If there is an explosion on Moon, will it be visible or audible or both on earth? Explain. [3 MARKS]
Condition for Visible : 1.5 Marks
Condition for Audible : 1.5 Marks
An explosion on Moon would be visible from Earth, since the light rays can travel from Moon to Earth without requiring any medium.
The same explosion will not be audible because sound needs a medium to travel. Since there is vacuum between Earth and Moon, the sound would not be able to travel.