Coefficient of restitution depends on temperature

• C+90+35

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

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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