Biology; Chemistry; Physics: Post your doubts here!

[Anonymous321]

This is part of Physics Syllabus

-describe experiments to show electrostatic charging by
friction

- describe experiments to show the force on
a beam of charged particles in a magnetic field

how to prepare for thiiis?

 

[princess Anu]

Q when asked for temperature range
is it highest temp - lowest temp
or we just give the range like -10 - 100?

 

[Enferno]

Q when asked for temperature range
is it highest temp - lowest temp
or we just give the range like -10 - 100?

You can give both like -10-110 or 120

 

[ciesgetoveralready]

So Alhamdolillah Im happy with my Bio ATP.
Physics now! Can anybody give physics atp notes please please please?

 

[Ram97]

Ammeter main positive terminal kis taraf hota hai??

Reply please!!!

 

[Awesome12]

http://papers.xtremepapers.com/CIE/Cambridge International O Level/Physics (5054)/5054_s03_qp_4.pdf
Question 2 (a) i?

 

[Ram97]

http://papers.xtremepapers.com/CIE/Cambridge International O Level/Physics (5054)/5054_s03_qp_4.pdf
Question 2 (a) i?

There is a same kind of experiment in the book.
You put a dot where the needle is pointing
Place the compass after that point making sure needle is pointing towards south pole and place a dot
Repeat the steps until its complete and join the dots to show the magnetic field

 

[Awesome12]

There is a same kind of experiment in the book.
You put a dot where the needle is pointing
Place the compass after that point making sure needle is pointing towards south pole and place a dot
Repeat the steps until its complete and join the dots to show the magnetic field

sorry b i

 

[Fate0]

sorry b i

Steel is a hard magnet.

 

[Ram97]

Well I think as the compass is a small magnet so it would magnetise steel and point towards magnetic field of steel as it is a hard magnetic material

 

[Fate0]

Ammeter main positive terminal kis taraf hota hai??

Positive side of batteri ki taraf.

 

[ciesgetoveralready]

Just found these notes for Physics atp. Some of you may have these already but I found them to be really helpful! Do go through these

 

[Ram97]

Positive side of batteri ki taraf. View attachment 41377

Is it the same for voltmeter???

 

[Fate0]

Is it the same for voltmeter???

yup

 

[Ram97]

Thanks!!
http://papers.xtremepapers.com/CIE/Cambridge International O Level/Physics (5054)/5054_s03_qp_4.pdf
q.2 part b(ii)

 

[Awesome12]

Thanks!!
http://papers.xtremepapers.com/CIE/Cambridge International O Level/Physics (5054)/5054_s03_qp_4.pdf
q.2 part b(ii)

By making it smaller, we can obtain more points along the field lines making our experiment more reliable

 

[Awesome12]

Help please
To describe the correct use of a thermometer, a student wrote “The line of sight must be
vertical to the thermometer”.
This is a carelessly-worded description. Rewrite the description, correcting the mistake.
it's supposed to be horizontal right?

It is supposed to be perpendicular

 

[Ram97]

"eye level must be in line to level of mercury in thermometer"
Is it the same thing as eye level must be perpendicular??

 

[Hazel-logy]

It is supposed to be perpendicular

Is it wrong if its horizontal? And thank you
Oh and one more question.
If the boiling water temperature is 103 but the thermometer reads 100...is it because of the steam loss?

 

[ciesgetoveralready]

"eye level must be in line to level of mercury in thermometer"
Is it the same thing as eye level must be perpendicular??

yes perpendicular to the thermometer but if you write in line to level of mercury that would be more accurate.