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Tuition Singapore A Level Physics Tuition – Measurement Question Solution D Measurement of temperature requires 1 scale reading. Uncertainty of scale reading = ½ of smallest division = 0.5° Decimal place of reading follows d.p. of uncertainty   Please contact Angie @ 96790479 or Mr Ong @ 98639633 if you need tuition A level/JC H2/H1 Physics    

Tuition Singapore A Level Chemistry Tuition – Redox Question In theory, 3 mol of NH3OH+(aq) is required to convert 1 mol of BrO3–(aq) to Br–(aq). Which one of the following statements about this reaction is correct? A      NH3OH+ is acting as an oxidising agent. B      The change in oxidation number of nitrogen is +4. C      N2O is the nitrogen–containing product. D      The reaction is likely to have a high activation energy. Solution Please contact Angie @ 96790479 or Mr Ong if you need tuition in A level/JC H2/H1 Chemistry   

Tuition Singapore Math Tuition – Trigonometry Identities Question Solution Please contact Angie @ 96790479 or Mr Ong if you need tuition in Additional Mathematics

Tuition Singapore Maths Tuition – Ratio Question (a)        A sum of money is divided in the ratio 2:4:5. Given that the difference between the largest share and the smallest share is $72, find the sum of money. (b)       Given that A:B = 1/2 : 1/3  and  B is twice of C. How many times is A bigger than C? Solution Please contact Angie @ 96790470 or Mr Ong 2 98639633 if you need help in Mathematics Secondary 1 to Secondary 4

Tuition Singapore Physics Tuition – Measurement Definitions A physical quantity consists of a numerical magnitude and a unit. The common base quantities are length, time, mass, temperature, electric current and amount of substance. The SI units of the base quantities are called SI base units. The common prefixes include giga, mega, kilo, deci, centi, milli, micro and nano. A scalar quantity has magnitude only, while a vector quantity has both magnitude and direction. Using vernier calipers:            Measured reading = reading on main scale + reading on vernier scale Using micrometer screw gauge:            Measured reading = reading on main scale + reading on thimble scale To avoid parallax error, readings must be taken with the eye directly above the markings. For instruments with ...