P8-Forces in Action Flashcards
1
Q
What is Displacement?
A
Distance in a given direction
2
Q
What is a vector quantity?
A
A physical quantity that is given magnitude and direction
3
Q
What is a Scalar quantity?
A
A physical quantity that has magnitude but no direction
4
Q
How can a Vector quantity be represented?
A
By an arrow in the direction of the vector and of length in proportion to the magnitude of the vector
5
Q
What is Newtons third law?
A
When two objects interact with eachother, they exert equal and opposite forces on each other.
6
Q
What is the unit of force?
A
Newton (N)
7
Q
What is Newtons first law?
A
If the forces on an object are balanced, the resultant force on an object is zero.
8
Q
What is the center of mass?
A
Where the mass of an object is thought to be concentrated
