sound

What is sound?

Sound is energy produced from vibrations that you hear.

What is pitch?

Pitch is how high or low a sound is and depends on the speed of the vibration.

Rapid movement back and forth motion of an object is called___________________.

vibration

What is communication?

how living things give information to one another

Which object uses sound to communicate?

A. letter

b. walkie talkie

c. flashlight

d. marker

b. walkie talkie

Sound travels through material (air, solids, water) called _______________

matter

How is sound produced on a guitar?

After you pluck the strings on the guitar, the strings vibrate, and the air particles will also vibrate producing sound.

How do you change the pitch on a guitar?

The shorter the string, the higher the pitch. You can also tighten and loosen the strings.

__________________is the loudness of a sound and depends on the strength of the sound vibrations

volume

How do you change the volume on a drum?

When you use more strength to hit the drum, you produce a louder sound. When you use less strength to hit the drum you produce a softer sound.

____________________ is how fast something is moving.

speed

Students want to make a device that sends a signal using both light and sound. Which two items will be most useful for making this signaling device?

1. Pencil and chair

2. Flashlight and tuning fork

3. Construction paper and paper plate

flashlight and tuning fork

Ethan is investigating how to produce a sound. He taps a metal fork with a metal spoon. What will most likely happen?

1. The fork vibrates and makes a sound.

2. The fork does not vibrate or make a sound.

3. The fork vibrates but does not make a sound.

4. The fork does not vibrate but does make a sound.

1. the fork vibrates and makes a sound

Adam is playing outside. He wants his brother to come outside and play with him. Adam

bangs on his drum to signal his brother inside the house. What did Adam’s device use to communicate information?

1. Wind

2. Heat

3. Light

4. Sound

4. sound

 

A

A student is trying to get her friend’s attention from across the room. The teacher left a whole set of supplies in the middle of the table. What can the student do to communicate with her friend using LIGHT?

1. The student should pick up a white piece of paper and wave it in the air until light reflects from the paper to the student.

2. The student should use a mirror and use the sun shining in from the window to reflect the sun to the student across the room.

3. The student should flick a rubber band across the top of a cardboard box to produce vibrations to communicate. 

4. The student should pick up a metal tin and hit it with a plastic spoon over and over.

2. the students should use a mirror and use the sun shining in from the window to reflect the sun to the student across the room

Students are going camping and are creating a signal sound to use whenever they want their friends to come find them. Which of the following can the students do?

1. The students should use mirrors to reflect light across the campsite.

2. The students should create a campfire to send smoke signals.

3. The students should use flashlights and point them at the sky.

4. The students should use whistles made out of clay.

4. the students should use whistles made out of clay