p7 revision

further revision on p7 topics

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How can you convert K to degrees
Minus 273
1 of 10
what is absolute zero?
-273 C
2 of 10
At the beginning of nuclear fusion what is stopping the nuclei from fusing?
electrical repulsive force
3 of 10
What is nuclear fusion?
When two positive nuclei are forced together by heat and pressure and are held together by a strong attractive force.
4 of 10
What increases pressure in a container?
higher temperature and smaller volume
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What happens in the core of a star?
Most fusion takes place in the core because it is the hottest part and nuclei are close enough to fuse.
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What happens in the convective zone of a star?
This is where convective currents transfer energy to the surface of the star
7 of 10
What are the four main zones of a star?
Core, Photosphere, Convective zone and Radioactive zone.
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What happens in the radioactive zone of a star?
This is where photons of radiation are transferred to surface of star.
9 of 10
What is one of Hubble's discoveries?
That galaxies that are far away from us move faster, we can see them redshifted
10 of 10

Other cards in this set

Card 2

Front

what is absolute zero?

Back

-273 C

Card 3

Front

At the beginning of nuclear fusion what is stopping the nuclei from fusing?

Back

Preview of the front of card 3

Card 4

Front

What is nuclear fusion?

Back

Preview of the front of card 4

Card 5

Front

What increases pressure in a container?

Back

Preview of the front of card 5
View more cards

Comments

Amy Chod

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Urm... absolute zero is both -273C and 0K.. am i missing something there?

absolute zero

sophie

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euhmm if the answer isnt 0K is it -273? confused! :)

shajida_96

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The answer is -273

Lucy

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absolute zero question confused me but other than that good quiz :))

Jaspal

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The answer is both 0K and -273C. The question just didn't specify whether the answer was supposed to be in degrees Celsius or Kelvin...

Serena Baker

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hi jaspal

Serena Baker

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oxox

wisia

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absolute zero is both -273C and 0K

Matt Cory

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apart from question 1 which has two answers, it is good

Ellie

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Jaspal wrote:

The answer is both 0K and -273C. The question just didn't specify whether the answer was supposed to be in degrees Celsius or Kelvin...

 That is a very good point, however, I think they were assuming that the reader would associate question 2 with question 1, so were assuming you would answer with -273C

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