Question

only 5 general questions answers for ch-5 science ncert class 7​

Answer 1

Answer:

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

"travel through space and time"

Answer 2

Answer:

Oscillation of simple pendulum.

Vibrating strings of musical instruments is a mechanical example of oscillatory motion.

Movement of spring.

Alternating current is an electrical example of oscillatory motion.

Series of oscillations are seen in cosmological model.