Bin Contents: Rings & Strings, Center Pin, 4 50-gram Mass Hangers. (Not shown but included: a torpedo-style Level.)

The Mass Hanger can be disassembled if the masses (typically the 200-gram masses) cannot slide through the hook-end.

Obtain the Force Table, 3 Legs, and 4 Pulleys (A, B, C, D).

Take any 3 Legs; if they won’t fit, just take another; notice the blue tips are for balancing the Force Table.

Take an A and a B Pulley.

Take a C and a D Pulley.

Screw the legs to the table.

The top of the table contains the angle-scale used to set/determine positions. Use the outer scale as it’s more accurate.

Attach the pulleys to the table.

Attach the pulley as indicated.

The white line used to measure the angle is only visible if the pulley is attached correctly as indicated.

Attach the Center Pin and the Rings & Strings.

At equilibrium the central ring does not move.

Your drawer contains all the items you will need – two plastic containers full of masses; you will be given a torpedo-style level so do not use your drawer’s level for this experiment. Also, do not use the 2 500-gram masses for this experiment.

You will find the rulers and triangles at the front – right side of the lab.

Around the same area you will find protractors.

If required, you will find drawing compasses.

We have centimeter graph paper available for students; do not use the yellow – semi-log paper.