M3 Forces In Action Flashcards
1
Q
Define mass
A
The amount of matter in an object.
2
Q
Define weight
A
A force experienced on a mass due to gravity
3
Q
Define centre of mass
A
The point at which the weight acts through on an object
4
Q
Define normal contact force
A
The reactive force a surface exerts on an object when that object is exerting a force on it
5
Q
Define tension
A
The force that happens on a string when it is pulled taut against an object
6
Q
Define friction
A
A force that acts in the opposite direction to motion slowing down a moving object
7
Q
Define upthrust
A
The force experienced by an object when it is fully or partially submerged in water
8
Q
What is a free-body diagram?
A
A diagram that shows a single body and all of the forces acting on it
9
Q
Define net force
A
The sum of all the force acting on it
