Section 1
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Linear Speed
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Last updated
6 years ago
Date created
Mar 1, 2020
Cards (86)
Section 1
(50 cards)
Linear Speed
the path distance moved per unit of time.
Speed
how fast an object is moving
Elastic Collision
when objects collide without being permanently deformed and without generating heat. (Bouncing occurs)
Impulse
the quantity force times time interval.
area
the amount of space inside a something
Rotation
something spinning on its own axis (earth on its axis)
force
a push or pull
Scalar Quantity
a quantity that can be described by magnitude only and has no direction. (less descriptive)
theory
a synthesis of a large body of information that encompasses well-tested and verified hypotheses about certain aspects of the natural world.
Friction
the name given to the force that acts between materials that touch as they move past each other
kinetic
moving
kilometer (km)
A metric unit of length equal to 1000 meters.
Velocity
a speed in a given direction. (speed=16mph, velocity=16mph north)
Resultant
the sum of two or more vectors
friction
one thing rubbing against another
Newton
SI unite for force.
Acceleration
the rate at which the velocity is changing.
Average Speed
total distance/total time
9.8 m/s2
acceleration due to gravity
surface
the flat, top part of something (such as a table or desk)
Equilibrium Rule
Whenever the net force on an object is zero, the object is said to be in mechanical equilibrium. (cruise control on a car)
Vector Quantity
a quantity that needs both magnitude and direction for a complete description. Force is an example of a vector quantity.
Newton's Second Law
when an unbalanced force acts on an object, the object will be accelerated.
Momentum
the mass of an object multiplied by its velocity
instantaneous speed
the speed of an object at one instant of time
kinetic friction
Friction between moving surfaces
Mass
the quantity of matter in an object. DOES NOT CHANGE ON ANOTHER PLANET NO MATTER WHAT THE FORCE OF GRAVITY IS. measured in kg
net force
combination of all forces on an object
Revolution
something traveling around another something (earth around the sun)
Constant Velocity
the object's net force is equal to zero (could be moving or could not be moving)
seconds
SI unit for time
Centripetal Force
a center directed force that causes an object to move in a curved path
terminal velocity
the constant velocity of a falling object when the force of air resistance is equal in magnitude and opposite in direction to the force of gravity
static friction
Friction that acts on objects that are not moving
Projectile
any object that moves through the air, space, acted on only by gravity.
Components
two vectors at right angles that add up to the given vector
Pythagorean Theorem
how do u calculate the resultant?
mass
how big something is, measure in newtons (N)
vaccum
A space where no particles of matter exist
external forces
forces from agents outside the system
Inelastic Collision
colliding objects become distorted and generate heat. (Objects stick together)
Perpendicular force
normal force is the ________ ________
Tension Force
pulling force applied to an object that can make an object stretch
Spring Force
The force exerted by a compressed or stretched spring upon any object that is attached to it
static
no change or movement
Newton's First Law
every object continues in a state of rest, or of uniform speed in a straight line, unless acted on by a nonzero net force
Newton's Third Law
for every action, there is an equal and opposite reaction.
Inertia
the property of a body to resist changes in its state of motion
Weight
force of gravity on an object. measured in newtons.
force
power pushing or pulling on something
Section 2
(36 cards)