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What are the differences in writing an SAQ and an LAQ?

For an SAQ (Short-Answer-Question) the best thing is to be as concise as possible, as you are aiming for a word count of about 250-300 words. What the examiners want is to be reading accurate information ...

Answered by Valerie T. • Spanish tutor

22727 Views

How do I use the conservation of linear momentum to solve problems?

The linear momentum of a particle is defined as the product between the particle’s velocity (a vector) and the particle’s mass (a scalar quantity):
p=m·v.
The l...

Answered by Ellis C. • Physics tutor

3057 Views

How does refraction work?

The fastest light can travel is when it is in a vacuum, where it travels at 3x10^8 metres per second.

However, when light travels through another substance or material (anothe...

Answered by Conor P. • Physics tutor

11113 Views

How do I use equations of motion ('suvat') to find a missing quantity?

First, be familiar with the equations of motion:s = displacementu = initial velocityv = final velocitya = acceleration (constant)t = time
v = u + ats = ((u+v)t)/2s = ut + (at^2)/2v^2 = u^2 + 2as

Answered by Jessica H. • Physics tutor

3604 Views

why does applying the brakes of a car cause the temperature of the breaks to increase?

The increase in heat is caused by friction between the brakes and the wheels. This work done between the brakes and the wheels, causes a decrease in kinetic energy ...

Answered by Hugo H. • Physics tutor

14128 Views