Light & Sound — Answer Key
Part A: Multiple Choice
Circle the best answer for each question.
1. Which drum would make the LOUDEST sound when you hit it hard?
A) A tiny toy drum
B) A big bass drum
C) A paper plate
D) An empty cup
A big bass drum has a large top that shakes a lot and makes louder sound.
2. Which string on a guitar makes the HIGHEST pitch?
A) A thick, loose string
B) A thin, tight string
C) A broken string
D) A soft rubber band
Thin, tight strings vibrate faster, which makes a higher pitch sound.
3. How can you make a whisper louder?
A) Close your mouth
B) Hold your breath
C) Talk with more breath and energy
D) Turn your head
Using more breath shakes the vocal cords harder, making the sound louder.
4. Which object would give the LOWEST sound when tapped?
A) A small bell
B) A tiny triangle
C) A large wooden log
D) A thin wire
Large heavy objects vibrate slowly, which creates a low pitch sound.
Part B: Fill in the Blank
Write the correct answer on each line.
1. Loudness is also called volume.
Volume tells how loud or soft a sound is when we hear it.
2. How high or low a sound is, is called pitch.
Pitch describes whether a sound is high like a whistle or low like a drum.
3. Fast vibrations make a high pitch.
When something shakes very fast, the sound we hear is a high pitch.
4. Slow vibrations make a low pitch.
Slow shakes per second make deep, low pitch sounds.
5. Hitting a drum harder makes a louder sound.
A harder hit shakes the drum top more, sending out a stronger louder sound.