Balls of equal and unequal mass on strings, separated by a leaf spring.
1N20.30 • A+35+0
Spring with Reaction Weights. Springs between the suspended balls are held compressed by loops of thread. To release the spring, a match is used to burn the thread.
Related Demos
A+35+16
.22 rifle fires vertically, bullet lifts small wood cylinder. A+35+55
Applet: Collision Lab A+35+2
Two people in rolling chairs pushing and pulling A+35+5
Elastic collisions: Seven steel balls roll on a wooden track. A+35+10
Elastic collisions: Five hanging balls and two unequal hanging balls. A+35+17
Ballistic pendulum: Suspended .22 rifle fires into suspended block. A+35+18
Inelastic collisions: Another ballistic pendulum. A+35+20
Three meter airtrack with gliders that rebound elastically, or stick. A+35+25
Plastic pucks on air table. A+35+28
Executive size pool table A+35+30
Mechanical model of a gas: Vibrating balls strike piston on OHP. A+35+35
Airtrack: Long track with two gliders coupled by a spring hoop. A+35+40
Train on circular track moves one way and track moves the other. A+35+45
Film loop: "Colliding freight cars", 2:45 min. A+35+50
Film loop: "Dynamics of a billiard ball", 4:00 min.