# Newton's Second Law

## I2-42: FALLING CANDLE

Purpose: Demonstrate how a flame burns in the absence of normal convection.

## G1-36: MASS ON SPRING WITH FORCE MEASUREMENT

Purpose: Display the time dependence of the force of a mass oscillating on a spring.

## G1-18: PENDULUM WITH FORCE SCALE

Purpose: Show the tension in the string exerted by a swinging pendulum.

## C4-61: ACCELERATION ON A SCALE

Purpose: Illustrate forces in an accelerating system.

## C4-54: WEIGHTLESSNESS IN FREE FALL - MAGNET AND KEEPER

Purpose: Illustrate weightlessness in free fall.

## C4-51: WEIGHTLESSNESS IN FREE FALL - MASS IN BEAKER

Purpose: Demonstrate weightlessness in free fall.

## C4-43: TERMINAL VELOCITY - STACKED COFFEE FILTERS

Purpose: Illustrate terminal velocity quantitatively.

## C4-42: TERMINAL VELOCITY - FEATHER

Purpose: Illustrate terminal velocity.

## C4-41: TERMINAL VELOCITY - BOTTLE IN TUBE

Purpose: An easily observable terminal velocity experiment.

## C4-32: FREE FALL IN VACUUM - DISK AND FEATHER

Purpose: Demonstrate that bodies of extremely different densities fall with equal acceleration in the absence of air friction.

## C4-31: AIR TRACK - THE ACCELERATION OF GRAVITY

Purpose: Experimentally determine the acceleration of gravity.

## C4-23: ATWOOD MACHINE WITH HEAVY PULLEY

Purpose: Illustrate the affect of a heavy pulley on the Atwood Machine.

## C4-22: HORIZONTAL ATWOOD MACHINE

Purpose: Demonstrate the Horizontal Atwood Machine quantitatively.

## C4-15: HELIUM BALLOON IN ACCELERATED BOX

Purpose: Illustrate the affect of density on acceleration in a counterintuitive way.

## C4-14: AIR TRACK - ACCELEROMETER

Purpose: Demonstrate the behavior of a liquid accelerometer.

## C4-13: ACCELEROMETER ON ROTATOR

Purpose: Show that the surface of a rotating liquid assumes a parabolic shape.

## C4-12: ACCELEROMETER ON INCLINED PLANE

Purpose: Illustrate the behavior of a liquid accelerometer accelerating down an inclined plane.

## C4-11: ACCELEROMETER - BALL IN WATER

Purpose: Demonstrate the direction of acceleration for both linear and circular cases.

## C4-03: ACCELERATION BY ITERATED BLOWS

Purpose: Illustrate the numerical technique by which a computer carries out integration of the equation a = F/m.

## C4-01: AIR TRACK - NEWTON'S SECOND LAW

Purpose: Demonstrate F = ma.
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