Worksheetsreview saeed
Total questions: 18
Worksheet time: 18mins
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
(a)
an echo is an example of sound wave being
reflected
surfed
region of many particles
compressions
rarefaction
region of few particles
rarefaction
compression
energy
an object that block all the light
opaque
transparent
which one is hardest
talc
diamond
quartz
which is opaque
wood
water
glass
window
color of mineral powder is
color
streak
which property describes minerals that break along smooth
surface
hardness
fracture
color
cleavage
which process cause the straw to be broken
reflection
absorption
refraction
which unit is used to measure the volume of sounds
hertz (Hz)
ampere (A)
ohm
decibels (dB)
unlike sound waves, light waves can travel through a
vacum
liquid
solid
gas
technology improves our lifes
false
true
what is science
nothing
study of life
