Grade 9 · Physics
This quiz helps revise “Waves and sound” in Physics for grade 9. It has 25 questions in five categories: Wave Basics, Wave Math, Making Sound, Pitch and Loudness, Echoes and Ranging. Questions get harder as the points go up, from 100 to 500.
The 100- and 200-point questions are open here. The rest show only their first words, and there are no answers: all of that is in the game itself.
What does a wave transfer from its source to other places without transferring matter?
What type of wave needs a material medium in order to travel?
Particles move perpendicular to…
In the gameParticles move parallel to…
In the gameWhat is the point…
In the gameTwelve oscillations occur in 3 s. What is the frequency?
One complete oscillation takes 0.2 s. What is the frequency?
Matching points on neighbouring…
In the gameA wave travels at…
In the gameA source makes 18…
In the game
What must an object do to act as a source of sound?
What is the two-pronged metal instrument that sounds after it is struck called?
Which physical quantity of…
In the gameIn which medium is…
In the gameIn which state of…
In the gameHow does perceived pitch change when the frequency of a sound wave increases?
How does loudness change when the amplitude of a sound wave becomes larger?
A 440 Hz vibration…
In the gameWhat is sound with…
In the gameWhat is sound below…
In the game
What phenomenon makes a sound wave return from a wall and produce an echo?
What underwater system sends sound pulses and receives their echoes to locate objects?
Which flying mammal hunts…
In the gameA pulse from a…
In the gameAn echo from a…
In the gameAll 25 questions and the answers are in the game. Invite your class or friends with a link — guests need no account.
