Question

Tina is waiting at the bus stop. She sees and hears an ambulance as it approaches and passes by her. Which two changes in the loudness of the sirens does Tina hear?

Answer 1

When the ambulance approached her the loudness increase and when it pass by , the amplitude of the wave starts to fade away and the loudness decrease

Answer 2

Answer:

The sound becomes louder as the ambulance approaches her

The sound becomes less loud as the ambulance moves away from her, are the two changes in the the loudness of the Siren which Tina would hear.

Explanation: