Topic 1- Subject 3: Forces Due To Gravity Flashcards
1
Q
What is force measured in?
A
Newtons (N)
2
Q
What is Newtons law in relation to gravity.
A
F(g)=mg
Force due to gravity is equal to mass multiplied by the gravitational constant of earth (-9.8m/s)
3
Q
Define weight.
A
A measure of force due to gravity measured in newtons (N).
4
Q
Define mass.
A
Amount of matter in an object measured in kilograms (kg).
5
Q
What is the difference between weight and mass?
A
Weight is dependent on the gravitational constant of the planet whereas mass is universal.
6
Q
Define friction.
A
The resistance to motion of a surface moving along another.
7
Q
Define tension.
A
The pulling force transmitted along a rope, string, cable etc. on an object.
8
Q
Define normal force.
A
The force acting on an object perpendicular to the surface.
