Chapter Name: Force
Activity Name: Effect of force on change of the state of motion of an object and it’s direction in Force
The experiment aims to demonstrate the effect of force on changing the state of motion of an object and its direction using a football. By applying force to the football, we observe how it responds to the force, either by starting to move, changing its direction, or stopping.
Step by Step Procedure:
- Place the football on the ground, ensuring it is at rest.
- Kick the football in a particular direction (Fig-16a) to set it in motion.
- Observe whether the ball starts moving in the direction of the kick.
- Kick the moving ball again in the same direction (Fig-16b).
- Observe the result of the second kick on the ball’s motion.
- Place your hand or leg against the ball to stop it or change its direction.
- Note down your observations for each step.
- The ball remains at rest until someone kicks it.
- After kicking the ball, it starts moving in the direction of the kick.
- When kicked again in the same direction, its speed may increase, or its direction may slightly alter.
- When a hand or leg is placed against the ball, it may stop its motion or change its direction based on the applied force.
- Ensure the experiment is conducted in a safe area to avoid accidents or collisions with other objects or people.
- Do not kick the ball with excessive force to prevent damage or injury.
- Use appropriate safety gear, if necessary.
Lesson Learnt from Experiment:
This experiment highlights the fundamental principle of Newton’s First Law of Motion, which states that an object at rest will remain at rest, and an object in motion will remain in motion at a constant velocity unless acted upon by an external force. It demonstrates how applying force to an object can change its state of motion, either by setting it in motion, altering its direction, or bringing it to a stop.
This concept is applicable to various real-life situations where force plays a role in changing an object’s motion, such as pushing a car, throwing a ball, or stopping a rolling bicycle.