Forces Flashcards
1
Q
List the 4 forces.
A
- Weight / Gravity.
- Air Resistance.
- Ground Reaction Force.
- Friction.
2
Q
Define Weight / Gravity.
A
Acts down from the center of mass and pulls the body down to earth.
A Vertical Force.
3
Q
Define Air Resistance.
A
Acts against the horizontal movement as the body moves through air.
A Horizontal Force.
4
Q
Define Ground Reaction Force.
A
Acts upward from the force applied to the ground.
A Vertical Force.
5
Q
Define Friction.
A
Acts forwards in the direction of travel.
6
Q
When does the direction of a force change?
A
When on ice or snow, friction goes backwards.
