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Questions and Answers
According to Newton's First Law, an object in motion will always come to rest if no external force is applied.
According to Newton's First Law, an object in motion will always come to rest if no external force is applied.
False
Inertia is a property that only applies to large objects.
Inertia is a property that only applies to large objects.
False
An object at rest will always remain at rest unless acted upon by an external force.
An object at rest will always remain at rest unless acted upon by an external force.
True
Inertia is a measure of an object's acceleration.
Inertia is a measure of an object's acceleration.
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Newton's First Law is only applicable to objects on Earth.
Newton's First Law is only applicable to objects on Earth.
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A car will always stop moving immediately if the engine is turned off.
A car will always stop moving immediately if the engine is turned off.
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Newton's First Law is also known as the 'Law of Motion'.
Newton's First Law is also known as the 'Law of Motion'.
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Study Notes
Newton's First Law of Motion
Inertia
- Inertia is the tendency of an object to resist changes in its motion.
- An object at rest will remain at rest, and an object in motion will continue to move with a constant velocity, unless acted upon by an external force.
Key Points
- The law applies to all objects, big or small, and is a fundamental principle in understanding the behavior of objects.
- Inertia is a measure of an object's reluctance to change its motion.
- The law is often referred to as the "Law of Inertia".
Examples
- A car will keep moving in a straight line unless acted upon by an external force, such as friction or a turn.
- A bowling ball will keep moving in a straight line until it is acted upon by an external force, such as friction or a collision.
- A person sitting in a moving car will tend to keep moving in the same direction as the car unless acted upon by an external force, such as the car's brakes or a turn.
Importance
- Newton's First Law is crucial in understanding many everyday phenomena, such as the behavior of vehicles, the motion of objects on inclined planes, and the behavior of projectiles.
- It is also essential in many fields, including engineering, physics, and astronautics.
Newton's First Law of Motion
Inertia
- Objects tend to resist changes in their motion, meaning they will remain at rest or maintain a constant velocity unless acted upon by an external force.
- Inertia is a measure of an object's reluctance to change its motion.
Key Points
- The law applies to all objects, regardless of size or shape.
- It is a fundamental principle in understanding the behavior of objects.
Examples
- A car will maintain its velocity in a straight line unless acted upon by external forces like friction or a turn.
- A bowling ball will continue moving in a straight line until it encounters external forces like friction or a collision.
- A person in a moving car will tend to maintain their motion in the same direction as the car unless acted upon by external forces like the car's brakes or a turn.
Importance
- Newton's First Law is crucial in understanding everyday phenomena like vehicle behavior, motion on inclined planes, and projectile behavior.
- It is essential in fields like engineering, physics, and astronautics.
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Description
Understand the concept of inertia and how it relates to an object's motion, including the tendency to resist changes and the role of external forces.
