Units
This unit is used to measure translational acceleration.
m/s2
This is the rotational equivalent to force.
Torque
This is the acceleration in the horizontal direction.
zero
Newton's first law is formally stated as
An object will remain at rest or in uniform motion in a straight line unless acted upon by an external force.
The rate at which work is done to lift an object from the floor to a shelf at a constant speed.
(mgh)/t
or
Fv
Describe the effect of doubling the mass on the period of a pendulum.
No effect.
This unit is equivalent to a kg-m/s2
Newton
This is the rotational equvalent to impulse.
torque times change in time
or
rotational inertia times change in angular velocity
This is the acceleration rate of a projectile at the very top of its path.
g
or
9.8 m/s2
Newton's second law is formally stated as
The acceleration of an object is dependent upon two variables - the net force acting upon the object and the mass of the object.
This is energy gained as an object accelerates down the street?
1/2 mvf2 - 1/2mvi2
Because of _____, a swinging wrecking ball does not swing forever.
Friction
This unit is for rotaional velocity.
rad/sec
This is how to find the tangential velocity if the angular velocity is known.
omega times the radius
This is the displacement when a rock is thrown upward at + 3m/s off a 10 meter tall building and it takes 4 seconds for the rock to land.
10 meters
The 3rd law is formally stated as
For every action there is an equal and opposite reaction
The change in energy on a force vs distance gragh.
Area under the curve
A mass oscillating on a spring will have a zero acceleration at this point.
Equilibrium (x=0)
This is the unit to measure impulse.
N-s or
kg-m/s
This what happens when rotaional velocity and rotaional acceleration both have the same sign.
rotaional velocity increases
The information that will determine the time it takes a horizontally launched object to reach the ground from the top of a table.
The height of the table
Which type of friction acts on a non moving object?
Static
The change in an object's momentum can be found using this on a force vs time graph.
area bound by the curve
How do you find a full period on the SHM graph?
Crest to crest or trough to trough
This is the unit for work.
Joule
This is frequency multiplied by 2 pi.
angular velocity
This is the speed and direction of a projectile launched upward at 25 m/s, 3 seconds into its flight.
5 m/s downward
When an object sinks to the bottom of a pool, its net force equation is:
The work done to stretch a spring.
1/2 kx2
Which law is associated with SHM?
Hooke's Law