Calculated Mass of the Meter Stick Torque Lab
Calculating the mass of a meter stick using torque is a fundamental physics experiment. It helps understand the principles of torque, moment of inertia, and the relationship between force, mass, and acceleration.
- Enter the length of the meter stick in meters.
- Enter the mass of the meter stick in kilograms.
- Enter the angle in degrees at which the meter stick is held.
- Click the “Calculate” button.
The formula for torque (τ) is τ = r × F, where r is the distance from the axis of rotation to the point where the force is applied, and F is the force. In this case, r is the length of the meter stick, and F is the weight of the meter stick (mg).
| Method | Result (kg) |
|---|---|
| Torque Lab | 0.25 |
| Direct Measurement | 0.245 |
| Angle (degrees) | Angular Acceleration (rad/s²) |
|---|---|
| 30 | 1.23 |
| 60 | 2.46 |
| 90 | 3.69 |
- Always ensure the meter stick is held horizontally for accurate measurements.
- Use a stopwatch to measure the time it takes for the meter stick to rotate through a known angle for calculating angular acceleration.
What is the moment of inertia of a meter stick?
The moment of inertia of a meter stick is approximately 0.00635 kg·m².
How do I calculate the angular acceleration?
Angular acceleration (α) can be calculated using the formula α = τ / I, where τ is the torque and I is the moment of inertia.