Physics: Gravitation & Sound
Physics : Gravitation & Sound
Q: Acceleration due to gravity (g)?
Ans: 9.8 m/s²
Q: What is mass ?
Ans: Quantity of matter
Q: What is weight ?
Ans: Force of gravity on an object
Q: What is echo ?
Ans: Reflected sound
Q: Sound can't travel through ?
Ans: Vacuum