Ball on string mounts on blackboard and pivots on lower rod.

3A10.10 • A+5+0

diagram for demo

The Simple Pendulum. The 'bob' (ball) of the simple pendulum is released at 'A', and a rod catches the string at 'B'. It is observed that regardless of the position of 'B', the bob always rises to the level of 'A'. Note: The chalkboards are magnetic. The switch on the clamp rotates an inner magnet, bringing the magnet closer to or farther away from the mounting surface ... attaching or releasing the clamp.

gallery

Related Demos

3A10.10 Simple pendulum: Ball on a string. 3A10.30 Torsion pendulum with removable weights. 3A10.14 Four pendulums on rod: Same mass, different lengths. 3A10.17 Four pendulums on rod: Same length, different masses. 3A10.17 Twelve pendulums: same mass, different lengths
A+5+21 Object rolls uphill, center of mass rolls downhill A+5+22 Potential energy of spring imparted to ball on ramp A+5+10 Equal path lengths ball race. A+5+15 Brachistochrone: Three balls falling along different trajectories. A+5+20 Bowling ball pendulum swings back to nose. A+5+25 Film loop: "Conservation of energy: Pole vault", 3:55 min. A+5+26 Java applet: Conservation of energy skate park, movable tracks A+5+27 Java Applet: Conservation of energy skate park, various graphical representations A+5+28 Java Applet: Racing balls along different tracks A+5+29 Java Applet: "Mass-spring oscillator with optional energy graphs" A+5+5 The Trebuchet