Question

Which describes the wavelength of a wave?








A.
the distance from the rest position to the trough







B.
the distance from the crest to the trough







C.
the distance from the crest to the rest position







D.
the distance from one point on a wave to the next similar point

Answer 1

@whisperz

Answer 2

@galaxy_00

Answer 3

@ShailKumar

Answer 4

It is the distance between two points which have same circumstances.

Answer 5

do u mind helping me with more

Answer 6

Which gives the frequency of the wave in terms of its peaks?








A.
the number of peaks per meter







B.
the height of the tallest peaks







C.
the number of peaks passing a point per second







D.
the height of the peaks divided by the width of the crest

Answer 7

@ShailKumar

Answer 8

@madyhughes

Answer 9

which question?

Answer 10

bottom one

Answer 11

The number of peaks passing a point per second is definition of frequency

Answer 12

uh well my calculations say its well nvm he just answered it

Answer 13

Which travels at the greatest speed?








A.
sound through water







B.
sound through air







C.
light through a vacuum







D.
light through glass

Answer 14

light through a vacuum is the ultimate speed.

Answer 15

thank u

Answer 16

Which does not separate white light into the colors of the visible spectrum?









A.
a diamond ring







B.
rods in the retina of the human eye







C.
rain drops in the atmosphere







D.
cones in the retina of the human eye

Answer 17

@ShailKumar

Answer 18

isn't it b

Answer 19

B. rods in the retina of the human eye

Answer 20

Rods are more in number but they are not sensitive to colors

Answer 21

How does the human eye see objects?








A.
Light reflects off objects, enters the eyes, and is detected by the optic nerve in the retina.







B.
Light reflects off objects, enters the eyes, and is detected by light-sensitive cells in the retina.







C.
Light absorbed by objects, enters the eyes, and is refracted by the optic nerve in the retina.







D.
Light refracts off objects, enters the eyes, and is captured as a photograph by the lenses.

Answer 22

isn't it a

Answer 23

@ShailKumar and thanks for the replies ur a lifesaver

Answer 24

I think it should be b.

Answer 25

The photo shows an example of white light entering a prism and coming out as colors of the rainbow.



How does a prism produce the colors of the rainbow from white light?













A.
by changing the wavelength of white light into other wavelengths







B.
by reflecting light with white wavelengths and transmitting light with colored wavelengths







C.
by separating the light of different wavelengths







D.
by absorbing colorless wavelengths from white light

Answer 26

@ShailKumar

Answer 27

C. by separating the light of different wavelengths

Answer 28

This wave diagram represents a high-pitched, loud musical note.



Which describes a wave that represents a lower pitched, softer note when compared to this one?













A.
higher crests with a shorter wavelength







B.
lower crests with a shorter wavelength







C.
higher crests with a longer wavelength







D.
lower crests with a longer wavelength

Answer 29

Lower pitch means longer wavelength and softer note means less amplitude

Answer 30

so d

Answer 31

Yes

Answer 32

Two people stand on opposite sides of a windowless door but cannot see each other.



Which interaction between light and matter explains this?









A.
When light strikes the door from each side, it is absorbed.







B.
When light strikes the door from each side, it is refracted.







C.
When light strikes the door from each side, it is transmitted.







D.
When light strikes the door from each side, it is reflected.

Answer 33

its either c or d right

Answer 34

It should be d.

Answer 35

ok thanks just a couple more I really appreciate this

Answer 36

Which best defines transparent and provides an example of a material that is transparent to light?








A.
the ability to absorb light; for example, a photovoltaic cell







B.
the ability to transmit light; for example, air







C.
the ability to refract light; for example, a prism







D.
the ability to reflect light; for example, a shiny metal object

Answer 37

Medium which allows light to pass through

Answer 38

I think B is right as pass = transmit :P

Answer 39

c