How would you find a mass of a rolling marble?
To find the mass of a rolling marble, you can follow these steps:
1. Measure the diameter of the marble: Use a ruler or caliper to measure the diameter of the marble. Make sure to measure the widest point on the marble, typically from one side to the opposite side.
2. Calculate the volume of the marble: The volume of a sphere, which the marble resembles, can be calculated using the formula V = (4/3) * π * r³, where V is the volume and r is the radius of the marble. Since the radius is half of the diameter, divide the diameter by 2 to get the radius.
3. Weigh the marble: Use an accurate scale to measure the weight of the marble. Place the marble on the scale and make sure to record the weight in the appropriate unit (e.g., grams or ounces).
4. Use the density formula: The density of an object can be calculated using the formula density = mass / volume. Rearranging this formula, we can determine the mass as mass = density * volume.
5. Calculate the mass: Substitute the recorded density of the marble into the formula obtained in step 4, along with the volume calculated in step 2. Multiply the density by the volume to find the mass of the rolling marble.
By following these steps, you can find the mass of a rolling marble.