Umar S. A Level Maths tutor, A Level Physics tutor, GCSE Maths tutor,...

Umar S.

Currently unavailable: for regular students

Degree: Physics (Masters) - University College London University

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About me

Me

I am a student of Physics at University College London, a world leader in Physics and higher education.  The course is mostly based around Mathematics so I have a thorough understanding of GCSE and A-Level Mathematics as well as the Physics equivalents, (I wouldn't dare teach Further Maths though, few are brave enough). Aside from this I love football and dabble in alot of other sports and am a lover of music of many genres.

My Philosophy

I find that the main problem students have with grasping Maths and Sciences is simply that they have not been taught or have not learnt the basics to a sufficient standard. Both disciplines almost completely rely on heirarchical learning where students must know one thing in order to learn the next, if the foundations are weak the house will never be strong.

The Lessons

I plan to dedicate a portion of the lesson (varying according to the students needs) to filling in the gaps in their knowledge to ensure they can learn new material more thoroughly and far more easily. Another portion in consolidating and reinforcing what they are learning in class at that time, and a few minutes helping them with questions they may have had problems with.

You may be wondering why you should take my word for why I think students struggle or whether my format of lesson time will work, I am an eldest child of four, so as you can imagine I spent more of my time helping my siblings with their work than doing my own, I also casually tutored family friends in Maths to bring them up to speed for GCSE. Most importantly though having been tutored by four different tutors myself, I have recognised which have helped me the most and what qualities and habits they shared.

I hope to teach you soon!

Thanks,

Umar

Subjects offered

SubjectLevelMy prices
Maths A Level £20 /hr
Physics A Level £20 /hr
Maths GCSE £18 /hr
Physics GCSE £18 /hr

Qualifications

QualificationLevelGrade
MathsA-LevelA*
PhysicsA-LevelA
ChemistryA-LevelA
Further MathsA-LevelB
Disclosure and Barring Service

CRB/DBS Standard

No

CRB/DBS Enhanced

No

Currently unavailable: for regular students

Questions Umar has answered

Describe the photoelectric effect.

If we give a peice of gold negative charge and shine long wave, low frequency, electro-magnetic (E-M) radiation on it (for example radio waves) absolutely nothing will happen. If you start to shorten the wavelength and therefore increase the frequency of the E-M radiation a point will come wh...

If we give a peice of gold negative charge and shine long wave, low frequency, electro-magnetic (E-M) radiation on it (for example radio waves) absolutely nothing will happen.

If you start to shorten the wavelength and therefore increase the frequency of the E-M radiation a point will come where the gold will discharge.  This is called the threshold frequency.

This occurs because the raditation is causing negatively charged electrons to leave the gold thereby discharging it.

Let me explain, E-M radiation can manifest itself in the form of particles of light called photons, each photon is a discrete packet of energy. The energy of the photon is directly proportional to the frequency of the radiation according to the equation:

E = hf

where E is energy of the photon, f is frequency and h is a constant.

When the E-M radiation is shone onto the gold, the photons collide with the electrons in the metal and transfer their energy to the electrons. When the frequency of the wave is above the threshold frequency, the photons contain enough energy that when they collide with the electrons, the electron has enough energy to escape the attraction of the gold's nucleus leaving the gold without its negative charge. The energy barrier the electron must overcome to leave the gold is called the potential well.

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1 year ago

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