mechanics (mass, force, acceleration, work, energy, momentum, velocity) - Category wise Question and Answer Practice Test with Solutions
mechanics (mass, force, acceleration, work, energy, momentum, velocity) PRACTICE TEST [5 - EXERCISES]
set 1
set 2
set 3
set 4
set 5
Question : 2 [IAS (Pre) 2000]
Assertion (A):
A man standing on a completely frictionless surface can propel himself by whistling.
Reason (R):
If no external force acts on a system, its momentum cannot change.
Code
a) (A) is true, but (R) is false
b) Both (A) and (R) are true, but (R) is not the correct explanation of (A)
c) Both (A) and (R) are true and (R) is the correct explanation of (A)
d) (A) is false, but (R) is true
Answer »Answer: (b)
Question : 3 [NDA]
If a light body and a heavy body have equal momentum, then
a) the kinetic energy of the lighter body is equal to the kinetic energy of the heavier body
b) the lighter body has lesser kinetic energy than the heavier body
c) the lighter body has greater energy than the heavier body
d) the kinetic energy of both the bodies are independent of momentum.
Answer »Answer: (a)
Question : 4
Consider the following statements :
- Copernicus discovered that the earth moves around the sun.
- An astronaut cannot use a straw to sip a drink on the surface of the moon.
- The S.I. unit of weight is kilogram.
a) 2 and 3
b) 1 and 2
c) 1 and 3
d) 1, 2 and 3
Answer »Answer: (b)
The weight of an object is the force on the object due to gravity.
The unit of measurement for weight is that of force, which in the International System of Units (SI) is the newton.
IMPORTANT general science mcq EXERCISES
set 5 Online Quiz
Click to Start..general science mcq CATEGORIES
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» Measurement And SI Units
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» Measuring Devices And Scales
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» Mechanics (Mass, Force, Acceleration, Work, Energy, Momentum, Velocity)
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» Force Of Gravity, Solids And Fluids
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» Motion Under Gravity
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» Physical Properties Of Materials
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» Light, Heat, Thermodynamics, Wave Motion, Sound, Optics & Oscillations
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» Electric Current And Magnetism
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» Nuclear Physics And Conductivity
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» Modern And Space Physics, Sources Of Energy
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» General Concepts Of Chemistry
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» Nature Of Matter And Composition
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» Atomic Structure Molecules And Nuclear Chemistry
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» Classification Of Elements, Chemical Bonding, Periodicity In Properties & Physical Transformation
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» Metals, Non Metals, Minerals, Ores, Properties, Uses
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» Alloys, Carbon & Its Various Forms, Hydrogen & Compounds, Sulphur, Nitrogen, Halogen & Inert Gases
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» Acids, Bases, Salts And Metals
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» Hydrocarbon, Alcohol, Polymer, Organic Acid And Explosive Substance
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» Fuel, Food Preservation, Nutrition, Medicine, Detergents And Fertilizers
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» Inorganic Chemistry
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» Organic Chemistry
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» Environmental Chemistry
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» Some Important Man Made Materials
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» Sub Divisions Of Biology
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» Genetics, Evolution Of Life & Ecological Biodiversity
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» Taxonomy
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» Heredity
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» Biofertilizer
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» Biological Classification Cell Tissues And Division
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» Human Anatomy
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» Blood Transport System
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» Digestion And Excretion
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» Photosynthesis
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» Vitamins, Nutrition, Health, Disease And Treatment
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» Endocrine Glands, Hormones
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» Physiology Of Plants, Humans And Animals
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» Reproduction
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» Genetic Engineering And Bio Technology
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