Question

1. Define the following i) Time ii) Time period iii) Oscillation iv) Acceleration v) Deceleration

1 marks per point

Answer 1

i)the indefinite continued progress of existence and events in the past, present, and future regarded as a whole.

ii)The time required by a body exhibitting periodic motion to complete one period is known as the time period. The S.I. unit is second.

iii)movement back and forth in respect to time.

iv)Acceleration is the rate of change of velocity with respect to time.

v)Deceleration is negative acceleration. When a body is decelerating, it means its speed is decreasing speed. An acceleration with a negative also shows that the speed of the body is decreasing.