Calculating velocity typically requires measuring the distance an object travels and the time it takes to travel that distance. Here’s a simple experiment you can conduct to calculate velocity:

Experiment: Rolling Ball Down an Incline

Materials Required:

  1. A small ball (e.g., a marble or a small rubber ball)
  2. A ruler or measuring tape
  3. Stopwatch or timer
  4. Incline surface (e.g., a ramp or a piece of cardboard propped up at one end)


  1. Set up the incline surface by propping it up at one end to create a sloped surface.
  2. Place the ruler or measuring tape along the incline to measure the distance the ball will travel.
  3. Mark the starting point of the ball at the top of the incline.
  4. Release the ball from the starting point and start the stopwatch or timer simultaneously.
  5. Observe and measure the time it takes for the ball to reach the bottom of the incline.
  6. Record the time and the distance the ball traveled.

Calculating Velocity:

Once you have recorded the time and distance, you can calculate the velocity of the ball using the formula:

Physics Concepts:

  • Distance: The distance traveled by the ball is the length of the incline, measured in meters (or any other unit of length).
  • Time: The time taken by the ball to travel the distance is measured in seconds.
  • Velocity: Velocity is the rate of change of distance with respect to time. It tells us how fast an object is moving in a particular direction. In this experiment, velocity is calculated by dividing the distance traveled by the time taken.

By conducting this simple experiment and calculating velocity, students can learn about the relationship between distance, time, and velocity, as well as gain practical experience with measurement and calculation in physics.

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