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## Physics : This is Hard Quiz !

The subject of physics is interesting for thos e who like it. But whether you like it or not, a certain degree of knowledge on physics is wanted when you appear for any competitive exam. Si here is selected 10 questions on physics to test your knowledge

## Physics GK -Hard One

 Question 1
Our neighbouring spiral galaxy in Andromeda is catalogued as ‘M 31’ What does ‘M’ indicate ?
 A Messier B Medium C Mercator D Magnitude
 Question 2
‘Z’ is not:
 A Zeta potential B Impedance C Atomic number D Section modulus
 Question 3
Which of the following combinations is true about the mass of a body according to Newton? Mass is the quantity of matter contained in a body .Mass is represented by the relation, mass= force/ velocity .Mass is always conserved.Mass of a body is the ratio of its weight to the acceleration due to gravity at a particular place.
 A I. II, and III only B I. III, and IV only C I, II, and IV only D I, II, III, and IV
 Question 4
Inertia is the property of a body which preserves its state of rest or uniform motion in a straight line. The following factors tell more about inertia:   Greater the mass of a body , greater is its inertia, Greater the inertia of a body, lesser will be the acceleration produced by a given force. The law of inertia is the same as Newton’s first law of motion.  Which combination is true ?
 A I, II, and III B I, and II only C I, and III only D II, and III only
 Question 5
Two fully blown balloons are suspended as shown in the diagram. A stream of air is passed in between the balloons. What will happen to the balloons?
 A They will come closer B They will go apart C There will be no change D They will go up
 Question 6
A cricket ball after being hit by a batsman returns to the ground sometime later after having described a parabolic path. Which of the following factors remains unaltered?
 A The kinetic energy of the ball B The potential energy of the ball C The horizontal component of the velocity of the ball D The vertical component of the velocity of the ball
 Question 7
Which of the following is not a vector quantity ?
 A Retardation B Displacement C Velocity D Time
 Question 8
Consider the following situations : A car moves with uniform speed on a smooth level road.A  body moves with uniform speen in a circular path.A labourer carries bricks on his head from one place to another on a smooth level road. Which combination justifies that the work is being done ?
 A II only B I and II only C In all the cases D In none of the cases
 Question 9
From Newton’s laws of motion, one can infer that: Newton’s first law describes the motion of a body free of external forces.Newton’s second law relates force to motion.Newton’s third law is a statement about forces in motion.Newton’s third law leads to the principle of conservation of momentum. Which combination is true ?
 A I, II and III only B I, II and IV only C II, III and IV only D I, II, III and IV
 Question 10
What drives a nail into wood when struck by a hammer ?
 A Force B Impulse C Momentum D Acceleration
There are 10 questions to complete.