A-LEVEL PHYSICS: 4.3.4: Projectile Motion (SaveMyExams) Flashcards
(7 cards)
1
Q
projectile:
A
a particle moving freely under gravity, in a 2d plane
2
Q
any object moving through the air experiences ___ ___, which creates a ___ force.
what is this force caused by?
A
air resistance, drag
by friction between the air molecules and the object
3
Q
the drag force acts in the ___ direction to the direction of ___ of the object
A
opposite, motion
4
Q
the horizontal component of drag decreases the horizontal ___ & ___
A
velocity, displacement
5
Q
the vertical component of drag decreases the ___ ___
A
maximum height
6
Q
fluid:
A
liquid or gas
7
Q
2 main factors that affect the motion of an object. explain: (2)
A
-mass: greater mass = greater weight force
-surface area: greater surface area = larger air resistance drag force
