The push or pull that can change the motion of an object
matter
iron
friction
force
a contact force that opposes the motion of an object.
friction
speed
magnet
iron
a noncontact force that pulls masses towards one another
position
gravity
mass
friction
a kind of metal that is magnetic
mass
speed
iron
gold
something that pulls iron and some other metal objects toward it
magnet
silver
gold
iron
the amount of matter in an object. Objects with more matter have more.....
light
brightness
mass
darkness
a hard metal that is made mostly from iron
silver
steel
diamond
gold
the action or process of changing position
dancing
laughing
singing
motion
A roller coaster has ....................
unchangeable speed
no speed
constant speed
variable speed
a plane has a ................
no speed
constant speed
variable speed
changeable speed
