Sound Unit 6 Science Year 4

Multiple Choice

Which of the following is NOT a way sound can be produced?

• Knocking

• Bowing

• Plucking

• Painting

Poll

Have you ever wondered how sound is created?

• Yes

• No

Multiple Choice

Which of the following statements about sound is correct?

• Sound is created when something vibrates.

• Sound can only travel through water.

• Sound cannot travel through air.

• Sound is only heard by animals.

Multiple Choice

Which of the following is an example of sound reflection?

• An echo in a canyon

• A guitar string vibrating

• A bird singing

• A drum being hit

Multiple Choice

What happens when sound hits a surface and bounces back?

• It creates an echo.

• It disappears completely.

• It becomes louder.

• It changes color.

Multiple Choice

Explain how sonar uses sound to find things underwater.

• Sonar uses light waves to illuminate objects underwater.
• Sonar detects objects by sending electrical signals through water.
• Sonar relies on magnetic fields to locate underwater items.
• Sonar uses sound waves to detect and locate objects underwater by measuring the time it takes for the sound waves to return after bouncing off the objects.

Open Ended

Can you list some examples of sound reflection that you have observed in your daily life?