**Description :** Of the following, which has units of "Pascal". w) force x) volume y) pressure z) viscosity

**Last Answer :** ANSWER: Y -- PRESSURE

**Description :** N. second/m2 is (A) The S.I. unit of dynamic viscosity (B) The S.I. unit of kinematic viscosity (C) Equivalent to one poise (D) Equivalent to one stoke

**Last Answer :** (A) The S.I. unit of dynamic viscosity

**Description :** One poise (unit of absolute/dynamic viscosity) is equivalent to one (A) gm/cm2 . sec (B) gm/cm. sec (C) cm2 /sec (D) m2 /sec

**Last Answer :** (B) gm/cm. sec

**Description :** Poise is the unit of (A) Surface tension (B) Capillarity (C) Viscosity (D) Shear stress in fluids

**Last Answer :** Answer: Option C

**Description :** Which of the following is the unit of kinematic viscosity? (A) Pascal (B) Poise (C) Stoke (D) Faraday

**Last Answer :** Answer: Option C

**Description :** The unit of dynamic viscosity in S.I. units is (A) N-m/s2 (B) N-s/m2 (C) Poise (D) Stoke

**Last Answer :** Answer: Option B

**Description :** The unit of mass in the English system of measure is which of the following? w) pound x) gram y) slug z) dyne

**Last Answer :** ANSWER: Y -- SLUG

**Description :** A dash pot consists of a cylinder 10 cm in diameter in which slides a piston 12 cm long having a radial clearance of 1 mm. The cylinder is filled with oil having a viscosity of 1 poise. What will be the resistance offered ... with a velocity of 3 cm/sec a.1090 kg b.100 kg c.10900 kg d.10 kg e.50 kg

**Last Answer :** c. 10900 kg

**Description :** A particle A of diameter 10 microns settles in an oil of specific gravity 0.9 and viscosity 10 poise under Stoke's law. A particle B with diameter 20microns settling in the same oil will have a settling velocity (A) ... ) One fourth as that of A (C) Twice as that of A (D) Four times as that of A

**Last Answer :** (B) One fourth as that of A

**Description :** If the specific gravity of a soil particle of 0.05 cm diameter is 2.67, its terminal velocity while settling in distilled water of viscosity, 0.01 poise, is (A) 0.2200 cm/sec (B) 0.2225 cm/sec (C) 0.2250 cm/sec (D) 0.2275 cm/sec

**Last Answer :** (D) 0.2275 cm/sec

**Description :** The kinematic viscosity (in stoke) and the absolute/dynamic viscosity (in poise) are the same for __________ at room temperature. (A) Air (B) Water (C) Mercury (D) Alcohol

**Last Answer :** (B) Water

**Description :** The kinematic viscosity of an oil (in stokes) whose specific gravity is 0.95 and viscosity 0.011 poise, is (A) 0.0116 stoke (B) 0.116 stoke (C) 0.0611 stoke (D) 0.611 stoke

**Last Answer :** Answer: Option A

**Description :** The viscosity of water at 20°C is (A) One stoke (B) One centistoke (C) One poise (D) One centipoise

**Last Answer :** Answer: Option D

**Description :** All systems of measurement use the same units for which of the following? w) mass x) time y) force z) volume

**Last Answer :** ANSWER: X -- TIME

**Description :** Which of the following liquid types would have th highest viscosity? w) low molecular mass-polar liquid x) high molecular mass-polar liquid y) low molecular mass-nonpolar liquid d high molecular mass-nonpolar liquid

**Last Answer :** ANSWER: X -- HIGH MOLECULAR MASS-POLAR LIQUID

**Description :** The non-relativistic mass of an object w) must be the same as its weight x) depends on where you measure it y) does not change with increasing velocity z) is greatest at the poles

**Last Answer :** ANSWER: Y -- DOES NOT CHANGE WITH INCREASING VELOCITY

**Description :** Which of the following is NOT an SI unit of measure? w) watt x) newton y) joule z) erg e) second

**Last Answer :** ANSWER: Z -- ERG

**Description :** The force responsible for drops of liquid assuming a spherical shape is known as: w) strong nuclear force x) Van der Waals attraction y) surface tension z) osmotic pressure

**Last Answer :** ANSWER: Y -- SURFACE TENSION

**Description :** A thermocouple is used to measure w) pressure x) current y) strain z) temperature

**Last Answer :** ANSWER: Z -- TEMPERATURE

**Description :** If the resultant force acting on a body of constant mass is zero, the body's acceleration is: w) increasing x) decreasing y) always zero z) negative.

