Forces And Motion Flashcards
1
Q
What is Archimedes Principle?
A
The upthrust exerted on an object immersed in a fluid, whether fully or partially submerged = the weight of the fluid that the object displaces
2
Q
What is the principle of moments?
A
States that for an object to be in rotational equilibrium, the sum of clockwise moments = sum of anti-clockwise moments
3
Q
Drag
A
Friction caused by a fluid
4
Q
Free-body diagram
A
Shows all the forces acting on an object, but not the forces the object exerts on its surroundings
5
Q
Mean drift velocity
A
Avg. displacement of e along w wire per second
Slow net movement towards terminal supply ∵ constant collisions
6
Q
Moment
A
Turning effect of a force around a turning point
7
Q
Couple
A
A pair of forced equal and acting in antiparallel to each other for
