Help
Options
Didn't know it?
click below
click below
Knew it?
click below
click below
Don't Know
Remaining cards (0)
Know
retry
shuffle
restart
0:00
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
ME - Physics 2
ME[M1-2] - Physics 2 / GED0083
| Question | Answer |
|---|---|
| The two dams are identical with the exception that the water reservoir behind dam A extends twice the horizontal distance behind it as that of dam B. Which one of the following statements regarding these dams is correct? | The horizontal distance of the water behind the two dams does not determine the force on them. |
| As a balloon rises in the air its volume increases, at the end it acquires a stable height and cannot rise any further. | True |
| How can relatively denser object be made to float on the less dense fluid? | By altering the shape. |
| Suppose you are capable of carrying a weight of 400 N (about 90 lb). What size cube of gold could you carry? The density of gold is 19,300 kg/m^3. | 13 cm |
| A 15.0-kg solid gold statue is raised from the sea bottom. What is the tension in the hoisting cable (assumed massless) when the statue is at rest and completely underwater? | 139.16 N |
| A plastic sphere floats in water with 50.0% of its volume submerged. This same sphere floats in glycerin with 40.0% of its volume submerged. Determine the density of the sphere. | 500 kg/m³ |
| _______________________________________________________________________ | _______________________________________________________________________ |
| If solid objects A, B, C, and D of different densities are arranged from least dense to most dense and assuming their densities are higher than that of | |
| pure water, which of them would submerge the fastest if they were all released at the same time onto a beaker containing pure water? | A |
| _______________________________________________________________________ | _______________________________________________________________________ |
| A cube of sugar is tossed onto a glass full of pure water. Without stirring the mixture, you noticed that as it gradually floated toward the top of the water, | |
| exhibiting diminishing density. As the cube of sugar disintegrates, what did it lose as a solid object? | Mass and volume |
| _______________________________________________________________________ | _______________________________________________________________________ |
| What is the mass of a solid silver ball in kg of diameter 352 cm and density of 10.49 x 10^3 kg/m3? Numerical Answer only. Round off to two (2) decimal places. | 239.55 |
| What is the mass of a solid copper ball in kg of diameter 61 cm and density of 8.9 x 10^3 kg/m3? Numerical Answer only. Round off to two (2) decimal places. | 1057.74 |
| What is the mass of a solid gold ball in kg of diameter 168 cm and density of 19.3 x 10^3 kg/m3? Numerical Answer only. Round off to two (2) decimal places. | 47.92 |
| Suppose a 61kg woman floats in fresh water with 81% of her volume submerged when her lungs are full of air. What is her average density (kg/m3)? Numerical Answer only. | 810 |
| 48% of a half-filled PET bottle is immersed in brine while the rest of it is floating. If the density of brine is 1230 kg/m3, what is the density of the filled bottle? Input numerical answer in two decimal places. | 590.4 |
| A plastic sphere floats in water with 64% of its volume submerged. This same sphere floats in glycerin with 60% of its volume submerged. Determine the density of the sphere (kg/m3). Numerical Answer only. | 640 |
| _______________________________________________________________________ | _______________________________________________________________________ |
| What happens to the buoyant force acting on the airship as it rises in the air? | Buoyant force decreases |
| Archimedes' principle states that the buoyant force on an object is equal to ______. | The weight of the fluid displaced |
| What mass of water (at 4.0 °C) can be contained in a rectangular box whose dimensions are 10.0 cm by 5.00 cm by 1.00 cm? The density of water at 4.0 °C is 1.000 ´ 10^3 kg/m3. | 50g |
| The density of iron is 7860 kg/m3. What is the mass of an iron sphere whose diameter is 0.50 m? | 514kg |
| _______________________________________________________________________ | _______________________________________________________________________ |
| A large weather balloon whose mass is 226 kg is filled with helium gas until its volume is 325 m3. Assume the density of air is 1.20 kg/m3 | |
| and the density of helium is 0.179 kg/m3. Find the net force on the balloon and determine whether the balloon will rise or fall after it is released. | 1.04x10^3N |
| _______________________________________________________________________ | _______________________________________________________________________ |
| Which exhibits the greatest pressure applied to a floor? | Wearing stilettos and standing on one foot |
| Holding mass constant, if the volume of an object quadruples, its density is ___. | Quartered |
| Calculate the weight (N)of the air at 20 C in a living room with 5m by 6m and a ceiling at 3m high. Round off to two (2) decimal places. | 1059.48N |
| _______________________________________________________________________ | _______________________________________________________________________ |
| A hydraulic system is used to lift a 3,282kg vehicle in an auto garage. If the vehicle sits on a piston of area 0.77 square meter, and a force is applied to a piston | |
| of area 0.08 square meters, what is the minimum force (N) that must be applied to lift the vehicle? . Round off to two (2) decimal places. | 3345.08N |
| _______________________________________________________________________ | _______________________________________________________________________ |
