Class 7 · Science · Medium level · 8 questions
Sound Waves & Echoes: Medium 1
How sound is made, how it travels, and why it comes back to you. In Class 7 Science the topic covers sound comes from vibration, sound needs a medium, speed in different materials and loudness and pitch. This quiz is a step up: the questions ask you to use the ideas as well as recognise them. 8 questions (multiple choice), marked the moment you finish, with the reason for every answer.
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