Flashcards
Semester 1, 1st period, jan15,2015
Flashcards do conjunto (54)
- 1SI units for massKg
- 2units for weightN
- 3SI units for lengthmeters
- 4SI units for timeSeconds
- 5SI units for accelerationm/s^2
- 6SI units for forceNewtons
- 7SI units for momentumN*S or KG*M/S
- 8SI units for work and energyJ or N*M
- 9SI units for powerWatts
- 10object traveling at constant velocity means...constant speed and direction
- 11an object accelerating means...change in direction, increasing speed, slowing down
- 12equation for distance traveled at constant velocityd=vt
- 13equation for linear accelerationa=(Vf-Vi)/t
- 14equation for displacement of accelerating object1/2 a t^2 + Vi t
- 15where was Isaac newton born (and died)England
- 16life span of sir Isaac newton1642-1727
- 17Who was Sir Isaac NewtonPhysicist AND mathematician
- 18What did Sir Isaac newton discoverdiscovered fundamental laws about mechanics, motion, light and gravity
- 19what did sir Isaac newton inventcalculus
- 201st law nicknamesseatbelt law and law of inertia
- 21whats inertiatendency to resist a change in motion
- 22mass is...inertia
- 23weight is...force due to gravity
- 242nd law nicknamebaseball law
- 252nd law equationFnet=ma
- 26if the force increases the acceleration...increases (directly proportional)
- 27the mass increases the acceleration...Decreases (inversely proportional)
- 28by applying constant force on a object, the object will experience...constant acceleration
- 29object experiencing balanced forces will be....at rest or moving at constant velocity
- 30object experiencing unbalanced forces will be....accelerating
- 31terminal velocity of an object means...air resistance and weight are balanced, and it is at constant velocity
- 323rd law nicknamerocket law
- 33what is the 3rd lawevery action has an equal and opposite reaction
- 34whats frictionthe force that opposes the motion of an object
- 35if a system is in equilibrium it means...it has balanced forces
FN=0
A=0 - 36scalars have only a....magnitude
- 37vectors have...magnitude and direction
- 38what method do you use in order to add concurrent force vectorsparallelogram
- 39when you break a vector down into its component parts that process is calledvector resolution
- 40tossing a boll to a friend, the ball is aprojectile
- 41name given to the path of prjectiletrajectory
- 42what kinds of motion does a ball have when you toss itvertical and horizontal
- 43the vertical component of a tossed ball is affected bygravity
- 44p=mv
- 45change in P=m* change in velocity
- 46m* change in velocity=m* (Vf-Vi)
- 47M* (Vf-Vi)=J
- 48J=f*t
- 49f*t=m*(Vf-Vi)
- 50what is the conservation of momentumin any collision or explosion the total amount of momentum before equals the total amount of momentum after
- 51GPE=MGH
- 52KE=1/2*m*v^2
- 53f*d=m*g*d
- 54power=work/time