Thursday 28 April 2022

Timed Multiple Questions Test for A Level Physics - mechanics

Multiple Choice Questions - A Level Physics and Mechanics - Time: 40 minutes Created and Programmed by Vivax Solutions Start the Quiz Submit Quiz

Sunday 24 April 2022

Challenging questions for in friction - for physics and mechanics: A Level and IB

Challenging questions for in friction - for physics and mechanics: A Level and IB
1) If the section of the rope that hangs down is about to move on the table, find and expression for x in terms of the coefficient of friction and the length of the rope. 2) The mass of a book is 2kg and is pressed against a wall by a horizontal force to stop it from sliding down. Find the minimum val…

Saturday 16 April 2022

Modelling with Differentiation for A Level Maths and Physics

Modelling with Differentiation for A Level Maths and Physics
The motion of an object under gravity can easily be modelled by differentiation. Suppose the motion of a stone is given by the formula, y = 16t - 4t 2 , where y and t are displacement and time respectively.  y = 16t - 4t 2 dy/dt = 16 - 8t When the stone reaches the highest point, dy/dt = 0 16 - 8t = 0 8t = …

Tuesday 12 April 2022

The dot product of two vectors: for A Level Further Maths

The dot product of two vectors: for A Level  Further Maths
The dot product or scaler product of two vectors, a and b, is defined as follows: a.b = |a| |b| cos θ Since |a|, |b| and cos t are scalers, the dot product is a scaler. The dot product of unit vectors i.i = |i| |i| cos 0 = 1 X 1 X 1 = 1 i.j = |i| |j| cos 90 = 1 X 1 X 0 = 0 j.j = |j| |j| cos 0 = 1 X 1 X 1…

Saturday 9 April 2022

Simple Harmonic Motion of a liquid inside a U Tube

Simple Harmonic Motion of a liquid inside a U Tube
The above shows how a column of liquid of density ρ can be made to oscillate while undergoing SHM, simple harmonic motion. When you blow gently into the tube at one end, the excess weight of the column of height, x, pushes the rest of the liquid down with a force that results in an downward accelera…

Friday 8 April 2022

Challenging questions for A Level Physics

Challenging questions for A Level Physics
These are some challenging questions that may potentially appear in  the forthcoming A Level  physics examination : 1) Two masses of 10kg each, are attached to a spring balance that is  calibrated in kg .  What is the reading of the spring balance, m,  if the system is in balance? 2) A boat of length 5m is…

Sunday 3 April 2022

Chromatic Aberration

Chromatic Aberration
When light hits a lens, the components of the light refract through different angles, owing to their unique wavelengths.  The blue light, for instance, refracts more than the red light; the wave length of the former is smaller than that of the latter. Due to chromatic aberration, the image formed by …