Everyday Science Test 33
Total Questions: 30
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A ) Begins to increase
B ) Begin to decrease
C ) Remain constant ✅
D ) Fluctuates
A ) DC to AC
B ) AC to DC
C ) High level to low voltage ✅
D ) Low level to high voltage
A ) Plane and convex mirror ✅
B ) Plane mirrors alone
C ) Concave and convex mirror
D ) Concave mirrors alone
A ) Colour of the rainbow
B ) Colour in the spectrum of white light
C ) Colours which cannot be produced ✅
D ) Colour found in nature
A ) Dispersion
B ) Refraction
C ) Diffraction
D ) Total internal reflection ✅
A ) It contains more electrical energy
B ) It is free from voltage fluctuations
C ) It's generation costs much less
D ) It can be transmitted over long distances with minimum power loss ✅
A ) Viscosity
B ) Surface tension ✅
C ) Atmospheric pressure
D ) Gravity
A ) Differential scattering of sunlight by the atmosphere ✅
B ) Total internal reflection of the sunlight by the atmosphere
C ) Absorption of sunlight
D ) Refraction of sunlight by the atmosphere
A ) Outside is more than inside the roof
B ) Inside is more than outside the roof ✅
C ) Increase due to wind velocity
D ) Is exerted by air from outside
A ) Chemical effect of current
B ) Heating effect of current
C ) Magnetic effect of current
D ) Discharge of electricity through gases ✅
A ) Base
B ) Acid
C ) Salt ✅
D ) Hydrocarbon
A ) Long chain fatty acids esters ✅
B ) Long chain sulphonic acid esters
C ) Polymeric aldehydes
D ) Polymeric aldehydes
A ) Mercury
B ) Sodium
C ) Potassium
D ) Barium ✅
A ) Al-Beruni
B ) Jabir bin Haiyan
C ) Khalid Bin yazeed ✅
D ) Buali Sina
A ) Aljahiz
B ) Wohler ✅
C ) Jabir bin Haiyan
D ) Al-Beruni
A ) Biochemistry
B ) Nuclear Chemistry ✅
C ) Analytical chemistry
D ) Organic chemistry
A ) White phosphorus
B ) Yellow phosphorus
C ) Red phosphorus ✅
D ) Black phosphorus
A ) Valency ✅
B ) Electrons
C ) Radioactivity
D ) Ionization
A ) Ionize ✅
B ) Evaporate
C ) Freeze
D ) Boil
Explanation:
- Radioactivity was discovered by Becquerel.
- Radioactivity emerges from: Nuclear energy.
- Radioactivity is measured by which device Geiger counter.
- Thorium metal is not only magnetic but also radioactive Radioactive element are Plutonium, Thorium, Uranium.
- Alpha rays is a positively charged particle emitted by a radioactive element.
- A negatively charged particle emitted by a radioactive element during radioactive decay is called a beta particle.
- Radioactive isotopes are used in medicine for both diagnostic imaging and treatment.
- A 100 g sample of a radioactive element has a half life of 5 days. 12.5grams of radioactive material will remain after 15 days.
- Radioactive elements have atomic number greater than82.
- Weak Nuclear Force is responsible for the radioactive decay of the nucleus.
- The radioactive material must be placed in a box of Lead.
- Radioactive cobalt 60 is used for curing: Cancerous cells.
- Radioactive isotope present in atmosphere is: carbon -14.
- Unstable nuclei are radioactive.When radioactivity rays are passed through air or any gas, they cause it to Ionize.
A ) Mineral fuels ✅
B ) Wood
C ) Coal
D ) Microbs
A ) Respiration
B ) Digestion of food ✅
C ) Immune system
D ) Reproduction
A ) Salivary glands ✅
B ) Pituitary gland
C ) Thyroid gland
D ) Pancreas
A ) Hands
B ) Neck
C ) Buttocks ✅
D ) Legs
A ) Sleep inducing drug
B ) Unit of heredity ✅
C ) A type of body cell
D ) A kind of vitamin
A ) To transport oxygen ✅
B ) Destruction of bacteria
C ) Prevention of anaemia
D ) Utilization of energy
A ) 34_40 ✅
B ) 17_30
C ) 45_55
D ) 10_17
A ) The do of medicine
B ) The actual things
C ) Relevant papers ✅
D ) Unarranged papers
A ) Sugar
B ) Insulin ✅
C ) Calcium
D ) Vitamins
A ) Tissue taken from a dead body
B ) Tissue taken from living body ✅
C ) Blood from veins
D ) Blood from arties
A ) Polio
B ) Whooping cough ✅
C ) Tuberculosis
D ) Contagious diseases