Unit 2 Flashcards
1
Q
The four fundamental forces in order of strength (weakest to strongest)
A
Gravitational
Weak nuclear
Electro magnetic
Sting nuclear
2
Q
Kinematics
A
The study of motion
3
Q
The 6 forces
A
Applied force
Tension
Normal force
Friction
Air resistance
Force of gravity
4
Q
Newton’s first law
A
If the net external force is zero the object will remain at rest or continue to move at constant velocity
5
Q
Newton’s second law
A
If the net external force on an object is not zero the object will accelerate in the direction of the net force
Fnet = ma
6
Q
Newton’s third law
A
For ever action force there is a simultaneous reaction force that is equal in magnitude but opposite in direction
7
Q
Universal grativitation equation
A
Fg = Gm1m2 /r^2
G = 6.67 x 10^ -11
