Year 10 Physics - Topic Density

If an object has a density greater than the density of water, it will:

• A. Float

• B. Sink

• C. Remain Suspended

• D. Change Shape

When an object is submerged in a fluid and displaces a volume of fluid equal to its own volume, it experiences:

• A. Weightlessness

• B. Buoyancy

• C. Compression

• D. Expansion

A ship is designed to float on water because:

• A. It has a low density than water

• B. It has a high density than water

• C. It is made of metal

• D. It is large in size

Use the information given, Calculate the mass of the ball.

• A. 0.4g

• B. 2.5g

• C. 4.0g

• D. 6.4g

Which objects have the same density?

• A. X,Y and Z

• B. X and Y only

• C. X and Z Only

• D. Y and Z only

Which spheres sink in a liquid of density 0.9g/cm^3.

• A. P, Q and R

• B. Q, R and S

• C. R and S only

• D. S only

What is the density of the metal from which the ball is made?

• A. 0.20 g/cm^3

• B. 1.4 g/cm^3

• C. 2.0 g/cm^3

• D. 5.0 g/cm^3

What is the formula for density?

• A. Density = Mass × Volume

• B. Density = Weight × Volume

• C. Density = Mass ÷ Volume

• D. Density = Volume ÷ Mass

Which of the following is a unit of density?

• A. cm^3/g

• B. g/cm^2

• C. g/cm^3

• D. Kg/m^2

Which objects will float in the liquid?

• A. 1 Only

• B. 1 and 2 Only

• C. 1,2 and 3

• D. 3 and 4 Only