**Last Answer :** ANSWER: Y -- ALWAYS ZERO

**Description :** Two bodies each have a mass 'M'. If the mass of each body is doubled, the force of attraction between the two bodies is: w) twice the original force x) 1/4 the original force y) 4 times the original force z) unchanged

**Last Answer :** ANSWER: Y -- 4 TIMES THE ORIGINAL FORCE

**Description :** Which of the following pair are vector quantities? w) time and space x) force and momentum y) energy and time z) momentum and mass e) mass

**Last Answer :** ANSWER: X -- FORCE and MOMENTUM

**Description :** If the distance between the centers of mass of two bodies is doubled, the gravitational force between the bodies will become what portion of the original force: w) double x) one half y) remain the same z) one quarter

**Last Answer :** ANSWER: Z -- ONE QUARTER

**Description :** Newton's second law states that the net force acting on a body is equal to the body's time rate of change of: w) acceleration x) mass y) momentum z) inertia

**Last Answer :** ANSWER: Y -- MOMENTUM

**Description :** Which of the following statements dealing with simple harmonic motion of a mass-spring system is TRUE? w) The acceleration is largest when the oscillating mass is instantaneously at rest. x) The ... of the motion. z) The acceleration is larger when the oscillating mass has its greatest velocity.

**Last Answer :** ANSWER: W -- THE ACCELERATION IS LARGEST WHEN THE OSCILLATING MASS IS INSTANTANEOUSLY AT REST

**Description :** When a 2 kilogram mass is suspended from a spring, the spring stretches 4 cm. The force constant of the spring is approximately:+ w) .5 newtons per meter x) 5 newtons per meter y) 50 newtons per meter z) 500 newtons per meter

**Last Answer :** ANSWER: Z -- 500 NEWTONS PER METER

**Description :** A train locomotive whose mass is 1 x 106 kilograms is traveling EAST at a speed of 100 kilometers per hour. A NORTHERLY wind is applying a force of 100 Newtons on the locomotive. How much work is the wind doing ... 10 meters it travels? w) 0 joules x) 1,000 joules y) 10,000 joules z) 100,000 joules

**Last Answer :** ANSWER: W -- 0 JOULES

**Description :** A spring with a force constant of 100 Newtons per meter is loaded with a mass of 1.0 kilogram. The period of vibration of this system is: w) .03 seconds x) .06 seconds y) .31 seconds z) .63 seconds

**Last Answer :** ANSWER: Z -- .63 SECONDS

**Description :** A car is moving along a straight horizontal road at a speed of 20 meters per second. The brakes are applied and a constant force of 5000 Newtons decelerates the car to a stop in 10 seconds. The mass of the car is: w) 1250 kilograms x) 2500 kilograms y) 5000 kilograms z) 10,000 kilograms

**Last Answer :** ANSWER: X -- 2500 KILOGRAMS

**Description :** Two steel balls are at a distance S from one another. As the mass of ONE of the balls is doubled, the gravitational force of attraction between them is: w) quartered x) halved y) doubled z) quadrupled

**Last Answer :** ANSWER: Y -- DOUBLED

**Description :** The time needed for a net force of 10 newtons to change the velocity of a 5 kilograms mass by 3 meters/second is: w) 1.5 seconds x) 6 seconds y) 16.7 seconds z) 150 seconds

**Last Answer :** ANSWER: W -- 1.5 SECONDS

**Description :** A 10 kilogram mass rests on a horizontal frictionless surface. A horizontal force of 5 Newtons is applied to the mass. After the force has been applied for 1 second, the velocity of the mass is: w) 0 meters per second x) 0.5 meters per second y) 5 meters per second z) 50 meters per second

**Last Answer :** ANSWER: X -- 0.5 METERS PER SECOND

**Description :** If the resultant force acting on a body of constant mass is zero, the body's momentum is: w) increasing x) decreasing y) always zero z) constant

