Use Average Density in an Ideal Floating Model - Practice 2

For a freely moving object in a uniform liquid, ignoring surface tension and attachments, an average density below the liquid allows floating.

All worksheets

5 questions0m 0s

Learn the skill

For a freely moving object in a uniform liquid, ignoring surface tension and attachments, an average density below the liquid allows floating. A greater density leads to sinking. Equal densities give neutral buoyancy in this ideal model.

Worked example

An object of average density 0.8 g/cm^3 can float in a 1.0 g/cm^3 liquid. A hollow object uses its overall mass and displaced volume.

Would you believe it?

Atoms with the same proton count but different neutron counts are isotopes of the same element. Changing a neutron does not automatically make a new element.

Question 1 Ideal case 6: object average density 9/10 g/cm^3; liquid density 12/10 g/cm^3. No attachments or surface-tension effects. What will the freely moving object tend to do? have neutral buoyancy float sink

Question 2 Ideal case 7: object average density 15/10 g/cm^3; liquid density 12/10 g/cm^3. No attachments or surface-tension effects. What will the freely moving object tend to do? sink float have neutral buoyancy

Question 3 Ideal case 8: object average density 12/10 g/cm^3; liquid density 12/10 g/cm^3. No attachments or surface-tension effects. What will the freely moving object tend to do? float sink have neutral buoyancy

Question 4 Ideal case 9: object average density 4/10 g/cm^3; liquid density 8/10 g/cm^3. No attachments or surface-tension effects. What will the freely moving object tend to do? have neutral buoyancy float sink

Question 5 Ideal case 10: object average density 10/10 g/cm^3; liquid density 8/10 g/cm^3. No attachments or surface-tension effects. What will the freely moving object tend to do? sink float have neutral buoyancy

Review your work

0correct

Complete the questions to review each answer.

View dashboard