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Key Concepts:: o o o o

Newton's First Law of Motion, or the Law of Inertia, asserts that objects remain at rest or in uniform motion unless acted upon by an unbalanced external force. Key concepts include inertia, which describes an object's resistance to changes in motion, and the distinction between balanced and unbalanced forces. Examples illustrate that stationary objects remain still without external forces, while moving objects continue their motion until forces like friction or gravity intervene.

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11 views1 page

Key Concepts:: o o o o

Newton's First Law of Motion, or the Law of Inertia, asserts that objects remain at rest or in uniform motion unless acted upon by an unbalanced external force. Key concepts include inertia, which describes an object's resistance to changes in motion, and the distinction between balanced and unbalanced forces. Examples illustrate that stationary objects remain still without external forces, while moving objects continue their motion until forces like friction or gravity intervene.

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emihova.phoenix
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Newton's First Law of Motion, also called the Law of Inertia, states:

"An object at rest stays at rest, and an object in motion stays in motion with the same
speed and in the same direction unless acted upon by an unbalanced external force."

Key Concepts:

1. Inertia: The tendency of objects to resist changes in their motion.


o A stationary object won’t move unless something forces it to.
o A moving object won’t stop or change direction unless something interferes.
2. Balanced vs. Unbalanced Forces:
o If forces acting on an object are balanced, it stays still or keeps moving at the
same velocity.
o If an unbalanced force acts on it (like friction, gravity, or a push), it will
accelerate, slow down, or change direction.

Examples:

 A book on a table stays at rest because no force is pushing it horizontally.


 A moving car continues to roll forward until friction, air resistance, or brakes slow it
down.
 When you stop pedaling a bicycle, it eventually slows due to friction and air resistance.

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