HESI Physics

Review for HE SI physi

14 cards   |   Total Attempts: 182
  

Cards In This Set

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VELOCITY
Speed in a specific direction
Equation for solving VELOCITY
V(f)= final velocity, v(1)= initial velocity v(f) +v(1) / 2 final velocity+initial velocity/2
Equation for solving AVERAGE SPEED
Distance/Time
ACCELERATION
The change in velocity over a period of time
Equation for solving ACCELERATION
V(f)= final velocity, v(i)= initial velocity, A(t)= change in time Velocity/Time= V(f)- v(i)/ A(t) Velocity/Time- final vel- initial vel/ change in time
Equation for MOTION OF OBJECT velocity, distance
V(f)= final velocity, v(i)= initial velocity a= acceleration rate, d= distance v(f) squared=v(i) squared +2ad d= 1/2a*tsquared + v(i)t v(f)=v(i) + at
Gravity velocity equation
9.8 m/sec squared for every second object falls
Equation for PROJECTILE MOTION
Object displaying two types of motion- horizontal and verticle (off a cliff- out and down)
Equation for HORIZONTAL MOTION
D(x)= horizontal distance, v(x)= velocity t= time, x=along verticle axis d(x)= v(x)t
Equation for VERTICLE MOTION
V(f)= final velocity, v(i)= initial velocity a= acceleration, d= distance, t= time v(f) squared= v(i) squared + 2ad d= 1/2a *tsquared + v(i)t v(f)= v(i) +at
PROJECTILE MOTION solving
Solve for horizontal and verticle components before solving for time
Equation for solving PROJECTILE MOTION
V(i)= initial velocity, v(h)= horizontal component of original velocity v(v)= vertical component of original velocity v(h)= v(i)(cos 0) v(v)= v(i)(sin 0)
Newtons Laws on Motion- 1,2
#1- a body at rest will remain at rest, a body in motion will remain in motion unless acted upon by an unbalanced force. #2-an unbalanced force will cause accelerated- this acceleration is directly proportional to the unbalanced force. F=ka F= force, a= acceleration, k= constant of proportionality
Newtons 2nd Law of MOTION
The contant of proportionality (k) is equal to the mass of the object. F=ma f= force, m= mass, a= acceleration