Physical Science: Matter and Energy
Name:_________________________________ Date:____________________ Score:_________
Quiz 7: Section 4.1
_______________________________________________________________________________
SHORT ANSWER: Write the correct answer in the blank.
1) ____________________ What is the SI unit of pressure?
2) ____________________ Which state of matter is practically unaffected by attractive forces
between molecules?
3) ____________________ What is a device that uses a confined liquid to multiply force?
4) ____________________ What is the name of the curved surface that forms where a liquid
touches the sides of a container?
MODIFIED TRUE/FALSE: If the statement is true, write true in the blank. If it is false, replace the
underlined word(s) with the word(s) that will make the statement true.
5) ____________________ The attractive force that holds molecules of different substances
together is cohesion.
6) ____________________ The two factors that affect gravitational pressure are the density and
mass of the liquid.
7) ____________________ The principle stating that the pressure applied to an enclosed
container is distributed equally throughout the container is Maxwell's principle.
8) ____________________ The phenomenon in which liquids in a thin tube rise above or fall
beneath their own levels is call capillarity.
9) ____________________ The idea that all molecules are in constant motion and move at a
speed determined by temperature is the dynamic theory of matter.
PROBLEMS: Solve the problem; write the answer in the blank using proper significant digits and
units.
10) ____________________ A liquid weighing 184 N is placed in a container whose bottom has an
area of 0.20m2 . What is the pressure on the bottom of the container?
Physical Science: Matter and Energy