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 : 21
Consider the following statements :
- A body can have constant velocity and still have varying speed.
- A body falls freely from a height with uniform acceleration.
a) 1 and 2 both
b) 1 only
c) 2 only
d) None
Answer »Answer: (d)
Earth is not uniform and also rotating, so the free fall acceleration g on the earth differs slightly from the gravitational acceleration ag.
Question : 22
Statement A :
While walking on ice, one should take small steps to avoid slipping.
Statement B :
This is because smaller steps ensure smaller friction.
a) Both statements are correct.
b) Statement B is correct.
c) Statement A is correct.
d) Both statements are incorrect.
Answer »Answer: (c)
Question : 24 [NDA]
A particle oscillates in one dimension about the equilibrium position subject to a force $F_x$(x) that has an associated potential energy U(x). If k is the force constant, which one of the following relations is true?
a) U(x) = $1/2$kx
b) $F_{x}(x) = –kx$
c) $F_{x}(x) = –kx^2$
d) U(x) =$1/2k^2x$
Answer »Answer: (b)
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