Buoyancy

Measurements

100

What is the Density of water?

1 gram per milliliter

200

At what Density does an object sink in water?

Above 1 gram per milliliter

300

At what density does an object float in water?

Less than 1 gram per milliliter

400

What units do we use to measure Density?

Grams per milliliter, g/mL and Grams per Cubic Centimeter, g/cm³

500

Buoyant Force is measured in what?

Newtons

Formulas

100

What is the formula for Density?

Density = Mass / Volume

200

What is the formula for Volume?

Volume = Mass / Density

300

What is the formula for Mass?

Mass = Density x Volume

400

How can you calculate the volume of a quadrilateral? (Rectangular Prism or Cube)

Volume = Length x Width x Height

500

How can you find the volume of an irregular object?

Vo = Vf - Vi

Definitions

100

What is the definition of Density?

The measurement of how much mass a substance contains within a given volume. The compactness of a substance.

200

What is the definition of Volume?

The amount of space an object takes up.

300

The apparent loss of weight of a substance is

Buoyancy

400

The downward force of gravity acting on mass is

weight

500

What is the definition of Buoyant Force?

The upward force exerted on an object submerged in fluid.

Calculations

100

Calculated the density of an object with a mass of 24 g and a volume of 6 mL.

4 g/mL

200

Calculate the mass of an object with a density of 3.4 g/cm³ and a volume of 15 cm³

51 g

300

Calculate the volume of an object with a mass of 130 g and a density of 5.5 g/mL

24 mL

400

Calculate the density of an object with a mass of 30 g. When the object was placed in water the water rose from 10 mL to 13 mL.

10 g/mL

500

Calculate the density of an object with a length of 10 cm, a width of 2 cm, a height of 8 cm, and a mass of 500 g.

3 g/cm³

Random

100

A box is floating in the pool, the weight of the box is 30 N. What is the buoyant force on the box?

30 N

200

What is Archimedes’ Principle?

The buoyant force acting on an object equals the weight of the fluid displaced.

300

How does a hot air balloon float in air?

When the temperature inside the balloon rises, the gas expands and becomes less dense than the surrounding air.

400

Wat two measurements are needed to calculate density?

mass and volume

500

A 5 cm cube is underwater, calculate the mass of the water displaced.

125 g