Momentum Flashcards
1
Q
What is momentum?
A
A product of mass and velocity
P = MV
CONSTANT
2
Q
Is momentum constant?
A
YES
3
Q
How does a change in momentum occur?
A
As a result of a change in velocity, as mass is also constant (P=MV)
This will happen through acceleration and deceleration - through an EXTERNAL force
4
Q
What are acceleration and deceleration defined as?
A
The rate of change of velocity
5
Q
Define inertia
A
An objects resistance to change its state of motion
6
Q
What is the state of motion?
A
It can be both stationary and moving
7
Q
What happens to inertia as mass increases?
A
It increases
8
Q
How can you change an objects state of motion?
A
By applying an external force
9
Q
Give an example of an object with inertia
A
Rugby props = big therefore a bigger external force is required to overcome their inertia.
