A torsional pendulum exhibits rotational periodic motion. You can create one by hanging some weight from a cord, and then rotating the weight. The cord becomes twisted, generating a torsion force, that will cause the weight to rotate in the oppopsite direction. Thus, a periodic rotation movement is generated.
A tortional pendulum exhibits rotational periodic motion
periodic
Accelerated motion.
Both. Periodic motion refers to any motion that repeats itself periodically. The oscillatory motion exhibited by swinging of arms is one type of periodic motion. Orbital motion of a planet is another type of periodic motion. The motion of a spring is another type, etc.
Simple harmonic motion, In mechanics and physics, is a type of periodic motion where the restoring force is directly proportional to the displacement. A good example of this is a pendulum.
A swinging pendulum demonstrates primarily two types of energy - kinetic energy when the pendulum is in motion, and potential energy - based on how high it is above the mid-point of the swing. If not for friction, a pendulum would continue to swing forever, with the sum of the kinetic and potential energy remaining constant but the distribution between the two constantly changing as the pendulum moved through its swings.
periodic
Accelerated motion.
Simple harmonic motion
Non uniform
Both. Periodic motion refers to any motion that repeats itself periodically. The oscillatory motion exhibited by swinging of arms is one type of periodic motion. Orbital motion of a planet is another type of periodic motion. The motion of a spring is another type, etc.
Simple harmonic motion, In mechanics and physics, is a type of periodic motion where the restoring force is directly proportional to the displacement. A good example of this is a pendulum.
A swinging pendulum demonstrates primarily two types of energy - kinetic energy when the pendulum is in motion, and potential energy - based on how high it is above the mid-point of the swing. If not for friction, a pendulum would continue to swing forever, with the sum of the kinetic and potential energy remaining constant but the distribution between the two constantly changing as the pendulum moved through its swings.
Foucault's Pendulum
Foucault's Pendulum
If by motion you mean velocity it is non uniform, because the velocity is changing due the acceleration of gravity slowing it down to zero. Then at the maximum height motion is reversed and it accelerates downward back to its original speed but in the opposite direction.
Bilateral symmetry :)
A matchbox is a cuboid or hexahedron.