Newton’s First Law
Which of the following situations best illustrates Newton’s First Law of Motion?
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About This Question
- Subject
- physics
- Chapter
- laws of motion
- Topic
- newton’s first law
- Difficulty
- Easy
- Year
- 2025
Solution
Correct Answer:
A coin placed on a card over a glass drops when the card is flicked away
- Newton’s First Law (Law of Inertia): 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.
- Inertia of Rest: This is the tendency of an object to remain in its state of rest.
- Application: When the card is flicked, a horizontal force acts on the card, but not on the coin. Due to its inertia of rest, the coin 'tries' to remain in its original position over the mouth of the glass.
- Result: Once the card is gone, gravity pulls the coin down, and it falls into the glass.
- Other Options: Rocket thrust and falling balls involve net forces and acceleration (Second Law).
This easy difficulty physics question is from the chapter laws of motion, covering the topic of newton’s first law. It appeared in the 2025 exam.
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