Cara Membaca Hasil Ukur Jangka Sorong | Pengukuran | Fisika Kelas VII dan X

Introduction

This tutorial will guide you through reading measurements using a caliper, an essential tool in physics and various fields that require precise measurement. Understanding how to accurately read a caliper is crucial for students in middle and high school physics classes.

Step 1: Understanding the Caliper

• A caliper is a measuring tool used to measure the distance between two opposite sides of an object.
• It has a precision of 0.1 mm, making it suitable for various applications in science and engineering.

Familiarize yourself with the main parts of the caliper

• Main scale: The fixed scale that shows whole units.
• Vernier scale: The sliding scale that allows for more precise measurements.

Step 2: Preparing to Measure

• Ensure the caliper is clean and free of debris before use.
• Open the caliper slightly and place it around the object you want to measure.
• Make sure the object is held firmly between the jaws for an accurate reading.

Step 3: Taking the Measurement

1. Read the main scale:

   • Look at the main scale to find the last whole number before the zero of the vernier scale.
   • Note this value as it represents the main measurement.

2. Read the vernier scale:

   • Look at the vernier scale to find the line that aligns perfectly with any line on the main scale.
   • The value indicated by this line will be your additional measurement.

3. Combine both readings:

   • Add the value from the main scale to the value from the vernier scale to get the total measurement.

Step 4: Calculating the Final Measurement

The final measurement is a simple addition

• Final Measurement = Main Scale Reading + Vernier Scale Reading

For example, if the main scale reads 5 mm and the vernier scale reads 0.3 mm, the final measurement will be

• 5 mm + 0.3 mm = 5.3 mm

Step 5: Common Pitfalls to Avoid

• Ensure the caliper is not tilted while measuring, as this can lead to inaccurate readings.
• Double-check that the zero on the vernier scale aligns with the zero on the main scale when the jaws are closed.
• Avoid parallax error by looking straight at the measurement scale, not at an angle.

Conclusion

Reading a caliper is a valuable skill in both academic and practical applications. By understanding the components of the caliper, preparing correctly, and following the steps for measurement, you can achieve accurate readings. Practice using a caliper with different objects to enhance your measuring skills further.