Coefficient of restitution depends on temperature

• C+90+35

diagram for demo

Two seemingly identical balls are bounced in front of students, and one bounces much higher than the other. Both balls are cooled in an ice bath and both bounce to a similar (much lower) height.

Related Demos

C+90+0 Elasticity: Balls bouncing on steel or glass cylinder. C+90+5 Breaking point of a wire is measured on a spring scale. C+90+10 Young's modulus of elasticity: Weight stretches wire. C+90+15 Shear: Stack of masonite squares. C+90+16 Shear: Foam block. C+90+20 Viscosity set: Pistons in oil and water-filled glass tubes. C+90+25 Prince Rupert's Drops. C+90+30 Applet: Microwaves C+90+35 Applet: Molecules and Light