Paper 1 May/June 2022 PHYSICS (0625/11 ) IGCSE
Cambridge
IGCSE
Physics (0625)
شهریور
2022
شامل مباحث:
تعداد سوالات: 40
سطح دشواری:
متوسط
شروع:
آزاد
پایان:
آزاد
مدت پاسخگویی:
45 دقیقه

پیش نمایش صفحه اول فایل
A fire alarm is not loud enough and the pitch is too low. An engineer adjusts the alarm so that it produces a louder note of a higher pitch.
What effect does this have on the amplitude and on the frequency of the sound?