Physics Laws of Motion Exercise3d
Please Select
Q1 State the usefulness of Newton’s third law of motion.
Q2 State Newton’s third law of motion
Q3 State and explain the law of action and reaction, by giving two examples.
Q4 Name and state the action and reaction in the following cases:
(a) Firing a bullet from a gun,
(b) Hammering a nail,
(c) A book lying on a table,
(d) A moving rocket,
(e) A person walking on the floor,
(f) A moving train colliding with a stationary train
Q5 Explain the motion of a rocket with the help of Newton’s third law
Q6 When a shot is fired from a gun, the gun gets recoiled. Explain.
Q7 When you step ashore from a stationary boat, it tends to leave the shore. Explain.
Q8 When two spring balances joined at their free ends, are pulled apart, both show the same reading. Explain
Q9 To move a boat ahead in water, the boatman has to push the water backwards by his oar. Explain.
Q10 A person pushing a wall hard is liable to fall back. Give reason.
Q11 “The action and reaction both act simultaneously.” Is this statement true?
Q12 “The action and reaction are equal in magnitude”. Is this statement true?
Q13 A light ball falling on ground, after striking the ground rises upwards. Explain the reason
Q14 Comment on the statement ‘the sum of action and reaction on a body is zero’.
Multiple Choice type Questions :
Q1 Newton’s third law:
(a) Defines the force qualitatively
(b) Defines the force quantitatively
(c) Explains the way a force acts on a body
(d) Gives the direction of force.
Q2 Action and reaction act on the:
(a) Same body in opposite directions
(b) Different bodies in opposite direction
(c) Different bodies, but in same direction
(d) Same body in same direction.
Contact Us
