**Simple harmonic motion Question and answer 1**

what is damped oscillation?

**Answer**: Damped oscillation is one in which the amplitude gradually decrease with time and finally come to stop or zero.

**Simple harmonic motion Question and answer ** **2**

Is a body moving with constant speed in a circular path undergoing acceleration?

**Answer**: No it not undergoing acceleration, because the association is rate of change velocity but here the velocity is constant

**Simple harmonic motion Question and answer 3**

A 10kg mass is suspended from the end of a spring and released. If the spring oscillates in simple harmonic motion with a speed of 0.5s, find the energy given to the 10 kg mass if the amplitude of the oscillation is 2cm.

Answer: solution, using

Where m=mass suspended and k= elastic constant

Squaring the both side we have

For energy use

where x = the amplitude=2cm=0.02m

**Simple harmonic motion Question and answer 4**

3. State the formula used in calculating period in simple pendulum and in loaded spiral spring performing simple harmonic oscillation

**Answer: **

**Simple harmonic motion Question and answer 5**

what is the condition of acceleration of body performing simple harmonic motion?

**Answer**: Acceleration of a body performing simple harmonic motion is directed toward the fixed point and proportional to the distance from the fixed point.

**Simple harmonic motion Question and answer 6**

The period of a simple pendulum x is 1.5s. What is the period of a simple pendulum y which makes 500 vibration in the time it takes x to make 400 vibrations?

**Answer**: 1.5s = 400 vibration

?s = 500 vibration , this implies that

**Simple harmonic motion Question and answer 7**

What is resonance?

Answer: Resonance is a phenomenon which occurs whenever a particular body or a system is set to oscillation at its own natural frequency as a result of impulses or signals received from some other system or body which is vibrating with the same frequency

** Simple harmonic motion Question and answer 8**

What is the relationship between period and frequency?

**Answer:** the relationship is that the period is reciprocal of frequency, that is

T =1/F or F=1/T

**Simple harmonic motion Question and answer ****9**

Name one example of resonance

**Answer**: A rattling windows when a aeroplane passes overhead

**Simple harmonic motion Question and answer 10**

A pendulum has a period of 4.2s, Calculate length of the pendulum ( g=9.8m/S^{2})

Answer:

Square both side

Make L the subject of the formula

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