Density & Relative density

Presentation

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Physics

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9th Grade

•

Practice Problem

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Medium

•

NGSS

MS-PS1-4

Standards-aligned

KUWAYNE WAITE

Used 111+ times

FREE Resource

8 Slides • 12 Questions

Density & Relative Density

Open Ended

Why does ice float on water?

Type response here

Open Ended

If both balls in the image is dropped in water, which would float or sink? Give your reason.

Type response here

What is density?

The density of a substance is its mass per unit volume.
The SI unit of density is kg/m³ or kg m^-3
The density of an object will remain the same even if it you change size.

What is relative density?

Relative density is the ratio of the density of a substance to the density of a given reference material (i.e., water).
Relative density has no units since it is a ratio with the same units.

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Open Ended

Based on the information on the website, what are some importance of density?

Type response here

Multiple Choice

Density is define as

the mass per unit area

the mass per unit volume

the ratio of density of a substance to the water.

Multiple Choice

Relative Density is define as

the mass per unit area

the mass per unit volume

the ratio of density of a substance to the density of water.

Multiple Choice

Can the relative density of a substance be zero?

Yes

Multiple Choice

Which is NOT an importance of density?

Building boats

identifying substances

selecting foods

identifying objects

Multiple Choice

Why a slice of bread is squeezed into a ball. Which quantity will not change?

width

volume

density

length

Multiple Choice

Which formula represents the relationship of density?

mass x volume

volume / mass

mass + volume

mass / volume

Multiple Choice

Which formula represents the relationship relative density?

mass of substance / density of water

density of substance / density of water

mass of substance x density of water

density of substance / mass of water

Multiple Choice

What is the SI unit of density?

g/m³

kg/cm³

kg/m³

kg/m²

Multiple Choice

What is the SI unit of relative density?

g/m³

kg/cm³

kg/m³

no units

Density & Relative Density

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