Quiz 1 prep 2 unit 1 lesson 1 sec. tearm

1- The amplitude of simple pendulum is...................... of a complete vibration.

• a- four times

• b-a quarter

• c- a half

• d- double

2-If the periodic time of an oscillating body is 0.1 sec ., So the number of complete oscillations in one minute is....................................................

• a- 10

• b- 600

• c- 120

• d- 60

3- The result of multiplying the frequency of an oscillating body by its periodic time equals .............................

• a-1/2

• b- 1/4

• c- 1/3

• d- 1

4- A simple pendulum makes 540 complete oscillations in a minute , so its frequency is ..........................Hz

• a- 3

• b- 6

• c- 9

• d-12

5- A vibrating body makes 1/4 complete vibration in 1/64 sec., its frequency is 6 Hz.

• a- true

• b- false

6- The oscillatory motion is regularly repeated through equal intervals of time.

• a- true

• b- false

7- The oscillating body of frequency 360 Hz makes 180 complete oscillations in half a minute .

• a- true

• b- false

8- The oscillation of the tuning fork is an example of periodic motion.

• a- true

• b- false

9- The simple harmonic motion is a form of oscillatory motion.

• a- true

• b- false

10 - The kinetic energy of the simple pendulum decreases by increasing its velocity.

• a- true

• b- false