Waves questions | form four Physics
Find Waves examination questions, form four Physics in acaproso.com
| # | Question |
|---|---|
| 1 | What are ultrasonic vibrations? Short answers |
| 2 | An FM radio station broadcasts electromagnetic waves at a frequency of 125 MHz. The radio waves have a wavelength of 2.4 metres. calculate the speed of the radio waves. Short answers |
| 3 | Gamma ray bursters are objects in the universe that emit pulses of gamma rays with high energies. The frequency of the most energetic bursts has been measured at around Short answers |
| 4 | Define an echo. Short answers |
| 5 | Name any two factors that affect the speed of sound in air. Short answers |
| 6 | Explain briefly why sound produced in a hall with many people is heard more clearly Short answers |
| 7 | A person standing 99 m from the foot of a mountain claps his hands and hears an echo Short answers |
| 8 | Explain what is meant by ‘beats’ as applied to sound Short answers |
| 9 | Briefly explain how beats are formed. Short answers |
| 10 | A vibrating string is sounded with a 288 Hz tuning fork and 3 beats are counted per Short answers |
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