Coin inertia, science experiment for children

ByKarthik Kumar D Kon31st Jul 2023, 2023-07-31T18:15:00+05:30
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Coin inertia, science experiment for children

Title: Coin Inertia - Exploring Inertia Experiment

Objective: To investigate the concept of inertia using coins and explore how objects tend to resist changes in motion.


  • Coins of different sizes and denominations
  • Flat surface (table or countertop)
  • Index card or piece of cardboard
  • Optional: Ruler or measuring tape for measuring distances


  1. Begin by discussing the concept of inertia with the children. Explain that inertia is the property of an object to resist changes in its state of motion, whether that is staying at rest or continuing in motion.
  2. Gather the materials required for the experiment.
  3. Place an index card or piece of cardboard on a flat surface. This will serve as the starting point for the coin.
  4. Select a coin and place it on the index card, ensuring it is stationary and not rolling.
  5. Hold the index card firmly on one side, then quickly flick or push the card in the opposite direction, causing the coin to slide off the card and onto the flat surface.
  6. Observe and discuss what happens to the coin. Does it move in a straight line, or does it curve or spin?
  7. Repeat the experiment using different coins, noting any differences in their motion patterns.
  8. Encourage children to experiment with different starting positions and forces applied to the index card. Observe how these variations affect the coin's motion.
  9. Reflect on the observations and discuss the concept of inertia. Ask questions to stimulate critical thinking, such as: Why does the coin tend to stay at rest or resist changes in motion? How does the size or mass of the coin affect its inertia? Does the force applied to the card affect the coin's motion?
  10. Optionally, measure the distances traveled by the coins using a ruler or measuring tape. Compare the distances to observe any patterns or relationships.

Safety Considerations:

  • Be cautious with the flicking or pushing motion to avoid any coins flying off the surface. Ensure the experiment is conducted in a safe and controlled manner.

This experiment allows children to explore the concept of inertia by observing how coins tend to resist changes in motion. It promotes scientific observation, critical thinking, and an understanding of basic physics principles. Enjoy the exploration of coin inertia with this engaging experiment.

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