Laws of Motion

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Laws of Motion MCQ & Objective Questions

The "Laws of Motion" are fundamental principles that govern the movement of objects and are crucial for students preparing for exams. Understanding these laws not only enhances conceptual clarity but also helps in scoring better through effective practice. Engaging with MCQs and objective questions on this topic allows students to familiarize themselves with important questions and reinforces their exam preparation.

What You Will Practise Here

  • Newton's First Law of Motion: Concepts and applications
  • Newton's Second Law of Motion: Formula derivation and problem-solving
  • Newton's Third Law of Motion: Action-reaction pairs and examples
  • Inertia: Definition, types, and real-life applications
  • Force and Mass: Understanding the relationship and calculations
  • Friction: Types, factors affecting it, and its implications in motion
  • Applications of Laws of Motion in daily life and technology

Exam Relevance

The topic of "Laws of Motion" is a staple in various examinations including CBSE, State Boards, NEET, and JEE. Students can expect questions that test their understanding of the laws through numerical problems, conceptual queries, and application-based scenarios. Common patterns include direct application of formulas, conceptual explanations, and problem-solving based on real-world situations.

Common Mistakes Students Make

  • Confusing the direction of forces in Newton's Third Law.
  • Misapplying the formula in Newton's Second Law, especially in multi-body problems.
  • Overlooking the effects of friction in motion-related questions.
  • Failing to distinguish between mass and weight in practical scenarios.

FAQs

Question: What are the three Laws of Motion?
Answer: The three Laws of Motion are Newton's First Law (law of inertia), Second Law (F=ma), and Third Law (action-reaction).

Question: How can I effectively prepare for Laws of Motion questions?
Answer: Regular practice of MCQs and understanding the underlying concepts will greatly enhance your preparation.

Start solving practice MCQs on the Laws of Motion today to test your understanding and boost your confidence for upcoming exams!

Q. According to Newton's third law, if you push against a wall, what does the wall do?
  • A. Pushes back with equal force
  • B. Does nothing
  • C. Falls down
  • D. Absorbs the force
Q. According to Newton's third law, if you push against a wall, what happens?
  • A. The wall pushes back with equal force
  • B. The wall does not respond
  • C. You move backward
  • D. The wall collapses
Q. If a 15 kg object is dropped from a height of 20 m, what is its potential energy just before it hits the ground?
  • A. 300 J
  • B. 1500 J
  • C. 600 J
  • D. 1200 J
Q. If an object is in free fall, what is its acceleration due to gravity?
  • A. 9.8 m/s²
  • B. 10 m/s²
  • C. 8.5 m/s²
  • D. 12 m/s²
Q. What is the force required to keep a 2 kg object moving in a circle of radius 1 m at a speed of 3 m/s?
  • A. 6 N
  • B. 9 N
  • C. 3 N
  • D. 12 N
Q. What is the gravitational force between two 10 kg masses separated by 2 meters?
  • A. 0.25 N
  • B. 5 N
  • C. 10 N
  • D. 20 N
Q. What is the momentum of a 10 kg object moving at 3 m/s?
  • A. 30 kg·m/s
  • B. 10 kg·m/s
  • C. 3 kg·m/s
  • D. 0 kg·m/s
Q. What is the momentum of a 3 kg object moving at 4 m/s?
  • A. 12 kg·m/s
  • B. 7 kg·m/s
  • C. 15 kg·m/s
  • D. 10 kg·m/s
Q. What is the work done when a force of 50 N moves an object 3 meters?
  • A. 150 J
  • B. 100 J
  • C. 200 J
  • D. 50 J
Q. What is the work done when a force of 50 N moves an object 4 meters in the direction of the force?
  • A. 100 J
  • B. 200 J
  • C. 150 J
  • D. 50 J
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