This PhysCast is going to look at standing waves on a stretched string. A 45 gram string is tightly stretched and fixed firmly at each end. The tension in the string is 78 N, and it vibrates with its 3rd harmonic at 120 Hz. How long is the string?

The following PhysCast deals with the situation involving this unusual looking wheel. A constant horizontal force of 10 N is applied to a wheel of mass 10 kg and radius 0.3 m. The wheel rolls smoothly on a horizontal surface, and the acceleration of its centre of mass has magnitude of 0.60 ms -2. a) What is the frictional force on the wheel? b) What is the rotational inertia of the wheel about the rotation axis through its centre of mass?

This PhysCast will analyse a motion problem using conservation of energy. A 1.25 kg ball is attached to the ground by a spring with k = 22 N/m and upstretched length of 0.55 m. The ball is thrown straight upwards, being released when it is 1.0 m above the ground, moving at 12.0 m/s. How fast is the ball moving when it is 2.0 m above the ground?

This question deals with a wave which is travelling along a string.

This PhysCast is about oscillatory motion. Two identical springs of spring constant 7580 Nm-1 are attached to a block of mass 0.295 kg. What is the frequency of oscillation on a frictionless floor?

This PhysCast is going to examine an example of using the first law of thermodynamics to analyse a cyclic process.

This PhysCast will look at a problem involving a merry go round with some people jumping onto it.

This PhysCast is going to look at a problem involving static equilibrium. A 60 kg child sits at the end of a 2.4 metre board supported by a p;ivot, 80 cm away, and a scale at the other end. If the scale reads zero, what is the mass of the board.

This PhysCast is going to look at a very commonly used example in collision physics - the Newton's Cradle.

This question is about rolling motion and conservation of energy. A solid sphere and a silid disc with identical masses and radii roll down a slope without slipping. Using energy considerations, which has the greatest velocity when it reaches the bottom of the slope.