1.3 mass and weight Flashcards
1
Q
define mass and its SI unit
A
a measure of the quantity of matter in an object at rest relative to an observer
unit kilogram (kg)
2
Q
define weight and its SI unit
A
a gravitational force on an object that has mass
unit Newton (N)
3
Q
define inertia
A
the mass of an object resists change from its state
of rest or motion
4
Q
define gravitational field strength and gravity field
A
GPE is force per unit mass
Gravitational field is a region in which a mass experiences a force due to gravitational attraction
g is also know as the acceleration of free fall
5
Q
equation of gravitational field strength
A
weight = mass × g
W = mg
