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Laws of Motion
Question | Answer |
---|---|
Newton’s First Law of Motion | An object at rest stays at rest or an object in motion stays in motion until unbalanced forces act upon it. This is often referred to as Newton's law of inertia. |
Inertia | The tendency of a physical object to remain still or continue moving unless force is applied |
At rest | The state of an object when it is not in motion |
Unbalanced Forces | Forces on an object that cause change in the motion of the object |
Newton’s Second Law of Motion | Acceleration of an object depends on the object's mass and the magnitude of the force acting upon it (F = ma). This is often referred to as Newton's law of force and acceleration. |
Force | A push or pull that can change the motion of an object |
Magnitude | The size or quantity of something |
Acceleration | The rate of change in an object's speed |
Newton’s Third Law of Motion | For every action there is an equal and opposite reaction. This is often referred to as Newton's law of action-reaction. |
Action | The way that something causes a change |
Reaction | Resistance or force of equal magnitude acting in the opposite direction of an action force |
a pencil will not move on it's own | Newton’s First Law of Motion |
all objects will remain still unless other forces intervene | Inertia |
The state of an object when it is not in motion | At rest |
Forces on an object that cause change in the motion of the object | Unbalanced Forces |
Acceleration of an object depends on the object's mass and the magnitude of the force acting upon it (F = ma). This is often referred to as Newton's law of force and acceleration. | Newton’s Second Law of Motion |
A push or pull that can change the motion of an object | Force |
The size or quantity of something | Magnitude |
The rate of change in an object's speed | Acceleration |
For every action there is an equal and opposite reaction. This is often referred to as Newton's law of action-reaction. | Newton’s Third Law of Motion |
The way that something causes a change | Action |
Resistance or force of equal magnitude acting in the opposite direction of an action force | Reaction |