Write Yes if the statement is correct or No if it is not. Write your
answers on a separate sheet of paper.
1. The loudness of sound refers to how strong the sound seems to us
when it reaches our ears.
2. The volume of a sound depends on the strength of vibrations.
3. The sound is heard louder if we are near the source and then gradually
fades or becomes softer as we move away from it.
4. A sound wave travels at different speed through different media.
5. Sounds, like lights, also bounce back when they hit a smooth surface.
6. We can hear an echo if we are too close to a big hard wall. The sound we
make bounces back very fast and mixes with the original sound.
7. We always hear an echo even when the original sound is too weak.
8. Car blowing its horn and the seemingly endless barking of a dog are
examples of noise.
9. When the vibrations are fast, you hear a loud sound. When the vibrations
are slow, we create a soft sound.
10. Sound travels in solids, in liquids, and in gases. Sound travels the
fastest through solid, then liquid, and slowest in gas.

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