Everyday Science
351. When our sun reaches the end of its red giant phase, it will turn into a ________?
a. Supernova
b. White Dwarf
c. Black Hole
d. Neutron Star
352. What sub-class of neutron star is known for its extremely high magnetic field?
a. Magnetar
b. Quasar
c. Magneto
d. Magnetta
353. A pulsar is a rapidly spinning neutron star which emits:
a. A blind light when it aligns with the planets
b. Radio waves detectable from Earth
c. A gravitational pull which attracts high energy dust particles
d. Enough energy to power itself indefinitely
354. In a typical H-R diagram, stars are graphed by these two characteristics:
a. Temperature and luminosity
b. Luminosity and distance
c. Distance and temperature
d. Size and distance
355. You have discovered a new celestial body. It has a thick atmosphere and it produces powerful cosmic winds and, when observed, the clouds obscure the body. You have determined it is this type of star.
a. Wolf-Rayet star
b. Red supergiant
c. Stellar storm
d. Pulsar
356. When a star becomes a singularity and has zero volume and infinite density, it is called ________?
a. White dwarf
b. Blue giant
c. Wolf-Rayet star
d. Black hole
357. PSR J0108-1431 is the closest known __________ to Earth?
a. Black hole
b. Red giant
c. Quasar
d. Pulsar
358. Practice clouds from where stars are formed are known as _________?
a. Stellar nurseries
b. Star clouds
c. Event horizons
d. Singularities
359. This in-between phase of stellar nurseries and star formation in stellar evolution is when the gathered dust is still condensing to form a star.
a. Alpha Stage
b. Stellar Genesis
c. Protostar
d. Star of Adam
360. Antares is of the largest known _________?
a. Quasars Star
b. Pulsars Star
c. White Dwarfs Star
d. Red Super-giants Star
361. The sun is made up of 99.9% of _______ and _______?
a. Oxygen and Hydrogen
b. Hydrogen and Sulfur
c. Carbon and Silicon
d. Hydrogen and Helium
362. The Big Dipper is part of which constellation?
a. Ursa Major
b. Ursa Minor
c. The Great Bear
d. A. and C. above
363. What are the names of the two stars in the Big Dipper used to locate Polaris?
a. The North Seekers
b. The Pointer Stars
c. The Pointer Sisters
d. None of these
364. What causes the Moon's phases?
a. The Sun lights up only one half of the Moon and as the Moon orbits the Earth we can sometimes see the unlit side of the Moon.
b. The Sun lights up only one half of the Moon and as the Sun orbits the Earth we can sometimes see the unlit side of the Moon.
c. The Earth's shadow falls on the Moon, blocking the sunlight.
d. The Moon's shadow falls on the Earth, blocking the sunlight.
365. The largest dark patches on the Moon's surface are known as _________?
a. Dark matter
b. Maria, or seas, even though there is no water on the Moon
c. Maria, or seas, because they are filled with water
d. Moon spots
366. Which one is the brightest star in the night sky?
a. Betelgeuse
b. Sirius
c. Rigel
d. Polaris
367. Oranges are rich source of _________?
a. Carbohydrates
b. Fats
c. Proteins
d. Vitamins
368. The SI standard of time is based on ________?
a. the daily rotation of the earth
b. the frequency of light emitted by Kr86
c. the yearly revolution of the earth about the sun
d. a precision pendulum clock
e. none of these
369. During a total solar eclipse the rate of Photosynthesis ________?
a. Increase
b. Decrease
c. Remain Constant
d. None of them
370. Water is a universal solvent for what reactions?
a. Chemical
b. Biochemical
c. Physical
d. Nuclear
371. Which of the following is closest to a yard in length?
a. 0.01m
b. 0.1m
c. 1m
d. 10m
e. 100m
372. The SI base unit for mass is _________?
a. Gram
b. Pound
c. Kilogram
d. Ounce
373. The average speed of a moving object during a given interval of time is always:
a. the magnitude of its average velocity over the interval
b. the distance covered during the time interval divided by the time interval
c. one-half its speed at the end of the interval
d. its acceleration multiplied by the time interval
e. one-half its acceleration multiplied by the time interval
374. All of the following statements are incorrected except:
a. Precision and accuracy should go side by side in a scientific work
b. Scientific work must be precise, accuracy is not essential
c. Scientific work must be accurate, precision is not essential
d. Calculations must be made before any experiment
375. An atom is ________?
a. smallest indivisible particle in an element
b. smallest particle of an element which can undergo a chemical reaction
c. building block of an element
d. always smaller than molecule
376. Which of the following is a substance?
a. Sea Water
b. Brass
c. Tape water
d. Graphite
e. Sand
377. Some substances are good conductor of electricity in both the solid and liquid states. These substances are generally _________?
