PROPERTIES OF MATTER

1R10.10 STRETCHING SPRING (HOOKE'S LAW)
1R40.30 BOUNCING BALLS (COEFFICIENT OF RESTITUTION)



1R10.10 Stretching A Spring

Hang weights on spring to vary stretch. Demonstrate stretch proportional to force (weight) for a given spring (Hooke's Law).

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Setup Requirements: Assembled as neeeded.

 

Equations: Hooke's Law F(spring) = -kx

 

Safety Issues: none



1R40.30 Coefficient of Restitution

Bounce/No Bounce: Balls look the same. One bounces. One does not. Use when talking about coefficient of restitution or energy conversion (PE>KE> heat and sound).

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Setup Requirements: Off the Shelf

 

Equations: N/A

 

Safety Issues: Being hit by bouncing ball.