Sound Science Year 4

Which of the following is a property of sound?

• sound can be destroyed

• sound can be reflected

• sound travels in all directions

Tags

NGSS.MS-PS4-1

NGSS.MS-PS4-2

Aaron is in his classroom which is on the third floor. However, she can hear the teacher talking to the pupils one floor below. How can this situation occur?

• The teacher is using magnifying glass to overcome her limitation

• sound is absorbed by objects around the classroom

• voices echoes and travels in all directions

Tags

NGSS.MS-PS4-2

Why is the vehicle giving out sound while it was being driven?

• Giving out sound to entertain the public

• Telling the public to give way during an emergency

• Attracting attention from people in the surrounding area

Tags

NGSS.MS-PS3-5

What is the long term effect of our ears are frequently exposed to extremely loud sounds

• our ears will be sensitive to changes in voices

• our eardrums will be damaged

• we will have problems in speaking

Which of the following steps can reduce sound pollution?

• Installing a fence around the house

• using sponge as sound absorbing material

• placing loud speakers in open spaces

Tags

NGSS.MS-PS4-2

which of the following is not an application of sound reflection?

• sonar

• Echo in fish

• Radar

Tags

NGSS.MS-PS4-2

Sound___________ in all directions

• is absorbed

• travels

Sound is produced by __________________________

• vibration

• refraction

Tags

NGSS.MS-PS4-1

There are various uses of sounds in daily life such as ___________________

• an alarm clock

• a mirror

Extremely loud sound can be ____________________

• beneficial

• harmful