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 : 11
The circular motion of a particle with constant speed is
a) periodic and simple harmonic
b) periodic but not simple harmonic
c) simple harmonic but not periodic
d) neither periodic nor simple harmonic
Answer »Answer: (b)
In the circular motion of a particle with constant speed, the particle repeats its motion after a regular interval of time but does not oscillate about a fixed point.
So, the motion of particles is periodic but not simple harmonic.
Question : 13
Consider the following statements :
- The objects appear to be more heavy when submerged in water than they are in air.
- A needle place carefully on the surface of water may float, whereas a ball of the same material will always sink.
a) 1 and 2 both
b) 1 only
c) 2 only
d) None
Answer »Answer: (c)
Buoyancy is an upward force exerted by a liquid, gas or other fluid, that opposes the weight of an immersed object.
Question : 14 [IAS (Pre) 2003]
An oil tanker is partially filled with oil and moves forward on a level road with uniform acceleration. The free surface of oil, then
a) is inclined to the horizontal with larger depth at the rear end
b) is inclined to the horizontal with smaller depth at the rear end
c) remains horizontal
d) assumes parabolic curve
Answer »Answer: (d)
Question : 15 [CDS]
An athlete diving off a high springboard can perform a variety of exercises in the air before entering the water below. Which one of the following parameters will remain constant during the fall?
a) The athlete’s kinetic energy
b) The athlete’s moment of inertia
c) The athlete’s linear momentum
d) The athlete’s angular momentum
Answer »Answer: (d)
IMPORTANT general science mcq EXERCISES
set 2 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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