If the length of a simple pendulum is doubled, its period will   (a) halve  (b) double  (c) remain the same  (d) increase by a factor of square root of 2  (e) decrease by a factor of square root of 2

A pendulum oscillates is started with an amplitude of 00 = 5.0°. Its e(t) graph is shown at the top of the figure below. If the same pendulum is started at an amplitude of 0o = 10.0°, which curve best describes the motion of the pendulum? 15 50505 100 10 -5 50505 10 15 10 -5 ? ܟ ܘ ܟ ܘ ܩ 5 -5 -10 50505100 -5 MVY original oscillation XXXXXX 02 (b) @o w 4 6 time (s) @ (f) 8 (f) 10

1) A 0.1 kg object oscillates as a simple harmonic motion along the x -axis with a frequency f = 3.185 Hz. At a position x1, the object has a kinetic energy of 0.7 J and a potential energy 0.3 J. The amplitude of oscillation, A, is: (a) 0.12 m (b)0.22 m (c) 0.31 m (d)0.42 m 2) A block of mass m is attached to a spring with force constant, k and oscillate at a frequency f. If the mass is changed to m' = m/2, and the spring force is changed to k' = 2k, then the new frequency f' of the oscillation would be, (a) f' = 2f (b)f' = f (c) f' = f/2 (d)f' = 4f %3D

Each of five pendulums has a bob of mass m suspended from a string of length L. Rank them in order of their frequency for small-amplitude oscillations, greatest to smallest.   (a) m = 300 g, L = 1.10 m (b) m = 330 g, L = 1.10 m (c) m = 330 g, L = 1.00 m (d) m = 330 g, L = 1.21 m (e) m = 300 g, L = 1.21 m