Gr 8 Natural Sciences Ch 2: Density, mass and volume

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What is the formula to calculate density?

D = V - m

D = m × V

D = V/m

D = m/V (correct)

What does a dense material have in a given volume?

A high mass (correct)

A low mass

A high volume

A low density

What is the unit of measurement for density in the example given?

cm²/g

g/cm³ (correct)

cm³/g

g/cm²

What is the purpose of the activity 'Comparing Densities'?

To compare different materials that have the same volume but different densities Signup and view all the answers

What is measured first in the procedure to compare densities?

The volume of each cube Signup and view all the answers

What can be observed about the material with the highest mass for the same volume?

It has the highest density Signup and view all the answers

What is the unit of measurement for mass that is equal to 1000 milligrams?

Gram Signup and view all the answers

What is the physical quantity that is a measure of the amount of space an object occupies?

Volume Signup and view all the answers

What is the unit of measurement for volume that is equal to 1000 milliliters?

Liter Signup and view all the answers

What is the term that describes how tightly packed the particles in a material are?

Density Signup and view all the answers

What is the ratio of mass to volume?

Density Signup and view all the answers

What is the unit of measurement for mass that is equal to 1000 grams?

Kilogram Signup and view all the answers

What is the physical quantity that is a measure of the amount of matter in an object?

Mass Signup and view all the answers

What is the unit of measurement for volume that is equal to 1 milliliter?

Cubic Centimeter Signup and view all the answers

What is the difference between a dense material and a less dense material?

Dense material has a higher mass in a given volume, while less dense material has a lower mass Signup and view all the answers

What is the purpose of measuring the volume and mass of each cube in the 'Comparing Densities' activity?

To calculate the density of each cube Signup and view all the answers

Why does a dense piece of cake feel heavy for its size?

Because it has a higher mass in a given volume Signup and view all the answers

What can be concluded about two materials that have the same volume but different masses?

The material with the higher mass has a higher density Signup and view all the answers

Why does a sponge feel light for its size?

Because it is less dense Signup and view all the answers

What is the result of dividing the mass of an object by its volume?

The density of the object Signup and view all the answers

What is the term used to describe a property of a material or system that can be measured?

Physical Quantity Signup and view all the answers

A measuring cup has a volume of 250 mL. What is the equivalent volume in cubic centimeters?

250 cm³ Signup and view all the answers

Which of the following is NOT a unit of measurement for mass?

Liter (L) Signup and view all the answers

What is the main difference between mass and volume?

Mass is a measure of the amount of matter, while volume is a measure of the amount of space occupied Signup and view all the answers

Which of the following is an example of a material with a high density?

A gold bar Signup and view all the answers

What is the relationship between the units of measurement for mass and volume?

1 gram (g) is equal to 1 milliliter (mL) Signup and view all the answers

What is the purpose of understanding the concepts of mass, volume, and density?

To describe and measure the properties of different materials accurately Signup and view all the answers

Which of the following is a characteristic of a material with a low density?

It has a low mass per unit volume Signup and view all the answers

What is the primary reason for calculating the density of different materials?

To understand their 'heaviness' properties Signup and view all the answers

In the 'Comparing Densities' activity, what is the purpose of measuring the mass and volume of each cube?

To determine their density Signup and view all the answers

Why do materials with different densities have different 'heaviness' properties?

Because they have different masses for the same volume Signup and view all the answers

What can be concluded about two materials with the same volume but different masses?

They have different densities Signup and view all the answers

Why does a dense material feel heavier than a less dense material of the same volume?

Because it has a higher mass for the same volume Signup and view all the answers

What is the advantage of calculating density when comparing different materials?

It helps us understand their 'heaviness' properties Signup and view all the answers

What is the primary difference between measuring mass and measuring volume?

The physical quantity being measured Signup and view all the answers

Which of the following statements is true about density?

