Force is any interaction that will change the motion of an object when unopposed. A force can cause an object with mass to change its velocity which includes to begin moving from a state of rest, i.e., to accelerate. Force is a vector quantity as it has both magnitude and direction. Mathematically, Force = mass acceleration. Its S.I. unit is Newton.
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When we talk of force acting on a body, it usually means:
A. Electrical force
B. Balanced force
C. Unbalanced force
D. Nuclear forceLakhmir Singh & Manjit Kaur - Physics
If we release a magnet held in out hand, it falls to the ground. The force which makes the magnet fall down is an example of:
A. Balanced force
B. Unbalanced force
C. Magnetic force
D. Muscular forceLakhmir Singh & Manjit Kaur - Physics
A ball moving on a surface stops after travelling some distance. Does it violate the first law of motion? Explain.Together with Science
Write or false for the following statements:
1 N is that force which produces acceleration of 1 m s-2 in a body of mass 1 g.Evergreen - Science
(a) Write an activity to demonstrate balanced and unbalanced forces.
(b) State whether the forces are balanced or unbalanced in each case:
(i) Suitcase dropped from a height.
(ii) A bicycle moving with constant velocity on a straight road.
(iii) The rope does not move in a tug of war on applying force at both ends.Together with Science