Practice First Law (law Of Inertia) (3.3.1) - Laws of Motion

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6 sample questions

Question 1.
Define inertia in your own words.
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Think about how an object reacts when no external forces act on it.
Question 2.
What happens to a book lying on a table?
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Consider the absence of forces acting on the book.
3Question 3.
What does Newton's First Law state?
- A body will always move.
- An object in motion stays in motion unless acted upon.
- All objects require force to move.
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Recall the definition of inertia.
4Question 4.
Is it true that a body will remain at rest unless acted upon by an external force?
- True
- False
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Consider the meaning of inertia.
Question 5.
A hockey puck slides across a smooth ice surface and eventually comes to a stop. Explain how this scenario relates to the concept of inertia and forces acting on the puck.
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Consider the forces that act on an object in motion.
Question 6.
In a high-speed car crash, the occupants are thrown forward despite the car stopping. Describe this phenomenon using the law of inertia.
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Relate the concept of inertia to real-life safety scenarios.

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