| What is the mass of a solid copper ball in kg of diameter 30 cm and density of 8.9 x 10^3 kg/m3? Round off to two (2) decimal places. | 125.82kg |
| 64% of a half-filled PET bottle is immersed in kerosene while the rest of it is floating. What is the density of the filled bottle if the density of kerosene is 820 kg/m^3? Input numerical answer in two decimal places. | 524.80 |
| A plastic sphere floats in water with 59% of its volume submerged. This same sphere floats in glycerin with 62% of its volume submerged. Determine the density of the sphere (kg/m3). | 590 |
| 54% of a half-filled PET bottle is immersed in dishwashing liquid while the rest of it is floating. What is the density of the filled bottle if the density of the dishwashing liquid is 1060 kg/m3? Input numerical answer in two decimal places. | 572.40 |
| _______________________________________________________________________ | _______________________________________________________________________ |
| What is the mass of a solid silver ball in kg of diameter 80 cm and density of 10.49 x 10^3 kg/m3? Round off to two (2) decimal places. | 2812.19kg |
| What is the mass of a solid gold ball in kg of diameter 372 cm and density of 19.3 x 10^3 kg/m3? | 520,217.25kg |
| What is the mass of a solid copper ball in kg of diameter 27 cm and density of 8.9 x 103 kg/m3? | 91.72kg |
| Suppose a 64kg woman floats in fresh water with 85% of her volume submerged when her lungs are full of air. What is her average density (kg/m3)? | 850kg/m^3 |
| 18% of a half-filled PET bottle is immersed in kerosene while the rest of it is floating. What is the density of the filled bottle if the density of kerosene is 820 kg/m3? two decimal places. | 147.60kg/m^3 |
| 52% of a half-filled PET bottle is immersed in dishwashing liquid while the rest of it is floating. What is the density of the filled bottle if the density of the dishwashing liquid is 1060 kg/m3? | 551.2kg/m^3 |
| _______________________________________________________________________ | _______________________________________________________________________ |
| A 50.0-kg woman wearing high-heeled shoes is invited into a home in which the kitchen has vinyl floor covering. The heel on each shoe is circular and has a radius of 0.500 cm. If the woman balances on one heel, should the homeowner be concerned? | Yes |
| _______________________________________________________________________ | _______________________________________________________________________ |
| You are shipwrecked and floating in the middle of the ocean on a raft. Your cargo on the raft includes a treasure chest full of gold that you | |
| found before your ship sank, and the raft is just barely afloat. To keep you floating as high as possible in the water, should you__________________________. | secure the treasure chest to the underside of the raft, or hang the treasure chest in the water with a rope attached to the raft |
| _______________________________________________________________________ | _______________________________________________________________________ |
| What force is exerted by the water on the window of an underwater vehicle at this depth if the window is circular and has a diameter of 35.0 cm? | 3.57 x 10 ^ 4 N |
| A stone weighs 450 N in air and 200 N in water. Compute the volume of stone. | 0.025 m3 |
| Within an enclosed vessel, the pressure exerted on a fluid will be distributed and undiminished all throughout the walls of the vessel. Which of the following states this? | Pascal’s Principle |
| Which of the following does not affect the pressure beneath the surface of a liquid? | area of the liquid surface |
| A swimming pool has the dimensions shown in the drawing. It is filled with water to a unidofmr depth of 8m. The density of water = 1x10^3kg/m^3. What is the total pressure exerted on the bottom of the swimming pool? w=15;l=20; | 1.80 x 10^5 Pa |
| A 50.0-kg woman wearing high-heeled shoes is invited into a home in which the kitchen has vinyl floor covering. The heel on each shoe is circular and has a radius of 0.500 cm. If the woman balances on one heel, what pressure does she exert on the floor? | 6.25 MPa |
| Find the position of center of buoyancy for a wooden block of width 3.5 m and depth 1 m, when it floats horizontally in water. The density of wooden block id 850 kg/m3 and its length 7.0 m. | 0.85 |
| The density of substances is 1.63 grams per milliliter. What is the mass of 0.25 liters of the substance in grams? | 407.5g |
| The density of iron is 7860 kg/m3. What is the mass of an iron sphere whose diameter is 0.50 m? | 514g |
| A stone weighs 650 N in air and 275 N in water. Compute its specific gravity. | 1.73 |
| A shower head has 20 circular openings, each with radius 1.0 mm. The shower head is connected to a pipe with radius 0.80 cm. If the speed of water in the pipe is 3.0 m/s, what is its speed as it exits the shower-head openings? | 9.6 |
| How many kilograms of mercury would fill a 5-liter container if the density of mercury is 13.6 grams/centimeter³? | 68kg |
| Estimate the net force exerted on your eardrum due to the water above when you are swimming at the bottom of a pool that is 5.0 m deep. | 5N |
| Several common barometers are built, with a variety of fluids. For which of the following fluids will the column of fluid in the barometer be the highest? | ethyl alcohol |
| Find the density of metallic body which floats at the interface of mercury of sp.gr 13.6 and water such that 40 % of its volume is sub-merged in mercury and 60% in water. | 6040 |
| A body of dimensions 2.7 m * 3.8 m * 2.5 m, weighs 2500 N in water. Find its weight in air. | 254.13kN |
Created by:
Jsean-Ed