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1. Intro to Physics Units

Solving Density Problems

1. Intro to Physics Units

Solving Density Problems

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Problems with Mass, Volume, & Density

Problems with Mass, Volume, & Density

Finding the Side Length of a Cube

Finding the Side Length of a Cube

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Density Practice Problems

Density Practice Problems

Density, Mass and Volume Problems Part 2

Density, Mass and Volume Problems Part 2

Density, Mass, and Volume Problems Part 1

Density, Mass, and Volume Problems Part 1

Density problem examples - IGCSE Physics

Density problem examples - IGCSE Physics

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Multiple Choice

A wooden cylinder has a radius of 3.5 cm and a height of 6 cm. If the mass is 161 g, what is the density of the wooden cylinder?

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Multiple Choice

Copper has a density of 8.96 g/cm³. If a single copper atom as a mass of 1.055×10^-25 kg, what is the volume of a copper atom?

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Multiple Choice

You have three objects in front of you. Object A has a volume of

4 {cm}^{3}

, object B has a volume of

7 {cm}^{3}

, and object C has a volume of

10 {cm}^{3}

. They all have the same mass. What is the correct ranking of the objects from most dense to least dense?

Textbook Question

The quantity called mass density is the mass per unit volume of a substance. What are the mass densities in basic SI units of the following objects? a. A 215 cm³ solid with a mass of 0.0179 kg.

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Textbook Question

In the fall of 2002, scientists at Los Alamos National Laboratory determined that the critical mass of neptunium-237 is about 60 kg. The critical mass of a fissionable material is the minimum amount that must be brought together to start a nuclear chain reaction. Neptunium-237 has a density of 19.5 g/cm3. What would be the radius of a sphere of this material that has a critical mass?

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Textbook Question

The nucleus of a uranium atom has a diameter of 1.5×10^−14 m and a mass of 4.0×10^−25 kg . What is the density of the nucleus?

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Textbook Question

A standard baseball has a circumference of approximately 23 cm. If a baseball had the same mass per unit volume (see Tables in Section 1–4) as a neutron or a proton, about what would its mass be?

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Textbook Question

The density of an object is defined as its mass divided by its volume. Suppose a rock's mass and volume are measured to be 6 g and 2.8325 cm³. To the correct number of significant figures, determine the rock's density (mass/volume).

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Textbook Question

A plumb bob (a mass m hanging on a string) is deflected from the vertical by an angle θ due to a massive mountain nearby (Fig. 6–37).

(b) Make a rough estimate of the mass of Mt. Everest, assuming it has the shape of a cone 4000 m high and base of diameter 4000 m. Assume its mass per unit volume is 3000kg per m³.

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Textbook Question

The Near Earth Asteroid Rendezvous (NEAR) spacecraft, after traveling 2.1 billion km, orbited the asteroid Eros with an orbital radius of about 20 km. Eros is roughly 40km x 6km x 6km. Assume Eros has a density (mass/volume) of about 2.3 x 10³ kg/m³ .

(a) If Eros were a sphere with the same mass and density, what would its radius be?

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