Download study Heat tr and density SG 2013 14

Name ____________________________________ class:
Due Date:
Quiz date:
Study Guide to Quiz: Density and Heat Transfer
Use your “Heat Transfer” sheets, density problems sheet, and lava lamp essay sheet for
help if needed to complete this.
1. Calculate the density of a liquid that has a mass of 25g and a volume of 35 ml. Round
your answer to one place beyond the decimal (to the tenths place). Be sure your units are
correct! Show formula and math work for credit.
Density = ___________
2. Calculate the density of an unknown solid that has a mass of 50g and displaces a
volume of water in a graduated cylinder to a volume of 40 ml. Round your answer to one
place beyond the decimal (tenths place). Be sure your units are correct! Show the
formula and math work for credit.
Density = __________ Will this solid sink or float in water at 20 degrees C? _________
Why? __________________________________________________________________.
3. For all substances, liquids are more/less dense than gases? ___________
4. For all substances, except water, solids are more/less dense than liquids? ___________
5. Explain why water as a solid (ice or snow) is less dense than liquid water. Be thorough
and use complete sentences for any credit.
________________________________________________________________________
________________________________________________________________________
________________________________________________________________________
________________________________________________________________________
Turn over for more >>>>
6. The sun’s heat energy is transferred by way of __________________________.
7. Heat is transferred to the bottom of your feet touching hot beach sand by way of
______________________.
8. Hot air blowing from a vent heats and dries your wet sneakers by way of
______________________.
9. Conduction works best with what kinds of substances in what state of matter?
10. Heat moves from __________________substances to ________________ ones.
11. The average motion of molecules is called ____________________________.
12. In a paragraph of well written complete sentences, describe how a convection
current is created in a lava lamp. Be sure to include density and temperature and speed
of molecules in your thorough answer.