Exam - Sound

What is sound?

• It is a kind of energy that moves in sand.

• It is a kind of energy that moves in waves.

• It is a kind of water that moves in waves.

• It is a kind of food that moves.

We can classify sounds like this:

• Big, cute and small.

• Small, high and luminous.

• Loud, soft, high and low.

• Low, red, soft and high.

Sounds waves move throught three states:

• Gas, liquid and solid.

• Dark, liquid and clear.

• Natural, air and solid.

• Water light, liquid and air.

Sound is produced when an object:

• Travel.

• Body.

• Hear.

• Vibrates.

The organ that we use to hearing is:

• Ear.

• Nose.

• Mouth.

• Tongue.

What is a sound wave?

• It is a wave which particles vibrate to and fro.

• It is a periodic disturbance in a medium that tranfers energy from one particle to another.

• It is a wave that needs travel.

Write the correct word, according to the image.

• Loud.

• Soft.

Write the correct word, according to the image.

• Loud.

• Soft.

Write the correct word, according to the image.

• Loud.

• Soft.

Write the correct word, according to the image.

• Loud.

• Soft.