Physics Cheat Sheet Flashcards
Would cover equal amounts of distance in EQUAL time intervals
Velocity
Would cover equal amounts of distance in VARYING time intervals
Acceleration
Projectiles move with a constant acceleration d/t gravity in what direction
Vertical
Projectiles move with a constant VELOCITY d/t gravity in what direction
Horizontal
- Motionless state
- yield a net force of zero
Static equilibrium
Force that acts to resist motion of objects
Friction force
Support force that acts peroendicular
Normal force
Combination of all the forces that act on an object
Net force
Describe Newtons 1st, 2nd, 3rd law
1st- object at rest stays at rest
2nd - f=ma relationship between an objects mass and the amt of force needed to accelerate it
3rd - action reaction
Product of force on an object and the distance thru wc the object is moved
Work
Work done per unit of time
Power
Work done is equal to the change in energy
Work energy theorem
FACTS
- If the force is PERPENDICULAR to the direction of motion, then no work is done
- the total amount of energy before and after some interaction is constant
- Product of mass and velocity
- inertia in motion
Momentum
Change in momentum
Impulse
Elastic & Inelastic collision
Both of the momentum is conserved
For elastic - no kinetic lost
Inelastic - kinetic e is lost, dt heat deformation etc
Impulse
Ft = m🔺v (momentum is a vector)
One object breaking into more objects
Explosion
0= mv + mv
One object striking and joining to the other
Hit & stick
M1v1 + m2v2 = (m1+m2) v3
One object striking and bouncing off of the other
Hit and rebound
M1v1 + m2v2 = m1v3 + m2v4
FACTS
In momentum,
In the X direction, the moments add up to the original momentum b4 the collision
In the Y direction, the moments cancel out since there was no momentum
Center seeking force
Centripetal
Outward pointing force for an object moving in a circular path.
Seems to be pushed outward but it is pulled inward in order to maintain circular path
Centrifugal force
Distance from the axis of rotation to the location where the force is applied
Lever arm
Force to attract surfaced molecular to make the surface area of fluid as smaller as possible
Surface tension
Every particle passing a particular point moves exactly along the smooth patg followed by particles passing that point early
Laminar flow
Irregular flow
Turbulent flow
