Density, Sinking & Floating Quiz

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Density and buoyancy basics

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Ajitha munvartheen

India

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Density, Sinking & Floating Quiz


Density, Sinking & Floating QuizVersion en ligne Density and buoyancy basics par Ajitha munvartheen 1 What is the formula for density? a Density = mass × volume b Density = weight ÷ gravity c Density = volume ÷ mass d Density = mass ÷ volume 2 Which object is most likely to float in water? a A wood block with low density b A metal coin c A dense plastic ball d A rock 3 If an object sinks, what can you change to make it float? a Decrease its mass only b Decrease its density or increase its volume c Decrease its temperature d Increase its temperature only 4 Which statement is true about density and sinking? a Objects denser than water tend to sink b Objects less dense than water sink c All objects float in air d Density doesn’t affect sinking 5 Why does a ship, made of metal, float? a Its overall density is less than water due to hollow shape and air b Water pushes ships up c Metal is not dense d Ships are held up by magic 6 Which material would most likely float in freshwater? a Palsa wood b Lead c Glass marble d Pure iron 7 What happens to density when you increase mass but keep volume the same? a Density decreases b Density stays the same c Density increases d Density becomes zero 8 Why does a helium balloon rise in air? a Air has lower density than helium b Balloon is lighter than air c Helium has lower density than air d Helium is denser than air 9 Which object has a higher density? a A cork b A plastic straw c A empty water bottle d A full water bottle Feedback 1 Density is mass per unit volume. Mass and volume are the two factors; weight is related but not the formula. 2 Less dense objects float more easily in water than high-density ones. 3 Buoyancy depends on density relative to water; changing density or volume affects floatation. 4 Water’s density is a reference; denser objects usually sink in water. 5 Ships use buoyancy from trapped air and structure; overall density can be less than water. 6 Wood generally has lower density than water, unlike metals or glass. 7 Density depends on mass per volume; more mass in same space raises density. 8 Helium’s lower density makes it buoyant in air. 9 A full water bottle has more mass in similar volume, increasing density.

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Density, Sinking & Floating Quiz

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À propos de cette activité

Créé par

Téléchargez la version pour jouer sur papier

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Density, Sinking & Floating QuizVersion en ligne

par Ajitha munvartheen

What is the formula for density?

Which object is most likely to float in water?

If an object sinks, what can you change to make it float?

Which statement is true about density and sinking?

Why does a ship, made of metal, float?

Which material would most likely float in freshwater?

What happens to density when you increase mass but keep volume the same?

Why does a helium balloon rise in air?

Which object has a higher density?

Feedback