Newton's Laws of Motion

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What is a Balanced Force?

Back

A balanced force occurs when two forces acting on an object are equal in size but opposite in direction, resulting in no change in motion.

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What is an Unbalanced Force?

Back

An unbalanced force occurs when two forces acting on an object are not equal, causing the object to accelerate in the direction of the greater force.

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What does Newton's Law of Inertia state?

Back

Newton's Law of Inertia states that an object at rest will stay at rest, and an object in motion will stay in motion at a constant velocity unless acted upon by an unbalanced force.

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What is Newton's Second Law of Motion?

Back

Newton's Second Law of Motion states that the acceleration of an object is directly proportional to the net force acting on it and inversely proportional to its mass, expressed as F = m x a.

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What is Newton's Third Law of Motion?

Back

Newton's Third Law of Motion states that for every action, there is an equal and opposite reaction.

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Example of Balanced Forces in everyday life?

Back

A book resting on a table is an example of balanced forces; the force of gravity pulling it down is balanced by the normal force of the table pushing it up.

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Example of Unbalanced Forces in everyday life?

Back

A car accelerating forward is an example of unbalanced forces; the engine's force is greater than the frictional force opposing it.

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What happens to a passenger in a car crash if they are not wearing a seatbelt?

Back

The passenger continues moving forward due to inertia, which can lead to injury as they collide with the dashboard or windshield.

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How does mass affect acceleration according to Newton's Second Law?

Back

According to Newton's Second Law, as mass increases, acceleration decreases if the same force is applied.

Front

What is the formula for calculating force?

Back

The formula for calculating force is F = m x a, where F is force, m is mass, and a is acceleration.