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Science 5P
Sound
Question | Answer |
---|---|
What is a wave? | A disturbance that transmits energy |
What are water waves? | Disturbances that transmit energy |
What are sound waves? | Vibrations traveling in waves |
How do musical instruments make sound? | By vibrating the molecules of the air |
What causes sound vibrations? | The back-and-forth movements of an object |
How do compression waves move? | By pushing molecules together and then spreading them apart |
How does your brain interpret sound? | By detecting vibrations in your ears |
What are two ways to measure sound? | Pitch and volume |
What is pitch? | The highness or lowness of a sound |
What produces high-pitched sounds? | A flute |
What is volume? | The loudness of a sound |
What is the softest sound that humans can hear? | 0 dB |
How long can a person listen to noise at 100 decibels without ear protection? | 15 minutes |