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Describe, using words, an equation, *and* a graph for each, the following gas laws: (i) Boyle's Law (ii) Charles' Law (iii) The Pressure Law

(i) At constant temperature, the pressure and volume V of a gas are inversely proportionalpV = constant; ...

Answered by Calem C. Physics tutor
1923 Views

Describe the basic principles of ultrasound imaging (2 marks)

Ultrasound is any frequency above that of human hearing - around 20 kilohertz.

Ultrasound imaging works by emitting a known intensity of ultrasound at a speci...

Answered by Alex G. Physics tutor
2358 Views

Describe how the velocity and forces acting on a skydiver change during their fall (6 marks)

Different exam boards may want a different format of answer, so before beginning this question, it would be worth thinking how other six mark questions are marked in other papers.

Edexcel wan...

Answered by Jethro R. Physics tutor
12197 Views

How does a hydraulic jack work and how do I work out the pressures involved?

(Draw hydraulic jack diagram using Pen tool) Firstly, we need the quation for pressure. Pressure is measured in Nm^2 which tells us that P=F/A. Where P is the pressure, F is the force in Newtons and A is ...

Answered by Max Z. Physics tutor
4769 Views

What is the difference between a vector and a scalar?

A vector is a measurement of something that has more than 1 number associated with it, for example velocity. I can tell you how fast a car is going using the magnitude of velocity, speed, and I can tell y...

Answered by Max Z. Physics tutor
3925 Views

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