Physics

Mechanics

⛪ Science > Physics

Mechanics is the branch of Physics dealing with the study of motion when subjected to forces or displacements, and the subsequent effects of the bodies on their environment. There are two sub disciplines Classical Fields and Quantum Fields.

➲ Mechanics - Quiz

Q 1: Number of basic SI unit is

  • A 6
  • B 5
  • C 7
  • D 4

Q 2: Ampere is the unit of:

  • A Current Electricity
  • B Magnetic Field
  • C Electric Charge
  • D Resistance

Q 3: Which of the following is not the unit of energy?

  • A Calorie
  • B Joule
  • C Electron volt
  • D Watt

Q 4: What is the SI unit of Young's modulus of elasticity?

  • A dyne/cm
  • B newton/m
  • C newton/m2
  • D m2/s

Q 5: Light-year is the unit of

  • A Time
  • B Astronomical Distances
  • C Light
  • D Intensity of Light

Q 6: What is the SI unit of pressure?

  • A Pascal
  • B Dyne
  • C Newton
  • D Jule

Q 7: Which of the following is not the unit of time?

  • A Parallactic second
  • B Micro second
  • C Leap year
  • D Solar day

Q 8: Curie is the unit of

  • A temperature
  • B radio activity
  • C heat
  • D energy

Q 9: One fermimetre is equal to

  • A 10-9 m
  • B 10-15 m
  • C 10-18 m
  • D 10-12 m

Q 10: Decibel is the unit of

  • A Speed of Light
  • B Intensity of Sound
  • C Intensity of Heat
  • D None

Q 11: SI unit of luminous intensity is

  • A Lumen
  • B Lux
  • C Candela
  • D Watt

Q 12: One astronomical unit is the average distance between

  • A Earth and the Moon
  • B Earth and the Jupiter
  • C Pluto and the Sun
  • D Earth and the Sun

Q 13: Parsec is the unit measurement of

  • A Density of Stars
  • B Density of Air
  • C Density of Planet
  • D None

Q 14: One light year is approximately equal to

  • A 108 km
  • B 1012 m
  • C 1016 m
  • D 1016 km

Q 15: Which of the following physical quantities have the same dimensions?

  • A Kinetic energy and Velocity
  • B Work and Torque
  • C Potential energy and Linear momentum
  • D Angular momentum and Work

Q 16: The most suitable unit for expressing nuclear radius is

  • A Fermi
  • B micron
  • C nanometre
  • D angstrom

Q 17: The SI unit of acceleration is

  • A ms-1
  • B ms-2
  • C cms-2
  • D kms-2

Q 18: Erg * Sec is the unit of

  • A Energy
  • B Linear Momentum
  • C Angular Momentum
  • D Planck's Constant

Q 19: Unit of resistance is

  • A volt * ampere
  • B volt2 * ampere
  • C volt/ampere
  • D ampere/volt

Q 20: The rate of change of momentum of a body is equal to the resultant

  • A Energy
  • B Force
  • C Impulse
  • D Power

Q 21: The SI unit of mechanical power is

  • A Joule
  • B Watt
  • C Newton-Second
  • D Joule-Second

Q 22: Which of the following is a vector quantity?

  • A Momentum
  • B Pressure
  • C Energy
  • D Work

Q 23: The instrument used to measure pressure

  • A Aneroid Barometer
  • B Anemometer
  • C Thermometer
  • D Hygrometer

Q 24: Joule is related to energy in the same way as Pascal is related to

  • A Mass
  • B Pressure
  • C Density
  • D Purity

Q 25: Who invented the safety razor?

  • A Steve Cher
  • B Lar Strauss
  • C Gillette
  • D None

Q 26: A person can jump higher on the moon's surface than earth on the earth because

  • A the moon's surface is rough
  • B the moon has no atmosphere
  • C the acceleration due to gravity in moon is smaller than that on the earth
  • D the moon is cooler than earth

Q 27: When the milk is churned vigorously the cream from it is separated out due to?

  • A Frictional Force
  • B Centrifugal Force
  • C Centripetal Force
  • D Gravitational Force

Q 28: It is easy to burst a gas-filled balloon with a needle than with nail. It is because

  • A Nail exerts more pressure than needle on the ballon
  • B Needle exerts more pressure than nail on the balloon
  • C Nail is more longer than needle
  • D gas is reactive with the needle

Q 29: A passenger in a moving train tosses a coin upward which falls behind him. It implies that the motion of the train is

  • A accelerated
  • B along the circular tracks
  • C retarded
  • D uniform

Q 30: Which of the following is in vector form?

  • A Speed
  • B Mass
  • C Length
  • D Velocity