It is a ratio of mass to volume. Signup and view all the answers

What is the purpose of understanding the concepts of mass, volume, and density?

To measure the physical properties of an object accurately. Signup and view all the answers

What is the relationship between the units of measurement for mass and volume?

The units of measurement are distinct and unrelated. Signup and view all the answers

Which of the following is an example of a material with a high mass per unit volume?

A cube of lead. Signup and view all the answers

What is the result of multiplying the length, width, and height of an object?

The volume of the object. Signup and view all the answers

What is the characteristic of a material with a low density?

It has a low mass per unit volume. Signup and view all the answers

What is the term used to describe a property of a material or system that can be measured?

Physical quantity. Signup and view all the answers

What is the main reason why a dense material feels heavier than a less dense material of the same volume?

Because it has a higher mass per unit volume Signup and view all the answers

What is the purpose of measuring the volume of each cube in the 'Comparing Densities' activity?

To calculate the density of each cube Signup and view all the answers

What can be concluded about two materials that have different densities but the same volume?

They have different masses Signup and view all the answers

What is the advantage of calculating the density of different materials?

It helps to compare their 'heaviness' properties Signup and view all the answers

What is the result of dividing the mass of an object by its volume?

The density of the object Signup and view all the answers

Gr 8 Natural Sciences Ch 2: Density, mass and volume

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Questions and Answers

What is the formula to calculate density?

What does a dense material have in a given volume?

What is the unit of measurement for density in the example given?

What is the purpose of the activity 'Comparing Densities'?

What is measured first in the procedure to compare densities?

What can be observed about the material with the highest mass for the same volume?

What is the unit of measurement for mass that is equal to 1000 milligrams?

What is the physical quantity that is a measure of the amount of space an object occupies?

What is the unit of measurement for volume that is equal to 1000 milliliters?

What is the term that describes how tightly packed the particles in a material are?

What is the ratio of mass to volume?

What is the unit of measurement for mass that is equal to 1000 grams?

What is the physical quantity that is a measure of the amount of matter in an object?

What is the unit of measurement for volume that is equal to 1 milliliter?

What is the difference between a dense material and a less dense material?

What is the purpose of measuring the volume and mass of each cube in the 'Comparing Densities' activity?

Why does a dense piece of cake feel heavy for its size?

What can be concluded about two materials that have the same volume but different masses?

Why does a sponge feel light for its size?

What is the result of dividing the mass of an object by its volume?

What is the term used to describe a property of a material or system that can be measured?

A measuring cup has a volume of 250 mL. What is the equivalent volume in cubic centimeters?

Which of the following is NOT a unit of measurement for mass?

What is the main difference between mass and volume?

Which of the following is an example of a material with a high density?

What is the relationship between the units of measurement for mass and volume?

What is the purpose of understanding the concepts of mass, volume, and density?

Which of the following is a characteristic of a material with a low density?

What is the primary reason for calculating the density of different materials?

In the 'Comparing Densities' activity, what is the purpose of measuring the mass and volume of each cube?

Why do materials with different densities have different 'heaviness' properties?

What can be concluded about two materials with the same volume but different masses?

Why does a dense material feel heavier than a less dense material of the same volume?

What is the advantage of calculating density when comparing different materials?

What is the primary difference between measuring mass and measuring volume?

Which of the following statements is true about density?

What is the purpose of understanding the concepts of mass, volume, and density?

What is the relationship between the units of measurement for mass and volume?

Which of the following is an example of a material with a high mass per unit volume?

What is the result of multiplying the length, width, and height of an object?

What is the characteristic of a material with a low density?

What is the term used to describe a property of a material or system that can be measured?

What is the main reason why a dense material feels heavier than a less dense material of the same volume?

What is the purpose of measuring the volume of each cube in the 'Comparing Densities' activity?

What can be concluded about two materials that have different densities but the same volume?

What is the advantage of calculating the density of different materials?

What is the result of dividing the mass of an object by its volume?

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