Mid-Contact Forces & Newton's Laws of Motion

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What is an unbalanced force?

Back

An unbalanced force is a force that causes an object to change its motion. It occurs when the total forces acting on an object are not equal, resulting in acceleration.

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What is a balanced force?

Back

A balanced force is 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 does Newton's 1st Law of Motion state?

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Newton's 1st Law of Motion states that an object at rest will stay at rest, and an object in motion will stay in motion at a constant speed and in a straight line unless acted upon by an unbalanced force.

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What does Newton's 2nd Law of Motion state?

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Newton's 2nd Law of Motion states that the acceleration of an object depends on the mass of the object and the amount of force applied. It can be expressed with the formula F=ma (Force = mass x acceleration).

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What does Newton's 3rd Law of Motion state?

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Newton's 3rd Law of Motion states that for every action, there is an equal and opposite reaction.

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What is the relationship between mass and force according to Newton's 2nd Law?

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According to Newton's 2nd Law, the greater the mass of an object, the more force is required to accelerate it.

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What happens to an object's speed when a force is applied?

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When a force is applied to an object, it can change the object's speed, either increasing or decreasing it depending on the direction of the force.

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Who formulated the laws of motion?

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Sir Isaac Newton formulated the laws of motion.

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What is inertia?

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Inertia is the tendency of an object to resist changes in its state of motion. It is directly related to the mass of the object.

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What is an example of balanced forces in everyday life?

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