Everyday examples of inertia you can see for kids.

📚 Quick Study Guide

• 🍎 Inertia is an object's tendency to resist changes in its state of motion.
• 🚗 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.
• ⚽ The more massive an object, the more inertia it has. A bowling ball has more inertia than a soccer ball.
• 🛹 Examples include: a soccer ball staying still until kicked, a car continuing to move even after you take your foot off the gas, and shaking water off your hands.
• 📏 Newton's First Law of Motion is also known as the Law of Inertia.

Practice Quiz

1. Which of the following is the best example of inertia in action?
   1. A: A bird flying in the sky.
   2. B: A book sitting still on a table.
   3. C: A swing moving back and forth.
   4. D: A leaf falling from a tree.
2. Why is it harder to stop a shopping cart full of groceries than an empty one?
   1. A: The full cart has less inertia.
   2. B: The full cart has more inertia.
   3. C: The empty cart has more friction.
   4. D: The empty cart has more momentum.
3. What happens to a glass of water when you suddenly stop a car?
   1. A: The water stays perfectly still.
   2. B: The water spills forward.
   3. C: The water spills backward.
   4. D: The water turns into ice.
4. Which has more inertia: a bicycle or a car?
   1. A: The bicycle.
   2. B: The car.
   3. C: They have the same inertia.
   4. D: It depends on their color.
5. A soccer ball is sitting still on the field. What is needed to get it moving according to the concept of inertia?
   1. A: Nothing, it will eventually move on its own.
   2. B: A force, like a kick.
   3. C: A change in temperature.
   4. D: A change in air pressure.
6. Why do you need to wear a seatbelt in a car?
   1. A: To look cool.
   2. B: To increase the car's speed.
   3. C: To overcome inertia in a sudden stop.
   4. D: To make the car lighter.
7. Imagine you are on a skateboard, and it suddenly stops. What happens to you?
   1. A: You stop instantly with the skateboard.
   2. B: You continue moving forward.
   3. C: You start moving backward.
   4. D: You disappear.