U1 L1 Science 2nd term Prep.2 0 U1 L1 Science 2nd term Prep.2 U1 L1 Science 2nd term Prep.2 1 / 22 Put true or false:Simple pendulum is an example of periodic motion true false 2 / 22 Put true or false:Multiplying periodic time by frequency equals unity true false 3 / 22 Choose:The number of amplitudes in one complete oscillations is ................... 1 2 3 4 4 / 22 Choose:Periodic time of an oscillating object its frequency is 0.4 Hz is ................ 0.4 4 2.5 0.5 5 / 22 Choose:The frequency of of an oscillating that makes 5 complete oscillations in one second is ................ 2 5 6 10 6 / 22 Choose:Periodic time is the time of .................... oscillation(s) one complete 1/4 1/5 1/2 7 / 22 put true or false:As the amplitude of a vibrating body is doubled , the intensity of sound increases four times True False 8 / 22 Choose:The distance ............... expresses amplitude ab 0.5ab 2ab ac 9 / 22 Put true or false:The unit of frequency is joule True False 10 / 22 Put true or false:Rotary bee motion is a periodic motion True False 11 / 22 Put true or false:Periodic time increases by increasing frequency True False 12 / 22 Put true or false:If the time of one amplitude is one second, the time of a complete oscillation is 4 seconds True False 13 / 22 put true or false:The swing is an example of periodic motion . True False 14 / 22 put true or false:The oscillatory motion is regularly repeated through equal intervals of time . True False 15 / 22 put true or false:The frequency of the oscillating body is the reciprocal of the periodic motion . True False 16 / 22 Choose:When an oscillating body makes 360 complete oscillations in 2 minutes, then its frequency equals ..................Hz 3 12 120 17 / 22 Choose:The result of multiplying periodic time and frequency equals................(1 - 2- 0.5 - ) 1/2 2 1 0 18 / 22 Choose:The number of complete oscillations made in one second is called ................ periodic time frequency wave length speed 19 / 22 Choose:All the following represents oscillatory motion, except ................ Motion of a string motion of a tuning fork motion of bike simple pendulum motion 20 / 22 choose:5- A simple pendulum makes 540 complete oscillations in a minute , so its frequency is............. Hz(3 - 6 - 9 - 12) 6 9 12 54 21 / 22 choose:3- If the periodic time of an oscillating body is 0.1 sec , so the frequency is ........... 60 120 360 10 22 / 22 choose:1- The maximum displacement made by the oscilling body away from its original position is........................ amplitude periodic time frequency complete oscillation نتيجتك هي اظهر المزيد