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A good start for P1 (The solar system and waves)
Flashcards
43 cards
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Practice quiz
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Questions
43
Answers
1
What evidence did he find to back his ideas up?
The layers of rock on both continentswere the same
There's not
Found the same fossils on both continents
There were people with the same surename on both cotinants
2
How can measure the distance of a star from Earth?
Metre stick
Brightness
Parralax
Guess
3
What of these things effects the rate of expansion in universe?
Friction
Temperature
It's expanding?
Mass
4
What do transversal waves do?
Vibrate at 90 degrees to the direction of travel
Vibrate along the same direction as the wave is travelling
5
What happens in nuclear fussion of hydrogen atoms?
4H+Energy->1He+More energy
The atoms combine to form one super hydrogen
Not alot
2H+Energy->Explosion
6
How long ago was the big bang?
12 billion years ago
14 billion years ago
14 million years ago
Yesterday
7
How old is the light from the north star?
430 years(Shakespeare times)
200 years(Victorian times)
1000 years(William the Conquorer)
Brand new
8
When a galaxy moves away from us, it's light wavelength changes the light's redder what is this
The light changeing colour
Blue Shift
Looking through a filter
Red Shift
9
What can form on the boundries?
Deep ridges
Mountains
Volcanos
Destructive plate boundries where the rock is recycled
10
What happens to a wave when it reaches a diiferent layer of the earth?
It gets stopped in it's tracks
Don't know
It gets refracted at 90degrees everytime no matter the layer
It is refected/refracted depending on the layer
11
What do longitudinal waves do?
Vibrate along the same direction as the wave is travelling
Vibrate 90 degrees to the direction of travel
12
What process breaks up the current rocks on the planet?
Erosion
Transportation
Water cycle
Depositation
13
How long does it take light from the sun to get to Earth?
16 minutes
8 minutes
Instantly
24 hours
14
What are possibilities for the end of the universe?
Big freeze
Big Crunch
Run out of matter as it can't be created
Run out energy as it can't be created
15
Why do scientits put telescopes in space?
Reduce light pollution andatmospheric interferajnces
To make jobs
Look cooler
So they're closer to the object
16
This process gives off lots of light+heat energy , this was how our ? was formed
Planet
Gravity
Star
Sun
17
The universe is expanding, what caused this?
Some galaxies don't like each other
The big bang
Red Shift
Don't know
18
What do Eathquakes produce?
Destruction
Surf
Energy
Seismic waves
19
What is a comet?
Rocks that didn't form planets
A ball of rock/ice that orbits the sun differently to us
Light in the sky
A small planet
20
What new evidence is there for continental dift?
There isn't any
Proof that the atlantic ocean gets 2cm wider a year
The mid-atlantic ridge
The magnetic stripes in the continents
21
The cloud contracted under gravity, at it's centre, enough ? formed to start Nuclear fussion
Energy
Light
Matter
Nuclear materials
22
What was the old theroy for how the cotinents used to be?
They didn't move
Land bridges that were covered up by Noah's flood
Don't know
People invented boats
23
The solar system started as a cloud of ? and gas.
Hydrogen
Planets
Dust
Rocks
24
What is a wave?
A transfer of enegy(not matter)
A transfer of matter
25
Which galaxy are we part of?
The mars bar
The caburys chocolate buttons
Sirius
The milky way
26
P waves can travel through solids and liquids and are...
Longitudinal
Transversal
27
What is the process that forms rocks?
Rock Cycle
Don't know
Water cycle
GOD
28
What's the inner layer of the Earth called?
Outer Core
Mantle
Inner Core
Crust
29
Why do we only see comets for a very short part of their orbit?
They orbit on a differnt plane to us
They melt else
Too small to see
They don't orbit?
30
What's it made of?
Iron and nickel
Copper and steel
Water and Plants
Lava
31
The plates 'float' on the mantle
False
True
32
What evidence is there for rocks constantly being recycled?
ANimals
Moutains
Fossils
Somebody made it up
33
All waves have..
Speed
Amplitude
Frequency
Wavelength
34
Why wasn't his theroy accepted at first?
There was no proof the plates were moving
He didn't have anyone to support him
He didn't come from a well known background
He was a meteorologist
35
What is light pollution?
Light adding CO2 to the atomsphre
Light given off by buildings etc that make the sky bright
36
S waves transverse through the core and can...
Only travel through solids
Through liquids and solids
37
What units are used measure wavelength?
Amplitude(amps)
They're not
Frequency(Hertz/HZ)
Energy(Joules)
38
Is this equasion true?
True
False
39
What sort of orbits do the planets have?
Eliptical
Rectangular
Triangular
Sphferical
40
The less distant the galaxy, the faster it moves away
False
True
41
What did Wegener think about America and Africa?
He didn't
They're on oppersite sides of the planet
They weren't a nice place to visit
He saw that fitted together like a jigsaw
42
The crust is made up of ?
Techtonic plates
Sea's and Land
43
The sun is approximatly how much bigger then Earth?
1 thousand million
100 million
250
100
