Question 1 (2 points) The magnitude of the restoring force that acts on a 1.0-kg pendulum when it is displaced 20 from equilibrium is N. (Give your answer with the correct number of significant digits and do not include units in your answer) AJ Question 2 (2 points) The magnitude of the restoring force that acts on a 1.0-kg pendulum when it is displaced 10.0 from equilibrium is N. (Give your answer with the correct number of significant digits and do not include units in your answer) Question 3 (2 points) 0n earth the period of a 1.50-m pendulum is _s. (Give your answer with the correct number of significant digits and do not include units in your answer) Question 4 (2 points) On the hypothetical planet Xeon, a pendulum with a length of 95.0 cm swings with a frequency of 1.50 Hz. The acceleration due to gravity on Xeon is _m/s2. (Give your answer with the correct number of significant digits and do not include units in your answer) AA pendulumni is swinging back and for LE. Which of the following factors affect the period of the pendulum: I. length Il. mass Ill. angle of release IV. accleratingdue to gravity I only O Ill and IV Ol and IV Ol and III I I I Compared to audible sound, the frequency of earthquake waves are generally very Every oscillating system has a frequency, which is determined by the physical properties of the object. The periodic push that a child exerts on the swing must match the frequency of the swing. Engineers build energy systems into buildings so that an earthquake will not destroy them easily. forced resonant high low damping A25.0-kg child in Red Deer pumps herself on a swing when she kicks upward on the downswing, thus changing the distance from the pivot point to her centre of gravity from 2.40 m to 2.28 m. Question 2 (2 points) The resonant frequency of her swing before the kick is: _ Hz. (Give your answer with the correct number of sig digs Question 3 (2 points) The resonant frequency of her swing after the kick is: _ Hz. (Give your answer with the correct number of sig digs Question 1 (3 points) Match the definitions on the left with the terms on the right. Terms will only be used once. wave front reflected wave wave wave train medium incident wave A disturbance that moves outwards from its point of origin, transferring energy through the medium An imaginary line that joins all points reached by the wave at the same instant The material through which the wave travels A wave front moving from the point of origin toward a barrier A wave front moving away from a barrier A series of waves forming a continuous series of crests and troughs Question 2 (2 points) Sound waves travel through seawater at about 1500m/s. The frequency that would generate a wavelength of 1.55 m in seawater is _ Hz. (Give your answer with the correct number of sig digs and do not include units) AJ Question 3 (2 points) A speaker system generates sound waves at a frequency of 2200 Hz. If the wave speed in air is 325 mls, the wavelength is _m. (Give your answer with the correct number of sig digs and do not include units) [ ex Question 4 (1 point) For a mechanical wave, the medium can be defined as O the average distance between two crests. O the average amplitude of the wave. 0 the average distance between a crest and a trough. O the material in which the wave travels. Question 5 (1 point) A wave is made in a Slinky spring with a wavelength of 50.0 cm and a frequency of 5.50 Hz. The speed of the wave is a.bc m/s. Record the values of a.bcin the box below. Do not include units. Your