Question

Help im stuck with these problems

Answer 1

Yulia observed a sound wave moving through a solid medium at four different temperatures, and she recorded observations about each one in the chart.


Which correctly ranks, from fastest to slowest, the time it will take one wavelength to pass a certain point?

Wave X → Wave Y → Wave W → Wave Z
Wave Z → Wave W → Wave Y → Wave X
Wave X → Wave W → Wave Y → Wave Z
Wave Z → Wave Y → Wave W → Wave X

Answer 2

Waves move fastest in

low-temperature gases.
low-temperature solids.
high-temperature gases.
high-temperature solids.

Answer 3

A wave will go faster through a liquid at -- temperatures.

Answer 4

Allison wants to calculate the speed of a sound wave.

Which formula should she use?

distance traveled / amplitude
number of wavelengths / amplitude
number of wavelengths / time
distance traveled / time

Answer 5

@JustSaiyan

Answer 6

The first should be "Wave X → Wave W → Wave Y → Wave Z" Warmer temperatures allow waves to move faster.

Answer 7

Thats what i put but its wrong for some reason

Answer 8

Hmm. That is strange.

Answer 9

@Shadow Might be able to provide some insight on this.

Answer 10

ill try again

Answer 11

well its working now.

Answer 12

Waves move fastest in

low-temperature gases.
low-temperature solids.
high-temperature gases.
high-temperature solids.

Answer 13

A wave will go faster through a liquid at -- temperatures.

Answer 14

Allison wants to calculate the speed of a sound wave.

Which formula should she use?

distance traveled / amplitude
number of wavelengths / amplitude
number of wavelengths / time
distance traveled / time

Answer 15

C High temperature gases
The next one is Warm Temperatures,
And the last I think is number of wavelengths / amplitude

Answer 16

\(\color{#0cbb34}{\text{Originally Posted by}}\) @joaquin21
A wave will go faster through a liquid at -- temperatures.
\(\color{#0cbb34}{\text{End of Quote}}\)

Answer 17

\(\color{#0cbb34}{\text{Originally Posted by}}\) @JustSaiyan
C High temperature gases
➡`The next one is Warm Temperatures`⬅,
And the last I think is number of wavelengths / amplitude
\(\color{#0cbb34}{\text{End of Quote}}\)

Answer 18

which types of electromagnetic waves have longer wavelengths than the waves that make up visible light? Check all that apply.

radio waves
gamma rays
microwaves
infrared light
ultraviolet light
X-rays

Answer 19

infrared light
ultraviolet light
X-rays
gamma rays

Answer 20

Which part of the electromagnetic spectrum is nearest to radio waves?

X-rays
microwaves
gamma rays
ultraviolet light

Answer 21

Hmm. I think D.

Answer 22

How can electromagnetic waves be used to fight a forest fire?

Gamma ray images can show hot spots as radioactive areas.
Ultraviolet images can show hot spots as fluorescent areas.
X-ray images can show hot spots as white areas.
Infrared images can show hot spots as red areas.

Answer 23

D

Answer 24

The whole point of infrared is to show heat signatures.

Answer 25

A pet lizard and its shelter must be kept warm. What type of electromagnetic waves would most likely be used?

gamma rays
infrared light
ultraviolet light
microwaves
I think its C but im just making sure

Answer 26

or D

Answer 27

Infrared waves would be correct.

Answer 28

Which types of electromagnetic waves have higher frequencies than the waves that make up ultraviolet light? Check all that apply.

radio waves
infrared light
microwaves
gamma rays
visible light
X-rays

Answer 29

X rays and Gamma rays. The higher frequency would mean shorter wavelengths, and the only wavelengths shorter than Ultraviolet are X rays and Gamma rays.

Answer 30

The part of the electromagnetic spectrum that has the longest wavelengths is

Answer 31

Radio Waves

Answer 32

radio waves
gamma waves
infrared waves
ultraviolet waves
Visible light

Answer 33

Lol. Radio Waves

Answer 34

yea i had to type it out because there was no copy and paste

Answer 35

Which object absorbs the most visible light?

a clear bowl
a white rock
a black t-shirt
a red apple

Answer 36

black tshirt

Answer 37

Yep.

