この本の別のエディションでよく使われている100語。
again
along
always
another
asked
atom
atomic
away
ball
between
body
cannot
case
classical
come
course
different
direction
distance
down
effects
electric
electrons
energy
even
example
fact
first
forces
get
given
go
going
hand
however
know
large
lecture
light
long
look
looking
man
mass
maud
may
mean
molecules
motion
moving
mr
must
negative
neutrons
new
notions
now
nuclear
nuclei
nucleus
number
oh
old
ordinary
part
particles
physicist
physics
place
point
process
professor
protons
quantum
quite
rather
result
say
see
should
show
small
space
state
still
surface
system
take
theory
things
think
thus
time
tompkins
trajectory
two
universe
velocity
world
yes