9.1 Momentum And Impulse Flashcards
1
Q
What did newton realise was needed to change the velocity of an object
A
A force
2
Q
What is momentum defined as
A
The mass of the object x velocity
3
Q
When do newtons laws not apply
A
Inside an atom where the rules of quantum physics apply
In strong gravitational fields where Einsteins theories of relativity apply
4
Q
Momentum =
A
mass x velocity
5
Q
Symbol for momentum
A
P
6
Q
What quantity is momentum
A
Vector
The direction is the same as the direction of the objects velocity
7
Q
Newton’s first law
A
An object remains at rest or in uniform motion unless acted on by a force
8
Q
A
9
Q
If an objects momentum is constant what is the resultant force acting on it
A
There js no resultant force
10
Q
A
