The difference between the pressures inside and outside a tire is called __________.
Fill in the blank(s) with correct word
[Ques. 2] A device that measures absolute air pressure is called a __________.
Fill in the blank(s) with correct word
[Ques. 3] The nucleus of an atom contains
a. protons c. electrons
b. neutrons d. all of the above
[Ques. 4] Normal atmospheric pressure is
a. 14.7 psi
b. 1 N/m2
c. zero
d. 760 mm of mercury
e. 101,000 pascals
f. none of the above
[Ques. 5] When a 4 cubic ft block of wood floats in a fluid whose weight density is 60 pounds per cubic foot, 3/4 of the block's volume is submerged. The buoyant force on the block is
a. 60 lbs
b. 120 lbs
c. 180 lbs
d. 240 lbs
e. none of the above
[Ques. 6] A tire pressure gauge reads 30 psi when the atmospheric pressure is 14 psi. The net force on 2 square inches of the tire is
a. 28 lbs
b. 32 lbs
c. 60 lbs
d. 88 lbs
e. none of these
[Ques. 7] A person weighing 200 pounds stands on snowshoes. If the area of each snowshoe is 400 square inches, the pressure on the snow is
a. 0.25 psi
b. 0.5 psi
c. 2 psi
d. 4 psi
e. none of the above
[Ques. 8] The pressure on your left palm is ____________ the pressure on your right palm.
a. 1/4
b. 1/2
c. equal to
d. 2 times
e. 4 times
[Ques. 9] The force on your left palm is __________ the force on your right palm.
a. 1/4
b. 1/2
c. equal to
d. 2 times
e. 4 times
[Ques. 10] When people get into a small boat it settles lower in the water and
a. the buoyant force increases as a result of more water being displaced
b. the net force on the boat again becomes zero
c. the pressure on the bottom of the boat becomes greater because it is deeper in the water
d. all of the above
Quick Reply
