SCIENCE REVIEWER G1 Q2

What is a pleasant sound?

• Soothing, harmonious, and enjoyable

• Unpleasant

• Dissonant

• Annoying

Give an example of a pleasant sound.

• nails on a chalkboard

• birds chirping

• screaming baby

• car alarm

What is a loud sound?

• A loud sound is a noise that is high in volume and intensity.

• A loud sound is a quiet noise.

• A loud sound is a soft whisper.

• A loud sound is a gentle hum.

Provide an example of a loud sound.

• Silence

• Thunder

• Purr

• Whisper

Why do we enjoy pleasant sounds?

• Pleasant sounds cause headaches

• Pleasant sounds lead to negative emotions

• Pleasant sounds trigger positive emotions in our brain.

• Pleasant sounds make us sad

How can loud sounds be harmful?

• Loud sounds can improve hearing abilities

• Loud sounds can damage the delicate structures in the inner ear, leading to hearing loss or other auditory issues.

• Loud sounds can enhance brain function

• Loud sounds have no impact on auditory health

How can we reduce the volume of loud sounds?

• Wear sunglasses, increase the volume, use a megaphone

• Use ear protection, move away from the source, or use soundproofing materials.

What are some ways to create pleasant sounds?

• Playing dissonant chords on a piano

• Using loud and jarring noises

• Listening to screeching sounds

• Using musical instruments, singing harmoniously, listening to nature sounds, incorporating soothing melodies or rhythms

How does sound energy travel?

• Through a medium in the form of transverse waves

• Through a medium in the form of longitudinal waves

• Through a vacuum

• Through a medium in the form of electromagnetic waves

Explain how sound energy can be converted into other forms of energy.

• Through the process of evaporation and condensation.

• Through photosynthesis and chemical reactions.

• Through processes like transduction and mechanical vibrations.

• By converting it into light energy.