Answer 38

Which is why someone wearing black in the summer would be hotter than someone wearing white in the summer.

Answer 39

Prisms separate_______ light, such as that from the Sun, by wavelength.

Answer 40

white light.

Answer 41

According to Dutch scientist Christiaan Huygens, what was light made of?
atoms
particles
waves
electrons
im 90% sure its waves

Answer 42

Juan created a chart to help him study for a test.



Which headings best complete the chart?

X: Transparent Objects
Y: Opaque Objects
X: Opaque Objects
Y: Transparent Objects
X: High Frequency Waves
Y: Low Frequency Waves
X: Low Frequency Waves
Y: High Frequency Waves

Answer 43

@JustSaiyan lol dont leave

Answer 44

Sorry, someone else needed me for a second.

Answer 45

its alright lol i forgot i was only on sciences subject i thought there was other subjects i didnt see anyone who needed help

Answer 46

The first is waves, second, I would say is X opaque objects.

Answer 47

Isaac Newton believed that light was made of _____
i think maybe particles
.

Answer 48

Tiny Particles, yes.

Answer 49

anymore questions?

Answer 50

The diagram below shows a paper clip in front of a mirror.



Where will the image of the paper clip appear to the observer?

1
2
3
4

Answer 51

i dont understand what its asking lol

Answer 52

So basically if something is in a mirror you just flip it to the other side so the answer would be 3

Answer 53

From where the eye is positioned looking at the paper clip, where will it's reflection lie?

Answer 54

ok thanks :)

Answer 55

Pro tip, it isn't 3

Answer 56

That's what I thought at first.

Answer 57

How does a concave mirror form an image?
It bends the light toward a focal point.
It bends the light away from a focal point.
It bounces the light toward a focal point.
It bounces the light away from a focal point.

Answer 58

really nick its not 3? okay then

Answer 59

C. The last one would be number 2

Answer 60

yea he is right its C

Answer 61

The diagram below shows a light ray from a pencil hitting a mirror.



Which ray shows the correct direction of the reflected ray?

1
2
3
4

Answer 62

Hmm. Tricky.

Answer 63

is it number 2?

Answer 64

That is what I was thinking.

Answer 65

its either 2 or 3

Answer 66

Online classes are poop

Answer 67

but i say its 2

Answer 68

I did not take Earth space science freshman year so i have to take it now

Answer 69

online and its poooooooooooooop

Answer 70

i have that class

Answer 71

You can use the curved part of a spoon as a mirror because it ______ light.

Answer 72

reflects?

Answer 73

yes

Answer 74

👍

Answer 75

How does a convex mirror form an image?

It bends the light toward a focal point.
It bends the light away from a focal point.
It bounces the light toward a focal point.
It bounces the light away from a focal point.

Answer 76

I would say B

Answer 77

Hmm. Well it takes light and it spreads it out in different directions, so I would say that would be B

Answer 78

Yea i think that too

Answer 79

Which describe the image formed by a convex mirror? Check all that apply.

virtual
real
upside down
right-side up
larger than the object
smaller than the object
same size as the object

Answer 80

Which describes an image that a plane mirror can make?

The image is always real.
The image can be either virtual or real.
The image is never right-side up.
The image can only be the same size as the object.

Answer 81

virtual, right-side up, smaller than the object for the first.

Answer 82

I think #2 is D or A

Answer 83

but i might be wrong

Answer 84

I thinks it A

Answer 85

I say D.

Answer 86

hmmmm

Answer 87

pop split decision

Answer 88

Saiyans right its D

Answer 89

I got this question wrong How does a convex mirror form an image?

It bends the light toward a focal point.
It bends the light away from a focal point.
It bounces the light toward a focal point.
It bounces the light away from a focal point.

Answer 90

he normally is right

Answer 91

D. We said B last time.

Answer 92

That is the final question then i gotta take the exam

Answer 93

okay

Answer 94

But im taking it tomorrow cause i gotta go to my next period

Answer 95

thursday**

Answer 96

okay have a good day

Answer 97

u 2 thanks for the help

Answer 98

Yep.

Answer 99

anytime