Laws of Motion
Physics ⇒ Mechanics
Laws of Motion starts at 8 and continues till grade 12.
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See sample questions for grade 10
A ball is thrown vertically upwards. What is the direction of the net force acting on it while it is rising?
Define momentum.
If a moving object comes to rest, what can you say about the net force acting on it during this process?
If the mass of an object is doubled while keeping the force constant, what happens to the acceleration?
If the net force acting on an object is zero, what can you say about its motion?
State Newton's Second Law of Motion.
State the mathematical formula for Newton's Second Law of Motion.
Which law explains why passengers lurch forward when a car suddenly stops?
Which of the following is a correct statement of Newton's First Law?
(1) Every object continues in its state of rest or uniform motion unless acted upon by an external force.
(2) Force equals mass times acceleration.
(3) For every action, there is an equal and opposite reaction.
(4) The rate of change of momentum is proportional to the applied force.
Which of the following is a non-contact force?
(1) Friction
(2) Gravitational force
(3) Tension
(4) Air resistance
Which of the following is an example of Newton's Third Law?
(1) A book resting on a table
(2) A rocket launching
(3) A ball rolling on the ground
(4) Water boiling
Which of the following is Newton's First Law of Motion also known as?
(1) Law of Inertia
(2) Law of Acceleration
(3) Law of Action and Reaction
(4) Law of Conservation of Energy
Newton's Third Law states that for every action, there is an ______ and ______ reaction.
The acceleration produced in a body is ______ proportional to the net force applied and ______ proportional to its mass.
The action and reaction forces act on ______ bodies and are ______ in magnitude and ______ in direction.
The force required to stop a moving object depends on its ______ and ______.
A person pushes a wall, but the wall does not move. According to Newton's Third Law, does the wall exert a force back on the person?
Is friction always a disadvantage in daily life?
Is it possible for an object to be in motion if the net force acting on it is zero?
Is it true that an object at rest will remain at rest unless acted upon by an external force?
