this and didnt drop nothin LMAO
here are the last ones that u have to write for
17 - The picture illustrates the reflecting behavior of light, where the image of the mountain and the trees is reflected onto the water.
18 - The relationship between harmonics and resonance frequency in a piano is the harmonic is a higher frequency while the resonance is the frequency of which string vibrates the most when hit.
19 - The wavelength of the wave in the string is much shorter than the wavelength of the wave in the air. The frequency of the wave in the string is much higher than the frequency of the wave in the air.
20 -
Advantage - Online software is cheap and easier, it can also be accessed from anywhere.
Disadvantage - Online software would be easier to steal your ideas, also it would not likely have as many features that you could incorporate into maybe a drawing.
these have not been graded yet, i did not write them myself but i fdid change the writing, please change the wording so u dont get caught, ill come back after it has been graded if i dont forgoet abt it