Physics P1 - 17th January 2013 (GCSE)

And
The size of the red-shift is not the same for all galaxies.
What information can scientists find out about a galaxy when they measure the size of
the red-shift the galaxy produces?
...............................................................................................................................

Further away galaxies show a greater red shift than closer ones meaning that the further away galaxies are moving faster away from the earth than nearer ones

And
The size of the red-shift is not the same for all galaxies.
What information can scientists find out about a galaxy when they measure the size of
the red-shift the galaxy produces?
...............................................................................................................................

Btw I've started a thread for the. B1 exam in June if your taking it you can find it here http://www.thestudentroom.co.uk/showthread.php?t=2319751

Btw I've started a thread for the. B1 exam in June if your taking it you can find it here http://www.thestudentroom.co.uk/showthread.php?t=2319751

Particles in a solid vibrate around fixed positions and are very close to each other whereas particles in a gas move around rapidly. In a gas the binds between the particles are very weak so it can fill up any space whereas in a solid the binds between the particles are very strong so its volume is fixed.

i must admit I completely ****ed up on this question as I wrote something out then crossed it out and then I looked at the clock and realised I hadmlikema minute left so I just gave up and closed my paper I felt like such a failure afterwards because I knew the answer but the pressure just got to me!

Last few:
A few more sorry...

Electricity is distributed from power stations to consumers along the National Grid.
The voltage across the overhead cables of the National Grid needs to be much higher
than the output voltage from the power station generators.
Explain why.




According to kinetic theory, all matter is made up of small particles. The
particles are
constantly moving.
Diagram 1 shows how the particles may be arranged in a solid.

7 (a) One kilogram of a gas has a much larger volume than one kilogram of a solid.
Use kinetic theory to explain why.

Yeah but you still got A* so don't kill yourself over it

THANK YOU SOOOOOOOOOOOOOOOOOOOOOOOOOOO MUCH!!

Last one though

Electricity is distributed from power stations to consumers along the National Grid.
The voltage across the overhead cables of the National Grid needs to be much higher
than the output voltage from the power station generators.
Explain why.

particles in a solid vibrate around fixed positions and are very close to each other whereas particles in a gas move around rapidly. In a gas the binds between the particles are very weak so it can fill up any space whereas in a solid the binds between the particles are very strong so its volume is fixed.


I must admit i completely ****ed up on this question as i wrote something out then crossed it out and then i looked at the clock and realised i hadmlikema minute left so i just gave up and closed my paper i felt like such a failure afterwards because i knew the answer but the pressure just got to me!


. The reason it's higher would be that it decreases the current which therefore reduces energy losses in the cables which therefore improves the efficient of the whole distribution system !

I really shouldn't be thinking about gcse physics at this time of day YOLO....

hi
i was just wondering can anyone upload the p1 jan 2013 higher paper with the mark scheme please?
thanks

thank you.. I was not sure if anyone had it