Examples of Newton's Laws of Motion in Everyday Life

📚 Quick Study Guide

• 🍎 Newton's First Law (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 a force.
• ⚽ Newton's Second Law (F=ma): 🏋️‍♀️ The acceleration of an object is directly proportional to the net force acting on the object, is in the same direction as the net force, and is inversely proportional to the mass of the object. The formula is expressed as: $F = ma$ where $F$ is force, $m$ is mass, and $a$ is acceleration.
• 🚀 Newton's Third Law (Action-Reaction): 🤝 For every action, there is an equal and opposite reaction. If object A exerts a force on object B, then object B exerts an equal and opposite force on object A.

🧪 Practice Quiz

1. Which of Newton's Laws explains why you need to wear a seatbelt in a car?
1. Newton's Zeroth Law
2. Newton's First Law
3. Newton's Second Law
4. Newton's Third Law


2. A soccer ball is kicked with a force of 10N and accelerates at 2 m/s². What is the mass of the ball?
1. 2 kg
2. 5 kg
3. 10 kg
4. 20 kg


3. When you jump, you push down on the Earth, and the Earth pushes you up. Which law explains this?
1. Newton's First Law
2. Newton's Second Law
3. Newton's Third Law
4. Law of Universal Gravitation


4. What happens to the acceleration of an object if the force applied to it doubles, assuming the mass stays the same?
1. It halves.
2. It stays the same.
3. It doubles.
4. It quadruples.


5. A book is resting on a table. Which of Newton's Laws best describes why the book remains at rest?
1. Newton's First Law
2. Newton's Second Law
3. Newton's Third Law
4. Law of Conservation of Energy


6. You are pushing a shopping cart. If you increase the mass inside the cart, but apply the same force, what happens to the cart's acceleration?
1. It increases.
2. It decreases.
3. It stays the same.
4. It becomes zero.


7. A rocket launching into space is an example of which of Newton's Laws?
1. Newton's First Law
2. Newton's Second Law
3. Newton's Third Law
4. Law of Universal Gravitation