Physical Science: Motion, Forces, and Energy, Book M

Chapter 3: Forces and Fluids

Standardized Test Practice

1.
A force of 17 N is exerted on an area of 0.20 m2. What is the pressure?
A)85 Pa
B)0.68 Pa
C)3.4 Pa
D)67 Pa
2.
A child throws two balls into water. One ball floats and one sinks. Which of these is correct?
A)The floating ball has a greater density
B)The floating ball has a lower density.
C)The sinking ball has greater volume.
D)The sinking ball has smaller volume.
3.
According to Bernoulli's principle, which of the following happens when the speed of a fluid increases?
A)The force exerted by the fluid decreases.
B)The force exerted by the fluid increases.
C)The pressure exerted by the fluid decreases.
D)The pressure exerted by the fluid increases.
4.
Why is the pressure exerted by the nail large?

<a onClick="window.open('/olcweb/cgi/pluginpop.cgi?it=jpg::::/sites/dl/free/0078617707/161383/662_368_q4.jpg','popWin', 'width=NaN,height=NaN,resizable,scrollbars');" href="#"><img valign="absmiddle" height="16" width="16" border="0" src="/olcweb/styles/shared/linkicons/image.gif"> (2.0K)</a>

A)The nail tip is large.
B)The nail tip is small.
C)The nail has lower density than the wood.
D)The nail has higher density than the wood.
5.
The pressure inside the fluid of a hydraulic system is increased by 875 Pa. What is the increase in the force exerted on a piston that has an area of 0.060 m2?
A)15 N
B)28 N
C)69 N
D)53 N
6.
Which of the following exerts the greatest pressure on the ground?
A)a 35-kg boy standing on one foot
B)a 55-kg boy standing on one foot
C)a 35-kg boy standing on both feet
D)a 55-kg boy standing on both feet
7.
Which of the substances will not float in water?

<a onClick="window.open('/olcweb/cgi/pluginpop.cgi?it=jpg::::/sites/dl/free/0078617707/161383/662_367_q7_q8.jpg','popWin', 'width=NaN,height=NaN,resizable,scrollbars');" href="#"><img valign="absmiddle" height="16" width="16" border="0" src="/olcweb/styles/shared/linkicons/image.gif"> (10.0K)</a>

A)ice and balsa wood
B)ice and lead
C)balsa wood and sugar
D)lead and sugar
8.
Which of the substances has a volume of 18 cm3 if its mass is 28 g?

<a onClick="window.open('/olcweb/cgi/pluginpop.cgi?it=jpg::::/sites/dl/free/0078617707/161383/662_367_q7_q8.jpg','popWin', 'width=NaN,height=NaN,resizable,scrollbars');" href="#"><img valign="absmiddle" height="16" width="16" border="0" src="/olcweb/styles/shared/linkicons/image.gif"> (10.0K)</a>

A)balsa wood
B)ice
C)lead
D)sugar
9.
Which of the following is explained by Pascal's principle?
A)airplane wings lifting into the air
B)a heavy ship floating in water
C)hot air rising in a fireplace
D)a hydraulic system lifting heavy weights
10.
What is the mass of a 11-cm3 strip of copper if its density is 8.9 g/cm3?
A)1.2 g
B)98 g
C)8.1 g
D)42 g
Glencoe Online Learning CenterScience HomeProduct InfoSite MapContact Us

The McGraw-Hill CompaniesGlencoe

Please read our Terms of Use and Privacy Policy before you explore our Web site. To report a technical problem with this Web site, please contact the Web Producer.