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