review saeed

diamond is a mineral ?

• true

• false

what is energy

• ability to play

• ability to do work

what are types of energy?

• thermal only

• thermal-electrical-light-sound-mechanical

at what volume begin to damage your hearing?

• 10 decibels

• 85 decibels

• 50 decibels

make a word

mudime

an echo is an example of sound wave being

• reflected

• surfed

Tags

NGSS.MS-PS4-2

region of many particles

• compressions

• rarefaction

region of few particles

• rarefaction

• compression

• energy

Tags

NGSS.MS-PS4-2

an object that block all the light

• opaque

• transparent

Tags

NGSS.MS-PS4-2

which one is hardest

• talc

• diamond

• quartz