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Evan Toh
Nov 41 min read
Copper spheres P and Q, P has larger volume. What quantity is the same? 2020PP01q7
This question is very straight forward. As both P and Q are copper, the density will be the same. But many are unsure of KE. Let look at...
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Evan Toh
Nov 20 min read
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Evan Toh
Jan 11 min read
Units conversion involving prefixes
Prefixes are used to simplify the writing of very big or very small numbers. For instance, instead of having to write 12 500 000 m every...
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Evan Toh
Dec 31, 20231 min read
Unusual Behaviour of Less Dense Balloon in Air or Water
Answer: Option A Of course if a heavy ball is suspended from the car we all know the ball will move in opposite direction of a...
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Evan Toh
Nov 30, 20230 min read
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Evan Toh
Nov 30, 20231 min read
Density (Units Conversion) and Floatation
Density is the mass per unit volume . Common units for density are g/cm3 or kg/m3 . SI unit is kg/m3 . Density of a pure substance is...
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