Science With Acquah – Ask Steve (Episode 3)
Why are there waves on the sea? Why do trains lean on one side? This and many more questions..... www.sciencewithacquah.com
More details | Watch nowCentripetal force – how do we measure it?
A short video showing a simple classroom method of checking the way in which this force is related to mass, speed and radius.
More details | Watch nowGoing round in circles – how do we do it?
A presentation showing both the ideas about centripetal force and a simple classroom method of checking the way in which this force is related to mass, speed and radius.
More details | Watch nowMeasuring the speed of pulses
A short clip showing the experimental measurement of the speed of electrical pulses in a cable - a large fraction of the speed of light.
More details | Watch nowMeasuring the speed of sound
A presentation showing how to measure the speed of sound over a short distance on a laboratory table.
More details | Watch nowMeasuring the speed of sound – experimental details
A short clip showing the measurement of the speed of sound over short distances.
More details | Watch nowChemical Equations – and how we construct them
An introduction into the writing down of fully balanced chemical equations. The process is explained starting with word equations, finding all the relevant formulas and then working with some useful rules for finding the correct coefficients in the b....
More details | Watch nowOxidation Numbers and Equations
The concept of oxidation and reduction is explained and generalised using oxidation numbers with ionic and covalent examples. Several equations are balanced, using the oxidation number method to fix various atomic ratios.
More details | Watch nowAll about conic sections
This is a fully interactive program allowing many useful ways of investigating conic sections both visually and algebraically. It comes with a full set of explanatory notes for both teacher and pupil.
More details | Watch nowCrater Formation in Sand
A description and demonstration of the way in which craters formed by dropping objects into sand can be linked to some elementary physics
More details | Watch nowEstimation – Educated Guesswork?
How can we make sensible estimates of very large numbers? It is often very important to know the size of an unknown number, at least to within a factor of ten.
More details | Watch nowSquare Roots 2
All numbers are not equal
An introduction to the various types of numbers which are recognised as important.
More details | Watch nowFractions 2
An approach to adding and subtracting fractions, using an understanding of the processes involved.
More details | Watch nowFractions 1
How can we represent fractions in the simplest way? Equivalence of decimal and common fractions.
More details | Watch nowPercentages
Making life easy when using percentages. A sometimes fraught topic looked at differently.
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