Explanation of Activity 8.3 in Chapter 8 - Motion

Activity 8.3 in Chapter 8 - Motion involves the use of a ball and a stopwatch to measure the time taken for the ball to fall from different heights. The aim of this activity is to help students understand the relationship between the height from which an object falls and the time it takes to reach the ground.

Measuring the Time Taken for the Ball to Fall

To measure the time taken for the ball to fall, the following steps should be followed:

1. Hold the ball at a certain height above the ground.
2. Start the stopwatch as soon as you release the ball.
3. Stop the stopwatch as soon as the ball hits the ground.
4. Record the time taken for the ball to fall.

Repeat these steps for different heights and record the time taken for the ball to fall from each height.

Analysing the Data

Once the data has been collected, students can use it to plot a graph of height against time. This will help them to see the relationship between the two variables.

From the graph, students will be able to observe that the time taken for the ball to fall increases as the height from which it falls increases. This is because the ball has to travel a greater distance as the height increases, and therefore takes longer to reach the ground.

Conclusion

Activity 8.3 in Chapter 8 - Motion is a simple but effective way to help students understand the relationship between the height from which an object falls and the time it takes to reach the ground. By measuring the time taken for a ball to fall from different heights and analysing the data, students can gain a better understanding of this fundamental concept in physics.

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