Pupil outcome: I can represent a change story using addition and subtraction symbols. Key learning points: - A change can be positive or negative. - A change can be represented by a negative number.

Polarizability (Part 1/2)

Physical Differentials (2 of 2): Coulombic Transformations

Here I derive the work done by a spring once stretched/ compressed. I also define EE = 0.5 k X^2

Here I pool the results of all the previous videos together to get a fascinating result - the conservation of Mechanical Energy

Here I derive the work done due to gravity and also define GPE = mgh

Jun.14 -- Bill Heinecke, chairman and chief executive officer at Minor International, discusses Thailand’s economy, tourism, growth for his business in the second half of the year, where he’s looking for growth and his outlook for his...

Supporters of Nigeria's former breakaway state marked the 50th anniversary of the declaration of Biafra on Tuesday with a protest renewing calls for sovereignty.The self-proclaimed Republic of Biafra only existed for three years, from 30...