Determent the how does each factor affects the angular acceleration (Radius of the torque pulley, Mass of the hanging mass, mass of the disk)

Do the measurement as shown in step 1 .

Set up the equipment as below.

1. One hanging mass only, with a small torque pulley and top steel disk only.
 collect the data as the following picture.

2. Two hanging mass, with a small torque pulley and top steel disk only.
 collect the data as the following picture.

3. Three times of the hanging mass, with a small torque pulley and top steel disk only.
 collect the data as the following picture.

4.One hanging mass only, with a large torque pulley and top steel disk only.
 collect the data as the following picture.

5.One hanging mass only, with a large torque pulley and both top and bottom are steel disks .
 collect the data as the following picture.

After analyzed the data. We can tell the angular acceleration is doubled as the hanging mass doubled, Tirple by three times of the hanging mass.

The angular acceleration is doubled when the radius of the torque pulley is doubled.

The angular acceleration is decreased when the disk change from steel to aluminum.

The angular acceleration is decreased when the spinning disk change from only top to both top and bottom.