Sound

Sounds are produced when an object…

• stuck

• stops

• vibrates

• pushes

Our … vibrates when we talk and sing.

• vocal cords

• Leg

• Mouth

• Mouth

Sound travels fastest in...

• solids

• liquids

• gases

• air

Tags

NGSS.MS-PS4-2

Sound is a form of? 

• energy
• pitch
• volume

Tags

NGSS.MS-PS4-1

A place where no sound exists is...

• in the air

• under water

• space

• all of the above

__________ means to move back and forth quickly.

• Pitch
• Amplitude
• Vibration
• Echo

Sound waves travel the SLOWEST through _____________.

• gases
• solids
• liquids

Tags

NGSS.MS-PS4-1

NGSS.MS-PS4-2

The volume of a sound is measured in units called ________

• decibels
• liters
• sound waves
• inches per minute

You stand outside a room that has the doors and windows closed. Why can you still hear sounds made inside the room?

• Vibrations are absorbed in the doors and windows
• Vibrations are reflected inside the room
• Vibrations travel through the door and the window
• Vibrations echo in the room

Tags

NGSS.MS-PS4-2

Why do we see lightning before we hear the thunder?

• Our eyes trick us
• Light travels faster than sound
• they're two separate things