AQA Physics PHYA4 - Thursday 11th June 2015 [Exam Discussion Thread]

Original post by a.a.k

Well...its life

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I'm on my 3rd repeat for the AQA ones :biggrin:

Reply 2841

Original post by Paul Dirac

I'm on my 3rd repeat for the AQA ones :biggrin:

3rd repeat?? 3rd resit u mean??

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Reply 2842

Original post by gcsestuff

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It's in the text book. And then this is an example questions

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Part C

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That's how I thought you did it but it's not

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Original post by gcsestuff

Have you done the old syllabus questions ??

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Omg no, where can i get them? That would be great

Reply 2843

gcsestuff

Physics and maths tutor has them in topic order and tom red has all the papers. Just google them :smile:

Reply 2844

Sorry forgot to answer your question gcsemaths. Basically what you did is assume that there are 3 forces: the weight, the centripetal force, and the tension force. No no no. The centripetal force is a result of a particular situation where something is moving in circular motion, and the forces that are acting in that situation are said to act as a centripetal force. E.g. if a charged particle moved in a circle through a magnetic field, the magnetic force is said to be acting as a centripetal force. In the string/mass example, we see that the tension and weight combine together to give the centripetal force. THEY ARE CAUSING THE CENTRIPETAL FORCE.

Sorry, this is really hard to explain, but I hope it makes sense.

Reply 2845

Original post by a.a.k

3rd repeat?? 3rd resit u mean??

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Third time going through the past papers. Went through all of them in easter holiday then again a few weeks ago and now I'm doing them for the third time.

Reply 2846

Original post by Paul Dirac

Third time going through the past papers. Went through all of them in easter holiday then again a few weeks ago and now I'm doing them for the third time.

Whaaaaaaat i havent even done them once

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Reply 2847

Original post by a.a.k

Whaaaaaaat i havent even done them once

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Wow screwed much?

Just kidding lol

Reply 2848

K I'm off, see you guys

Reply 2849

Original post by Paul Dirac

Sorry forgot to answer your question gcsemaths. Basically what you did is assume that there are 3 forces: the weight, the centripetal force, and the tension force. No no no. The centripetal force is a result of a particular situation where something is moving in circular motion, and the forces that are acting in that situation are said to act as a centripetal force. E.g. if a charged particle moved in a circle through a magnetic field, the magnetic force is said to be acting as a centripetal force. In the string/mass example, we see that the tension and weight combine together to give the centripetal force. THEY ARE CAUSING THE CENTRIPETAL FORCE.

Sorry, this is really hard to explain, but I hope it makes sense.

This is how think it is
Tension is acting opposit of centp force becuase centrip force eant object to go in where as tension resists itand pulls it outwards.
Without tension string would break
Edit i think ur r right so certrip force is like resultant force in a circke of anything

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(edited 8 years ago)

Reply 2850

Original post by Paul Dirac

Wow screwed much?

Just kidding lol

Nah bruh i got it covered

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Reply 2851

OP

I love how this forum blows up when I'm asleep then when I'm awake it's dead :biggrin:

Reply 2852

Absent Agent

21

Original post by CD223

I love how this forum blows up when I'm asleep then when I'm awake it's dead :biggrin:

The thread is probably asleep when you are awake lol

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Reply 2853

OP

Original post by Mehrdad jafari

The thread is probably asleep when you are awake lol

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Haha! Leaving PHYA4 revision until Tuesday now :s-smilie:

Reply 2854

Absent Agent

21

Original post by CD223

Haha! Leaving PHYA4 revision until Tuesday now :s-smilie:

You should man. I'm I've got one chemistry exam before it so i try to finish physics today

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Reply 2855

OP

Original post by Mehrdad jafari

You should man. I'm I've got one chemistry exam before it so i try to finish physics today

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I've got history tomorrow then maths Tuesday so I should leave PHYA4 for a bit

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Reply 2856

Haza100

1

Original post by gcsestuff

It's in the text book. And then this is an example questions

ImageUploadedByStudent Room1433633852.497406.jpg

Part C

That's how I thought you did it but it's not

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Reply 2857

OP