a. iconic substances
b. metallic substances
c. molecular solids
d. covalent network solids
378. All of the following substances are crystalline except ________?
a. Ice
b. Diamond
c. Sucrose
d. Plastic
379. Honey contain glucose and fructose along with some other ingredients, it has greater viscosity due to _________?
a. hydrogen bonding
b. irregular shape of the molecules
c. irregular shape of the molecules and strong inter-molecular forces
d. greater molecular size
380. Rate of evaporation of petrol is greater than that of water at room temperature because:
a. petrol molecules do not have any hydrogen bond
b. petrol is an organic compound
c. water molecules have small size
d. petrol molecules have greater size
381. The increasing vapor pressure caused by heating a liquid is due to ________?
a. increase inter-molecular interactions
b. increasing potential energy of molecules
c. increasing kinetic energy of molecules
d. decreasing surface tension
382. Covalent network crystals have ________?
a. higher melting point then molecular crystals
b. lower melting point then molecular crystals
c. discrete molecules linked by Van der Waals forces
d. hydrogen bonding
383. Color of the glow produced in the discharge tube:
a. depends on the pressure in the discharge tube
b. depends on the metal used as cathode
c. depends on the gas used in the discharge tube
d. does not depend on the nature of the gas used in the discharge tube
384. Nuclear radiation is emitted by those elements whose:
a. molecules are stable
b. molecules are unstable
c. nuclei are stable
d. nuclei are unstable
385. Second ionization energy:
a. is always less than first ionization energy
b. is always greater than first ionization energy
c. is equal to the first ionization energy
d. may be greater or less than the first ionization energy depending on the nature of the element
386. All of the following are electromagnetic radiations except ________?
a. Red light
b. Sound waves
c. X-Rays
d. Photon
387. Which of the following has the highest energy?
a. gamma rays
b. X-rays
c. Ultra-violet radiation
d. radio waves
388. Which of the following has the largest wavelength?
a. visible light
b. x-rays
c. infrared light
d. ultraviolet radiation
389. Select the arrangement of electromagnetic radiation which starts with the lowest energy and increases to greatest energy?
a. radio, visible, infrared, ultraviolet, x-ray, gamma ray
b. radio, infrared, visible, x-ray, gamma ray, ultraviolet
c. visible, radio, infrared, ultraviolet, x-ray, gamma ray
d. radio, infrared, visible, ultraviolet, x-ray, gamma ray
390. "Each electron in an atom must have its own unique set of quantum numbers" is a statement of ________?
a. Aufbau principle
b. Pauli exclusion principle
c. Hund's rule
d. Periodic law
391. One of the following ways of expressing the concentration of a solution does not depend on temperature. It is _________?
a. Molarity
b. Molality
c. Normality
d. Formality
392. A substance which increases the efficiency of a catalyst is termed as:
a. Promoter
b. Activator
c. Retarder
d. Super catalyst
393. The amount of energy required by the children of age between one to three years is _______?
a. 300 k Calories
b. 600 k Calories
c. 900 k Calories
d. 1200 k Calories
394. According to the definition of 1 KWh, a 100 watt bulb consumes one unit of electricity in ______?
a. 1 hour
b. 5 hours
c. 10 hours
d. 15 hours
395. In eye donation, which one of the following parts of donor's eye is utilizes?
a. Iris
b. Lens
c. Cornea
d. Retina
396. The 'stone' formed in human kidney consist mostly of ________?
a. Calcium oxalate
b. Sodium acetate
c. Magnesium sulphate
d. Calcium
397. Approximately, how many times each day do our heart valves open and close normally?
a. 10,000
b. 1,00,000
c. 1,50,000
d. 2,00,000
398. Quantity of fresh air required for a man is 1000 cubic feet of air for every ________?
a. 5 minutes
b. 10 minutes
c. 15 minutes
d. 20 minutes
399. What kind of weathering takes place on the valley side above the surface of the glacier?
a. Plucking
b. Abrasion
c. Chemical weathering
d. Frost shattering
400. Rainfall related to mountains is:
a. Orographic rainfall
b. Normal rainfall
c. Monsoon rains
d. Cyclonic rainfall
