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# science

p = m x v
distance divided by time velocity (v)
density mass divided by volume
Fa = applied force a force that is applied to an object by another object
Fg = gravitational force the force that attracts a body to the centre of the earth or any other celestial object
Ffr = friction a force that opposes motion when two surfaces are in contact
Fair = air resistance the frictional force air exerts against a moving object
Fn = normal force the reaction force that balances the weight of an object on a surface
Fb = buoyant force the upward force exerted by a fluid that opposes the weight of an object on a surface
t = tension force the force that is transmitted through a string or wire when it is pulled tight by forces acting on the ends
gravitational force newtons
weight a measure of the gravitational pull an object like the earth has for an object near its surface it is also a force, therefore, measured in newtons.
mass a measure of the amount of matter in an object. its SI units are kg. an object can have mass but not weight.
Created by: georgiamackayy