Everyday Science Mcqs 6

 • Mole unit of amount of substance

• What is measured in units called phon- Sound 192

• What is measured in grains – four grains to a carat- Pearls

• Unit of electromotive force in Volt.

• What is the SI unit of illumination -Lux

• Gross is equal to 12 dozen.

• Ozone is measured in percent age.

• An object traveling at Mach 2 is traveling approximately at 500 mph.(chk)

• What is measured on the Gay-Lussac scale: Alcohol strength

• Chronometer is used to measure… time

• Anemometer is used to measure… Wind Speed

• The clusec is the unit measuring the power of what Vacuum pumps

• One million cycles per second is called Megahertz.

• 0.200 grams are equal to one carat.

• Voltammeter is an electrolytic cell for conducting electrolytic dissociation of electrolyte.

• 8 furlongs make one mile.

• A billion contain 1000 million. It has 9 zeroes. Similarly a trillion has 12 zeroes,a quadrillion 15 zeroes,a

quintillion 18 zeroes and a decillion 33 zeroes.

• One inch is equal to 2.5400 cms and one mile is equal to 1.6093 kms.

• One micron is equal to One-thousandth of a millimeter.

• 2.47105 acres is equal to what SI unit-Hectare

• What word describes one tenth of a nautical mile-Cable

• What is measured on the Torro scale -Tornados

• unit of sound named after- Alexander Graham Bell – Decibel

• The density Smoke is measured on the Rngelmann scale-

• Unit of electromotive force in Volt.

• Power is measured in Watts (w).

• Resistance was discovered by Girge Ohm in 1826, and is measured in ohms.

• Electricity does not flow through a circuit by itself. It needs a ‘push’, or energy, to keep it moving. We call

this energy the voltage of the circuit. Voltage is measured in volts (v).

• The German scientist George Ohm (1787-1854) is best remembered for working out ohm’s law. He discovered that they voltage across a conductor such as a trip of metal or a wire – and the current following through it always vary in the same proportion. So if you double the voltage, you double the current. This is incredibly useful; because it lets you predict the current you will get for a particular voltage.

• The thickness of silk is measured in what- Denier

• Ohm’s law does not apply to semiconductors and conductors when there is change in temperature.

• In our houses we get 220 V a.c. The value of 220 V represents the effective voltage.

• One unit of electric power is consumed when 10 A of current flows for 1 hour at 100 V. 1 Unit = 1 kw hr = 1000 w hr = 100 x 10 x 1 hr

• If the same note is played on a flute and a sitar, one can still distirguish b/w them because they differ in quality.

• A negatively charged glass rod has always less protons than electrons.

• The wavelength of the X-rays is of the order of 0.1 nanometer.

• Red, green and blue are known as primary colours. These are colours which cannot be produced by mixing with other colours.

• Scattering of light ___ the duration of the day (make)

• Oil rises in a wick of oil lamp on account of a property of matter called Capillary Action

• a primary cell can ___ be charged again (not)

• When a person can see nearer objects but not the distant ones he is said to be suffering from : nearsightedness (myopia)

• ATP is a molecule containing high energy bonds.

• An example of inorganic compound is carbon monoxide.

• The time period of a pendulum on moon increases.

• Clinical thermometer usually measures in Fahrenheit.

• Tube light emits radiation even after it is disconnected. It is due to Fluorescence.

• Shortsightedness can be corrected with the use of Concave.

• Rectifier converts AC into DC

• Atomic weight of chemical compounds is determined by Mass spectroscopy.

• Atomic pile is a place where nuclear fission is made.

• Drinker’s apparatus is for measuring the amount of Alcohol in the blood.

• Dewar’s flask is called as thermos.

• The conversion of gases into liquid under high pressure and low temperature is called regulation.

• If a green leaf is seen in a red light its color will be black.

• Emerge of VIBGYOR from one side of the prism is due to refraction and dispersion of light.

• Oxidation is the process in which electron is lost.

• Half-time is a time of radioactive substance taken by that substance to decompose radioactivity to half of its

weight.

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