Math
Write 312 in expanded form
300+ 10+ 2
energy
a copy or likeness of something
image
In the number 896,403,157 what number is in the ten millions place?
9
555 + 266
821
to measure distances under water
sonar
a curved piece of clear material that that refracts light waves
convex lens
the metric unit of work is
joule
In the number 876,403,264 what place is the zero in?
ten thousandths
80 + ___ = 140
60
is thick in the middle and thin at the edges
lens
_____ uses sound waves to study organs inside the body
Ultrasound
____ measures the intensity of sound
decibel
50 x 70
3500
potential energy
____ equals one frequency cycle per second
Hertz
Energy in motion
kinetic energy
the force applied to a machine by the user
effort force
49/ 8
6.125
Work=
(the equation)
force x distance
Light is made up of tiny bundles of energy called____
photons
States that energy cannot be created or destroyed
law of conservation of energy
Sounds are made when matter _____ and _____
moves quickly back and forth
vibrates