Impulse Flashcards
1
Q
What is impulse?
A
The length of time a force is applied to an object or the body
2
Q
What does impulse relate to?
A
A change in momentum that occurs as a consequence
3
Q
What is the formula for impulse?
A
Impulse = force x time
4
Q
What is impulse equal to?
A
Impulse is equal to a change in momentum
5
Q
If an individual or object is accelerating what kind of impulse is it?
A
Positive impulse
6
Q
If an individual or object is decelerating what kind of impulse is it?
A
Negative impulse
7
Q
When is a positive impulse gained in sprinting?
A
Through the push phase of the stride
8
Q
When is a negative impulse gained in sprinting?
A
Generated by footfall where the foot lands to provide a braking action
9
Q
What are the 3 things to write on a Force Time graph?
A
- Type of impulse
- Net impulse
- What velocity - whether there is acceleration or deceleration or runner is at a constant
