63 Answered Questions for the topic Multiple Choice
Physics: Doubling the intensity of sound (MC)
Doubling the intensity of sound:
a. Doubles the sound level.
b. Increases sound level by factor of √2 .
c. Increases sound level by 3 dB.
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07/07/15
Physics: Two unequal masses of iron both have the same Internal energy, which of the following is true?
Two unequal masses of iron both have the same Internal energy, which of the following is true?
a. The larger mass is hotter
b. The smaller mass is hotter
c. The have the same temperature
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Physics: ideal gas law, pressure
If a contained ideal gas decreases the volume by a factor of two and then triples the temperature, what happens to the pressure?
a. It goes up by a factor of 2
b. It goes up by a factor of...
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07/06/15
Physics: Conceptual question (Multiple Choice)
If one wanted to help insulate their house, by replacing their windows made of the same material, would it be better to have, smaller windows (say let A = ½ original) or thicker glass (say twice...
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06/23/15
Physics: mechanical advantage? (multiple choice)
What is the mechanical advantage of a claw foot hammer having a handle with a length of 45 cm and head length of 10 cm? a. 1/9 b. 2/9 c. 2/5 d. 5/2 e. 9/2 f. 9/1
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06/23/15
Physics: Angular velocity (multiple choice)
At a dilapidated playground, people have stolen the support bar to a merry-go-round leaving a flat disk that can rotate freely. While pondering conservation of angular momentum, a curious physics...
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06/19/15
Physics: Bernoulli’s principle with pressure and velocity (multiple choice)
Driving slowly down a two-lane highway a large transport truck passes me going the same way as I am. As he does physics flashes before my eyes, and I think Bernoulli’s principle with pressure and...
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06/19/15
Physics: Conceptual Question (angular momentum)
At a dilapidated playground, people have stolen the support bar to a merry-go-round leaving a flat disk that can rotate freely. While pondering conservation of angular momentum, a curious physics...
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04/26/15
Geometry word problem please help ASAP
Soda cans are made out of aluminum and are shaped like a cylinder. The formula for the surface area of a cylinder can be used to find the amount of aluminum, in square centimeters, that is needed...
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04/23/15
Identify the roots of...
Idnetify the roots of (x-3)(x+4)=18
A. -5 and 6
B. 3 and -4
C. -3 and 4
D. 5 and -6
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12/11/14
Circle and Triangle Question... (A triangle is inside of a circle)
A circle has a diameter AC of 10 inches. The chord AB is 8 inches long. What is the area of the region outside the triangle but inside the circle? (Triangle ABC is a right triangle.)
Please...
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12/11/14
Triangle Angle of Elevation Problem...
The Sears Tower in Chicago is 1,454 feel tall and is located about 1 mile inland from the shore of Lake Michigan. An observer in a rowboat on the lake measures the angle of elevation to the top of...
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Match the letter of the choice most closely associated with the given term (you will not use all of the choices)
1. discriminant A. -b/(2a)
2. standard form of a quadratic equation B. y=x2
3.minimum C. b2-4ac
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