Physics Lab FInal
Launch speed "v0" equation is
sqrt R^2g/2H
x=
R
fx=
Fcosθ
If a completely elastic collision takes place, during the collision, what is conserved?
energy, mechanical energy, and momentum is conserved
What are the units for the period of a pendulum from the equation above?
s
The frictional force that holds an object in place is called ______ friction.
static
To find the slope: second step
side of your triangle (y axis #/y axis length)
What principles can you use to find the speed of the block at the bas of the incline?
Kinematics, conservation of mechanical energy
The frictional force that slows an object down while in motion is called ______ friction.
Kinetic and dynamic
Magnitude equation is
Magnitude = √x component^2+y component^2
Which of the following quantities are scalars
Mass, speed, distance
A specific pendulum has a period of T, given by the equation above. IF the angle is increased from 2 degrees to 4 degrees, the period will
Remain the same
A specific pendulum has a period of T, given by the equation above. IF the mass of the pendulum, m, is decreased, the period will
Remain the same
m can be the
Slope
If an inelastic collision takes place, during the collision, what is conserved?
energy and momentum is conserved
To find static friction you use
Fs/Fn
fy=
Fsinθ
Vi means
Initial Velocity
Direction equation is
tan^-1(y comp/x comp)
Conservation of mechanical energy
1/2(mb+mp)v^2
gravity=
9.8m/s^2
The coefficient of static friction is always _______ the coefficient of kinetic friction.
Greater than
A quantity that has only a magnitude with proper units is called a
Scalar
Vf means
Final Velocity
To find the slope: first step
bottom of your triangle (x axis #/x axis length)
When you don't have "a" you use what formula?
deltax=1/2(v+v0)t
When you don't have "v" you use what formula?
deltax=v0t+1/2at^2
When you don't have "v" you use what formula?
deltax=vt-1/2at^2
Static friction symbol is
fs
T is considered to be the
period
When you don't have "deltax" you use what formula?
v=v0+at
When you don't have "t" you use what formula?
v^2=v0^2+2a(deltax)
Use the principle of conservation of mechanical energy to find the speed of the block at the base of the incline. v=______m/s
3.4
v can mean
velocity or speed
Which of the following quantities are vectors
weight, velocity, and displacement
To find the slope: third step
what you found for y/what you found for x
L=
x+h
Experimental acceleration due to gravity formula
(2pi/slope)^2
Formula for % error
(Exp Value - Acc. Value)/(Acc. Value) x 100
% difference formula
(difference)/average X100
the formula of a period
T=2pi sqrt L/g
"a" can also mean
Velocity average
Vave means
Average velocity
A specific pendulum has a period of T, given by the equation above. IF the pendulum is moved from the earth where the g is 9/8 m/s2, to Jupiter where it is 26.0 m/s2, the period of the pendulum will
Decrease
A specific pendulum has a period of T, given by the equation above. If the length of the string, L, is increased, the period will
Increase
A quantity that has both a magnitude with proper units as well as a directions is called a
Vector
Suppose that block m (.050kg), sometime after reaching the base of the incline, undergoes a completely inelastic collision with the stationary block, M (.075kg). Use the principle of linear momentum and your response from the previous question to determine the common speed of the blocks just after collision. (carry the answer to one decimal place)
1.4
The coefficient of friction can be zero, meaning there is no friction between the two surfaces.
False
When finding the magnitude of the sum of two vectors, you can directly add the magnitudes of the two vectors.
False
If the force applied on an object is greater than the force of kinetic friction the object will travel with ________ velocity.
Increasing