Section 1
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Force causing terminal velocity
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Last updated
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Date created
Mar 1, 2020
Cards (56)
Section 1
(50 cards)
Force causing terminal velocity
Air resistance
Force
A push or pull exerted on an object
Adding vectors
"head to tail" + sum represented by arrow drawn from tail first vector to head second vector
Hooke's Law Equation
F=kx
Speed unit of measurement
m/s
Law of Intertia
objects at rest tend to stay at rest, and objects in motion tend to stay in motion unless acted upon by an outside force
speed formula
s=d/t
calculating acceleration
final speed-initial speed/time
Hooke's Law
The law stating that the stress of a solid is directly proportional to the strain applied to it.
Elastic and Plastic Deformation
Where the object loses its elasticity
Friction
A force that opposes motion between two surfaces that are in contact
vector measurement
a measurement that has magnitude and directional
Volume formula
L x W x H
Displacement
Distance and direction of an object's change in position from the starting point.
magnitude
Speed
The distance an object travels per unit of time
Weight and mass equation
W=m×g
Vector
A quantity that has magnitude and direction
law of motion
For every action there is an equal and opposite reaction
Pressure formula
P=F/A (force/area)
Acceleration
The rate at which velocity changes
time unit
S
Law of Acceleration
an object will move in the direction of the force applied to it (F=ma)
Pressure formula
Pressure = Force/Area (P=F/A)
Gradient
slope
center of mass
the point in an object that moves as if all the object's mass were concentrated at that point
Pressure unit
N/m^2 or Pascal
Density formula
D=m/V Density=mass/volume
scalar measurement
measurement with only magnitude or quantity
Speed-time graph
A visual representation of the acceleration of an object
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
Density unit
kg/m^3
buoyancy
The ability of a fluid to exert an upward force on an object placed in it
irregular center of mass
where the mass is centered
free body diagram
a diagram showing all the forces acting on an object
adding scalars
add up both distances even if you change direction e.g. 2 miles north + 3 miles south = 5 miles
balanced forces
Equal forces acting on an object in opposite directions
Weight
A measure of the force of gravity on an object
Calculating gradient
change in y/change in x
Acceleration
Change in velocity divided by the time it takes for the change to occur (m/s2)
Velocity
Speed in a given direction
area
Length x Width
Scalar
A physical quantity that has magnitude only.
Mass
the amount of matter in an object
Gravity
the force that attracts a body toward the center of the earth, or toward any other physical body having mass
Distance Units
m
unbalanced forces
forces acting on an object that combine and form a net force that is not zero
How do you use a eureka can to calculate the volume of an irregularly shaped object?
weigh the object
Speed-time graph
A visual representation of the acceleration of an object
Acceleration unit
m/s/s
Section 2
(6 cards)