Question

it is very urgent guys help me​

Answer 1

Answer:

Actually I saw you reposting it.

Explanation:

Hey mate, I guess I know the answer.

1.Periodic Motion - Gap between two events

2.Time - Twenty-four hours

3.Pendulum - A heavy mass suspended from string

4.Solar day - Movement of Earth on its axis

5.Zig-Zag Graph - Non uniform Speed