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A2.2 - Mass, Density and Time

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✅EvaluateQuestion 1 of 22

Which instrument is used to measure mass accurately in a school laboratory?

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✅EvaluateQuestion 2 of 22

What is the SI unit of mass?

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✅EvaluateQuestion 3 of 22

Density is best defined as

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✅EvaluateQuestion 4 of 22

Which unit is commonly used for density in the laboratory?

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✅EvaluateQuestion 5 of 22

Which quantity is measured in seconds (s)?

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✅EvaluateQuestion 6 of 22

The period of a pendulum is the time taken for

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✅EvaluateQuestion 7 of 22

Which object is most likely to float on water?

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✅EvaluateQuestion 8 of 22

A block has a mass of 500 g and a volume of 250 cm³. What is its density?

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✅EvaluateQuestion 9 of 22

Which method is best for finding the density of a small irregular stone?

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✅EvaluateQuestion 10 of 22

Why are standard masses used with a beam balance?

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✅EvaluateQuestion 11 of 22

A student measures the time for 20 pendulum swings instead of one. Why?

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✅EvaluateQuestion 12 of 22

Which quantity must be known to calculate density?

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✅EvaluateQuestion 13 of 22

Which unit is equal to 0.001 g?

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✅EvaluateQuestion 14 of 22

A liquid has a mass of 600 g and a volume of 500 cm³. Its density is

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✅EvaluateQuestion 15 of 22

Two solids have equal volumes but different masses. Which statement is correct?

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✅EvaluateQuestion 16 of 22

A pendulum bob is replaced with a heavier one of the same size. What happens to the period?

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✅EvaluateQuestion 17 of 22

A student forgets to subtract the mass of the empty container when finding liquid density. What happens?

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✅EvaluateQuestion 18 of 22

Which change would increase the period of a simple pendulum?

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✅EvaluateQuestion 19 of 22

A solid sinks in water but floats in seawater. This means

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✅EvaluateQuestion 20 of 22

Which set of measurements would give the most reliable density value?

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✅EvaluateQuestion 21 of 22

A student measures mass correctly but overestimates volume. What happens to density?

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✅EvaluateQuestion 22 of 22

A solid has a mass of 300 g and a density of 1.5 g cm⁻³. What is its volume?

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✅EvaluateQuestion 1 of 22

Which instrument is used to measure mass accurately in a school laboratory?

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