Section 1
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slope of velocity-versus-time graph
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Last updated
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Date created
Mar 1, 2020
Cards (64)
Section 1
(50 cards)
slope of velocity-versus-time graph
acceleration
artificial gravity
Can be produced by a slow spin on a portion of a space ship.
second
Unit of time.
friction force
the component of the contact force that's parallel to the surface
gravitational force
r is the distance between the two objects
slope of position-versus-time graph
velocity
free-body (or force) diagram
Newton's first law
an object at rest will stay at rest and an object in motion will stay in constant velocity unless a net force acts on it (law of inertia)
meter
Unit of distance or displacement.
rotational equilibrium
- sum of all torques on an object is 0: T net = 0
torque
-a property of force that makes an object rotate - NOT A FORCE - theta = angle between force and object
inverse square
Gravity is what type of formula?
Greater
The longer the lever arm, the ... the torque.
mu
coefficient of friction
area between the graph and the t axis on a velocity-versus-time graph
object's displacement
cosine
Trig function - adjacent/hypotenuse
kinetic energy
the energy of an object due to motion K= .5mv^2
displacement
change in position
normal force
component of force that's perpendicular to the surface
weight (of an object)
the gravitational force exerted on it by the Earth or whatever planet Fw or Fg= mg
static equilibrium
an object is at rest
rotational inertia
also known as the moment of inertia -the tendency of an object in motion to rotate until acted upon by an outside force
tangent
Trig function - opposite/adjacent
kinetic friction
occurs when there is relative motion (when there's sliding)
uniform circular motion
-speed is constant - velocity is not constant because the direction of velocity is always changing -in order to produce acceleration there must be a force towards the center
decreases
As the distance from a planet increases, the velocity to orbit at that location ...
Joule
unit of energy; Nm
sine
Trig function - opposite/hypotenuse
velocity
speed with a direction
Newton's third law
for every action there is an equal but opposite reaction (action/ reaction pair)
kinematics
mathematical tools for describing motion in terms of displacement, velocity, and acceleration
scalar
a quantity that does not involve a direction
increases
As the distance from the planet decreases, the force of gravity at that location ...
newton
kg m/s^2 unit of force
inertia
the property of objects to naturally resist changes in their states of motion
Newton's second law
position
location in some point in space
acceleration
change in velocity/ time △v/△t
universal gravitational constant (G)=
static friction
occurs when there is no motion between two objects (friction that holds an object still)
tension
Type of force in a cable or rope
newton's law of gravitation
any two objects in the universe exert an attractive force on each other called the gravitational force
potential energy
the energy an object or system has by virtue of its position Ug - gravitational potential energy △Ug= mg△h
gravity
-10 m/s^2
vector
quantity that involves both magnitude and direction
average velocity
displacement / time △x/△t
equilibrium
- sum of all forces acting on an object is 0: F net=0
centripetal force
Caused by something - friction, tension, gravity. Always points towards the center.
average speed formula
total distance/ time d/t
Less
The less the force applied, the ... the torque.
Section 2
(14 cards)