8.1 Force and acceleration Flashcards
1
Q
What is newtons first law of motion?
A
» Objects either stay at rest or moves with constant velocity unless acted on by a force
2
Q
What are the 2 factors if an object is moving at constant velocity?
A
» Acted on by no forces
» Forces acting on it are balanced
3
Q
What is newtons second law equation?
A
» F = ma
4
Q
What is a tip for F?
A
» F is the resultant force
5
Q
What is weight equal to?
A
» mg
6
Q
What is the value of g and what is it?
A
» Force of gravity per unit mass
» 9.81N/Kg
7
Q
What are both inertia and mass?
A
» Synonymous - the same
8
Q
What is inertia?
A
» Tendency for on an object to stay in rest or in constant accleration
» Resitance to change of motion
