Answer: solution in the picture!!
Grade8 Science Q1 week 4
Lesson: Sounds Pivot4A
1. 358 m/s
2. 330.4 m/s
3. When the temperature increases, the speed of sound increases as well.
4.The speed of sound is directly affected by the temperature of the medium.
Explanation:
The speed of sound in dry air, which is at 0 0C, is around 331 m/s. This
speed, however, gets faster when the temperature is increased with the presence of
water vapor. In warmer air, or air with moisture, molecules move faster and bump
into each other more often, so sound can travel faster. The speed of sound
increases by 0.60 m/s with every increase of 1C0. This can be expressed as:
