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Physics GRE Formulas > Classical Mechanics: Essentials > Flashcards

Classical Mechanics: Essentials Flashcards

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1
Q

What is Newton’s Second Law?

A
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2
Q

Newton’s Third Law

A

If two bodies A and B interact, the force that A exerts on B is identical in magnitude and opposite in direction to the force B exerts on A

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3
Q

Define work

A
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4
Q

Define (classical) translational kinetic energy

A
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5
Q

Define power

A

Power is work per time.

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6
Q

Give a description of power along a straight line or in rotational systems

A
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7
Q

Spring potential energy

A
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8
Q

Near-Earth gravitational potential energy

A
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9
Q

Nonrelativistic momentum

A
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10
Q

Collisions conserve:

A

All collisions conserve momentum. Fully elastic collisions conserve energy as well. Inelastic collisions do not conserve energy.

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11
Q

Center of mass

A
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12
Q

Change in velocity of a rocket after expulsion of a given mass of fuel

A
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13
Q

Center of mass velocity

A
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14
Q

Define pressure

A
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15
Q

What is the gravitational field of a point mass?

A
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16
Q

What is Kepler’s 1st law?

A

Each planet moves in an elliptical orbit with the sun at a focus.

17
Q

What is Kepler’s 2nd law?

A

A line from the sun to a given planet sweeps out equal areas in equal times.

18
Q

What is Kepler’s 3rd law?

A

The periods of the planets are proportional to the 3/2 powers of the major axis lengths.

19
Q

Angular frequency of a simple pendulum

A
20
Q

Effective spring constant in parallel and series

A

Spring constants add in parallel. Their inverses add in series.

21
Q

Kinematic equation 1 (position as a function of time given constant acceleration)

A
22
Q

Kinematic equation 2 (quadratic bypass)

A
23
Q

Kinematic equation 3 (change in position with unknown acceleration)

A
24
Q

Kinematic equation 4 (final velocity without reference to position)

A

Physics GRE Formulas (15 decks)

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