**Last Answer :** ANSWER: Z -- CONSTANT

**Description :** If the distance between two objects, each of mass 'M', is tripled, the force of attraction between the two objects is: w) 1/2 the original force x) 1/3 the original force y) 1/9 the original force z) unchanged

**Last Answer :** ANSWER: Y -- 1/9 THE ORIGINAL FORCE

**Description :** Which of the following terms refer to the amount of heat needed to raise the temperature of a unit mass of a substance through one degree? w) Heat of fusion x) Liquification heat y) Internal heat z) Specific heat

**Last Answer :** ANSWER: Z -- SPECIFIC HEAT

**Description :** The term "laminar flow" is most often associated with the description of: w) conduction of sound by waves x) current flow in transistors y) effects of viscosity of liquids z) passage of light rays through a liquid

**Last Answer :** ANSWER: Y -- EFFECTS OF VISCOSITY OF LIQUIDS

**Description :** Which of the following would you measure using a calorimeter? w) specific heat x) weight y) specific gravity z) density

**Last Answer :** ANSWER: W -- SPECIFIC HEAT

**Description :** Ethylene diamine tetraacetoacetate (pron: te-tra-a-see-tow-AS-e-tate) (EDTW) is often used for which of the following: w) Determine hardness of water x) Measure the amount of zinc in a solution. y) A preservative in foods z) All of the above

**Last Answer :** ANSWER: Z -- ALL OF THE ABOVE

**Description :** What is the standard unit of measure for viscosity?

**Last Answer :** ANSWER: POISE (ACCEPT PASCAL-SECONDS)

**Description :** The temperature of a gas is held constant while its volume is reduced. The pressure the gas exerts on the walls of its container increases because its molecules: w) strike the container walls more ... walls with higher speeds y) strike the container walls with greater force z) all of the above

**Last Answer :** ANSWER: W -- STRIKE THE CONTAINER WALLS MORE OFTEN

**Description :** Pressure is equal to: w) Area divided by force x) force divided by area y) area times force z) area minus force

**Last Answer :** ANSWER: X -- FORCE DIVIDED BY AREA

**Description :** If two different gases have the same volume, temperature, and pressure and behave like ideal gases, they will also be identical in which one of the following ways? w) average molecular velocity x) total mass y) total molecular kinetic energy z) average momentum per molecule

**Last Answer :** ANSWER: Y -- TOTAL MOLECULAR KINETIC ENERGY

**Description :** What is the SI unit for pressure? w) Torr x) pounds per square inch y) Pascal z) Kelvin

**Last Answer :** ANSWER: Y -- PASCAL

**Description :** What is the SI unit of pressure? w) Pascal x) Torr y) Dyne z) Kelvin

**Last Answer :** ANSWER: W -- PASCAL

**Description :** The SI unit of pressure is the: w) Torr x) dyne per centimeter squared y) atmosphere z) pascal

**Last Answer :** ANSWER: Z -- PASCAL

**Description :** Which of the following is the same for both radioactive iodine and stable iodine? w) number of neutrons x) mass number y) half-life z) chemical properties

**Last Answer :** ANSWER: Z -- CHEMICAL PROPERTIES

**Description :** Endothermic refers to a process that w) does work x) gives off heat y) loses mass z) absorbs heat

**Last Answer :** ANSWER: Z -- ABSORBS HEAT

**Description :** Gamma rays are similar to X rays in which of the following ways? w) they have neither rest mass nor charge x) they can be bent in an electric field y) they originate within the nucleus z) they are of low energy

**Last Answer :** ANSWER: W -- HAVE NEITHER REST MASS NOR CHARGE

**Description :** The percent composition by mass of copper in anhydrous cupric sulfate is about: w) 10% x) 25% y) 40% z) 75%

**Last Answer :** ANSWER: C -- 40%

**Description :** What two primary factors determine whether or no molecular collision leads to a chemical reaction? w) energy and volume of molecules x) energy and mass of molecules y) energy and orientation of molecules z) orientation and volume of molecules

**Last Answer :** ANSWER: Y -- ENERGY AND ORIENTATION OF MOLECULES