GCSE Physics – Waves – 2 – Exam Style Questions with Answers

20 waves are sent out in 4 seconds.

The frequency of the wave is __________.

A dolphin can produce sounds with a frequency of more than 20 kHz.

These sounds are called______.

Galileo also used his telescope to observe the __________ of Jupiter ;

His observations provided evidence to support the _______ model of the Solar System.

Geologists use sound waves from a small explosion to search for oil underground.

The sounds waves are called_______.

A small explosion is triggered at the Earth's surface.

The waves reflect back from the top of the oil field.

Suggest why the waves are reflected from the oil field.