作者:chris eatough 18 年以前
407
SGCS 7 Science
Year 7 science
pressure
mixtures
matter
Forces
contact / non contact forces
Subtopic
difference between mass and weight
weight differs where you are on earth where mass is constant
wieght is a force, mass is the amount of matter
units of force
newtons
types
air resistance
electrostatic
gravity
buoyancy
magnetic
friction