+
Related Flashcards
Related Topics
Cards In This Set
| Front | Back |
|
A container is filled with water and the pressure at the container bottom is P. If the container is instead filled with oil having specific gravity 0.80, what new bottom pressure results?
|
A: a pressure
|
|
A container is filled with water and the pressure at the bottom of the container is P. Then the container is emptied halfway and topped off with oil of density 0.80 x 10^3 kg/m^3, which floats on top of the water. What is the pressure at the bottom of the container now?
|
A: a pressure
|
|
At a pressure of 1 atmosphere a column of mercury in a barometer is supported to the height h = 0.76 m. The density of mercury is 13.6 x 10^3 kg/m^3 . A barometer of similar design filled with water would support a column of water how high at a pressure of 1 atmosphere?
|
A: more than ten times h
|
|
When an artery gets a constricted region due to plaque, how does the pressure in this region compare to the pressure in an unconstricted region adjacent?
|
C: In the constricted region the blood moves at a higher speed than in the unconctricted region resulting in a decreased pressure.
|
|
An ice cube with a small solid steel sphere frozen inside floats in a glass of water filled to the brim. What happens to the level of water in the glass as a result of the ice melting?
|
C: It goes down
|
|
Which state of matter is associated with the very highest of temperatures?
|
B: Plasma
|
|
A copper wire of length 2.0 m, cross sectional area 7.1 × 10−6 m2 and Young’s modulus 11 × 1010 N/m2 has a 200-kg load hung on it. What is its increase in length? (g = 9.8 m/s2)
|
D: 5.0 mm
|
|
In an elastic solid there is a direct proportionality between strain and:
|
D: Stress
|
|
The quantity “stress” expressed in terms of the fundamental quantities (mass, length, time) is equivalent to:
|
B: ML-1T-2
|
|
The quantity “strain” expressed in terms of the fundamental quantities (mass, length, time) is equivalent to:
|
D: a dimensionless quantity
|
|
The bulk modulus of a material, as a meaningful physical property, is applicable to which of the following?
|
D: solids, liquids and gases
|
|
A uniform pressure of 7.0 × 105 N/m2 is applied to all six sides of a copper cube. What is the percentage change in volume of the cube? (for copper, B = 14 × 1010 N/m2)
|
D: 0.5 x 10-3%
|
|
Bar One has a Young’s modulus that is bigger than that of Bar Two. This indicates Bar One:
|
D: is made of material that is different from Bar Two.
|
|
Consider two steel rods, A and B. B has three times the area and twice the length of A, so Young’s modulus for B will be what factor times Young’s modulus for A?
|
D: 1.0
|
|
A tire stops a car by use of friction. What modulus should we use to calculate the stress and strain on the tire?
|
C: shear modulus
|
