KSA Science Grade 4 Practice Questions - Kentucky Summative Assessment Science - Grade 4 Exam

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When a student strikes a drum, the drumhead vibrates rapidly. How does sound energy travel from the drum to a listener's ear across the room?

The drumhead vibrates air particles, passing sound energy outward as waves. Air particles travel in a straight line from the drum directly into the listener's ear. Electrical currents flow through the air from the drum to the ear. Heat rays carry the sound vibrations through empty space.

Correct Answer:

The drumhead vibrates air particles, passing sound energy outward as waves.

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