Quiz
What do people do when they share information with others?
Communicate
They measure
They vibrate
They Communicate
What happens when something vibrates? more than one answer
It moves back and forth quickly
It can make sound
It can make materials move
all three
What do people do when they communicate with sound?
They vibrate
They write down data
They share information
They share information
John rings a bell to wake his sister in another room. What does this show?
Life would be different without technology
Sound can be used to communicate over distances.
People need many tools to communicate
Sound can be used to communicate over distances.
Beth thinks that materials that vibrate can make sound. Which test should she do to see this?
She should listen to sounds in her neighborhood
She should boil a pot of water
She should pluck a guitar string
She should pluck a guitar string
What did people do before they had cell phones? 2 answers.
They wrote letters
They used different kinds of phones
They did not communicate
They wrote letters
They used different kinds of phones
Whick sound has a high pitch?
a growling dog
a squeaky wheel
a purring cat
a squeaky wheel
If people no longer had email, what would they most likely do?
Give up on technology
Stop communicating
Write letters
Write letters
Gerard wants to do a test to show that sound can move materials.
place sand on a drum and bang a pot next to it
pour a cup of sand into a large pot
put sand in a shaker and shake it
place sand on a drum and bang a pot next to it
What would happen if you plucked the string of a guitar in the picture? 2 answers
It would vibrate
It would make a sound
It would make other materials in the room move
it would vibrate
It would make a sound