Torque Notes and Practice Set
Notes:
Torque, moment or moment of force is the tendency of a force to rotate an
object about an axis, fulcrum, or pivot. Just as a force is a push or a pull, a
torque can be thought of as a twist to an object. Mathematicall
Circular Motion and Gravitation Practice Sets
Centripetal Acceleration
Notes:
Consider an object moving in a circle of radius r with constant angular
velocity. The tangential speed is constant, but the direction of the
tangential velocity vector changes
Heat of Phase Change Notes and Practice Set
NOTES:
Transitions between solid, liquid, and gaseous phases typically involve
large amounts of energy compared to the specific heat.
If heat were added at a constant rate to a mass of ice to take it through i
Overcoming Friction Notes and Practice Set
NOTES:
Friction is the force resisting the relative motion of solid surfaces, fluid
layers, and material elements sliding against each other. There are several
types of friction:
o Dry friction resists relative l
Average Acceleration Notes and Practice Set
NOTES:
Acceleration = a change in speed: (Speeding upSlowing down or
changing direction)
Average acceleration is the rate at which velocity changes.
o Average acceleration is the change in velocity divided by
Average Velocity and Displacement Notes and
Practice Set
NOTES:
Velocity is a vector physical quantity; both magnitude and direction are
required to define it.
o Velocity is a vector quantity that refers to "the rate at which an object
changes its positi
Stopping Distance Notes and Practice Set
NOTES:
Momentum
o A quantity that describes an object's resistance to stopping (a kind of
"moving inertia").
o Represented by the symbol p (boldface).
o The product of an object's mass and velocity.
p=mv
o Vector
Force and Impulse Notes and Practice Set
NOTES:
In classical mechanics, impulse is defined as the integral of a force with
respect to time, which gives you the change in the momentum of the body
being acted on by the force.
A force causes acceleration, a
Momentum Practice Set
NOTES:
In classical mechanics, linear momentum or translational momentum is the
product of the mass and velocity of an object.
o For example, a heavy truck moving fast has a large momentumit
takes a large and prolonged force to get t
The Science of Physics Conservation of Energy
Practice Set
EQUATION: PE + KE + U = 0 (Energy Conservation, including a term for the
change in internal energy)
NOTES:
It states that the total amount of energy in an isolated system remains
constant over ti
The Science of Physics Metric Prefixes Practice Set
ONLY Answers at the end of the section. No math work or equations.
1. One light year is the distance light travels in one year. This
distance is equal to 9.461 x 1015m. After the sun, the star nearest
to