Science waves Flashcards

1
Q

why is there no sound in space?

A

there is no matter for the sound to travel though.

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2
Q

what is a series of 0 and 1’s used in computer language

A

binary

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3
Q

how do you shatter glass?

A

frequency+pitch

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4
Q

which travels faster light wave or sound wave?

A

light wave

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5
Q

what is happening when light slows down?

A

Refraction

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6
Q

when the wave enters the medium what happens to the wave?

A

it bends

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7
Q

why do soundwaves travel faster than though a solid

A

there are more particles to bounce off of.

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8
Q

constructive interference occurs when…

A

2 waves meet and create a larger amplitude

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9
Q

destrucrtive enterference occurs when…

A

2 waves meet and create a smaller amplitude

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10
Q

what is deffraction

A

when an object causes a wave to change direction and bend around it.

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11
Q

what is absorpation

A

when a wave strikes an object and absorbs the energy.

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12
Q

what does an invisbility cloak dowith light waves.

A

the light waves bounce, bend, mix and move around.

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13
Q

what do light wvaes do when they enter a prism?

A

Bend

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14
Q

red waves travel…

A

longest

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15
Q

vilot waves travel…

A

shortest

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16
Q

why do red waves travel longest and vilot travel shortest

A

because red wavelengths are greater and violet wavelengths are lesser.

17
Q

When wavelengths increases frequency….

18
Q

When frequency increases amplitude….

19
Q

energy increases becuase the speed and ampliude…

20
Q

what is the unit for freuency?

A

Hz (hertz)

21
Q

list 5 objects to asord sound in a room

A

all objects that are soft, or furry

22
Q

list the 4 types of seismic waves

A

p,s,l,r (people sweat lots regularly)

23
Q

P waves move…

A

side to side

24
Q

p waves pass through

A

solids liquids and gasses

25
which wave moves at 10000
L
26
how do L waves move the crust
up and down
27
which wave moves in a elleptical pattern
R waves
28
Which waves are the most destructive
R waves and L waves
29
Where does s waves stop?
the earths core
30
where does a p wave stop
NOO, a p wave can travel through all layers of the earth
31
L waves move across what
the surface
32
formula for wave speed
frequency* wavelength
33
where is the crest
on the highest point of the wave
34
where is the trough
the lowest point of the wave
35
where is wavelegth
from crest to crest or trough to trough
36
where is aplitude
from resting pt to crest or trough
37
what do humans hear at
20,000 hz
38
what do dogs hear at
45,000 hz