GCSE Physics Required Practical 7: Investigating Force and Acceleration with a Glide Track and Pulley System

In GCSE Physics, conducting practical experiments is an essential component of learning and understanding scientific concepts. "Required Practical 7" focuses on investigating how changing the force applied to an object affects its acceleration. In this tutorial, we'll guide you through the steps of this experiment using a glide track and pulley system.

Materials Needed

• Glide track

• Pulley

• Glider (small cart)

• Mass hanger

• Masses of varying weights

• Stopwatch

• Measuring tape or ruler

Experiment Setup

1. Set Up the Glide Track: Place the glide track on a level surface, ensuring it's straight and stable.

2. Attach the Pulley: Attach the pulley to one end of the glide track. Ensure it's securely fixed and allows the rope to move freely.

3. Attach the Glider: Attach the glider to the other end of the glide track.

4. Attach the Mass Hanger: Hang the mass hanger from the pulley using the rope.

5. Add Weights: Add masses of varying weights to the mass hanger. Start with a small mass and increase it gradually.

Procedure

1. Measuring the Starting Point: Position the glider at one end of the glide track. Use the measuring tape or ruler to note its initial position.

2. Releasing the Glider: Gently release the glider, allowing it to move along the glide track. Observe its motion and record the time it takes to travel a specific distance.

3. Analysing Data: Repeat the experiment multiple times, each time with a different mass on the hanger. Record the distances traveled and the corresponding times for each trial.

Data Collection and Analysis

1. Calculating Acceleration: For each trial, calculate the acceleration of the glider using the equation:

   Acceleration = 2 * (Distance / Time²)

2. Plotting a Graph: Create a graph with acceleration on the y-axis and force (mass × gravity) on the x-axis. The graph should show a linear relationship between force and acceleration.

Conclusion

By analysing the data and graph, you should observe that the acceleration of the glider is directly proportional to the force applied to it. This confirms Newton's Second Law of Motion, which states that the force applied to an object is directly proportional to its acceleration.

Safety Considerations

• Ensure the glide track is secure and level to prevent accidents.

• Handle masses carefully to avoid injuries.

• Keep the experiment area clear to prevent obstacles.

Summary

Required Practical 7 involves investigating how changing the force applied to an object affects its acceleration using a glide track and pulley system. By collecting and analysing data, you'll gain insights into the relationship between force and acceleration, confirming fundamental principles of physics. This practical experience enhances your understanding of Newton's Second Law and the dynamics of objects in motion.

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