1D15.20 – High road low road
Although the total potential energy converted to kinetic energy is the same for each ball, the ball on the “low road” has a higher velocity for longer, and will thus reach the end first.
Jan Vuckovic
3A20.10 – Mass on a spring
This demonstration illustrates a harmonic oscillator through masses on springs.
7B10.19 – Grating Spectrometer
This demonstration illustrates different spectra from a variety of sources. It can be used to explain atomic excitation and de-excitation, in astronomy or in optics.
3B22.10 – Melde’s String Vibrator
This demonstration illustrates harmonics and standing waves on a string. This could be accompanied by calculations on the board, using measurements made on-the-spot.
1N30.10 – Newton’s Cradle
This demonstration illustrates mechanical energy conservation in collisions. The number of balls that move is equal to the number of balls released, which shows the energy is conserved.
1R10.10 – Hooke’s Law
This demonstration shows Hooke’s law, in this case for the extension of a spring. Knowing that the force applied to the spring is directly proportional to the extension caused by that force, we can find a value for the constant of proportionality that relates these quantities.
1M40.20 – Loop the loop
This demonstration illustrates energy conservation in an object undergoing rotation, as well as centripetal force. The forces and energy types involved are (translational and rotational) kinetic energy, (gravitational) potential energy and centripetal and normal forces.
1F30.20 – Chain Fountain/Mould effect
This demonstration illustrates forces and is a good way to show a counterintuitive (if not fully understood) phenomenon.
1D60.15 – Ballistic Cart
This demonstration illustrates projectile motion. Specifically, it describes how a projectile launched vertically with a certain horizontal velocity will keep said velocity and describe a parabola in its flight
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