| Card # |
English |
English |
Image |
| 1 |
Centripetal acceleration |
ac=vt2/r |
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| 2 |
Equation for Inelastic collision |
m1vii=(m1+m2)vf |
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| 3 |
First to promotoe heliocentric theory |
Aristarchus |
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| 4 |
Force x Time (F t) |
Impulse |
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| 5 |
Forces between bodies are proportional to 1/r2, R is the distance between |
Inverse Square Law |
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| 6 |
Half of the distance from Perihelion to aphelion |
Semi-Major Axis |
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| 7 |
Ideas were not terribly accurate but simpler (heliocentric) |
Copernicus |
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| 8 |
Inertia in motion |
Momentum Inertia |
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| 9 |
Keplerian 3rd Law Equation |
R3/T2=K |
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| 10 |
Kinematics |
Kepler correctly described planet's |
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| 11 |
L= mass x velocity x radius |
Angular momentum |
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| 12 |
Mass x Velocity |
Momentum |
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| 13 |
Mixture of geocentric and heliocentric theories; hired Kepler; accurate observations |
Tycho Brahe |
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| 14 |
Number of coordinate systems |
Three |
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| 15 |
Only conservative forces act |
Elastic collisions |
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| 16 |
Planets travel in elliptical orbits |
K. First Law |
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| 17 |
Rotational Equilibrium |
Zero Net Torque |
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| 18 |
Sensitive Instrument for measuring forces |
Torsion Balance |
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| 19 |
The ration of the cube of the semi major axis(R) and the square of the period (T)is the same |
Third Law |
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| 20 |
Torque= force x "r" x sinTheta |
Torque Equation |
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| 21 |
Up (positive) |
Counterclockwise direction |
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| 22 |
Vector |
Tangenital Speed Quantity Type |
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| 23 |
Vt |
Tangenital Speed Symbol |
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| 24 |
an object circles a point in space |
Revolution |
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| 25 |
an object is spinning about an axis which passes through itself |
Rotation |
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| 26 |
angular speed |
Magnitude of angular velocity |
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| 27 |
distance between the rotational axis and the line of action |
lever arm |
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| 28 |
every mass attracts every other mass |
Newton Universal Law of Gravitation |
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| 29 |
kg m/s |
Momentum unit |
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| 30 |
kinetic energy not conserved--masses stick. final velocity is the same |
Inelastic Collision |
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| 31 |
number of radians in complete circle |
2 Pie Radians |
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| 32 |
omega=deltaTheta/deltaTime |
angular speed equation |
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| 33 |
opposite direction from radius |
Centripetal Acceleration |
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| 34 |
parallel to tthe displacement vector |
Average velocity |
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| 35 |
points toward center of circle |
Centripetal acceleration |
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| 36 |
produces acceleration |
Unbalanced torque |
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| 37 |
r and Theta |
polar coordinate symbols |
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| 38 |
radians per second |
Angular speed unit in radians |
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| 39 |
scalar |
Angular Speed type of quantity |
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| 40 |
takes place when there is a change in tangenital speed |
Non Uniform Circular Motion |
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| 41 |
tangent to the circle |
Instantaneous velocity |
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| 42 |
the Angle is changing |
Reason for Uniform Angular Velocity |
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| 43 |
the arc of the circle |
Distance |
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| 44 |
the chord of the circle |
displacement |
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| 45 |
the position vector of a planet travels through equal ares in equal times |
Second Law |
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| 46 |
the product of the magnitude of force and the length of the lever arm |
Torque |
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| 47 |
the time required to complete one cycle. |
Period |
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| 48 |
the time-rate change of angular poistion in a specified direction |
Angular velocity |
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| 49 |
the total moment of a the system is conserved, barring outside forces |
Conservation of Momentum |
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| 50 |
torque in both clock directions will equal each other if there is no change in rotational motion |
Law of moments |
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| 51 |
unit of angular measurement |
Radian |
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