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Questions and Answers
When you pull the bandana off the table, which bottle tipped off?
Bottle C
Which bottle is the sturdiest and did not move much?
Bottle A
Which of the three bottles has the greatest mass than the rest?
Bottle A
Which bottle has the greatest inertia?
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Based on this activity, how can you relate the inertia of the bottle with its mass? More mass: ______.
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According to Newton's second law of motion, acceleration is inversely proportional to mass.
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What is the law of acceleration?
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Study Notes
Law of Inertia
- Newton’s First Law of Motion: An object remains at rest or in uniform motion unless acted upon by an external net force.
- Inertia: The resistance of an object to changes in its state of motion.
Activity 1: Magic or Inertia?
- Bottle C tipped off the table when the bandana was pulled.
- Bottle A was the sturdiest and experienced minimal movement.
- Bottle A had the greatest mass compared to the other bottles.
- Bottle A also exhibited the greatest inertia due to its mass.
- Inertia correlates with mass: greater mass results in greater inertia.
Newton’s Second Law of Motion
- States that acceleration of an object is directly proportional to the net force acting on it and inversely proportional to its mass.
- Acceleration is defined as the rate of change of velocity over time.
- As net force increases, acceleration increases; as mass increases, acceleration decreases.
- When mass decreases, acceleration increases; this relationship exemplifies the law of acceleration.
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Description
Explore the concept of inertia through an engaging activity that demonstrates Newton's first law of motion. Answer questions about motion and resistance to change, and discover which objects are more resistant to movement under various conditions.
