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AP Physics Ch.7-Angular Momentum

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Section 1

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Parallel axis theorem, I=?

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Mar 1, 2020

Cards (44)

Section 1

(44 cards)

Parallel axis theorem, I=?

Front

Icm + M l^2 (The first term is the moment due to spin, and the second is the moment due to the center of mass motion around a point distance l away.)

Back

Angular acceleration (empiriometric) α=?

Front

dω/dt

Back

Everything looks the same no matter what direction we go (up/down, left/right, back/forth). It results in the conservation of linear momentum.

Front

Homogenous

Back

The angular momentum of a rigid body has two independent components: 1) The ___ angular momentum of the center of mass about the origin 2) The _ angular momentum about the center of mass of each body L total=___?

Front

orbital, spin, L orbit+L cm

Back

5 postulates of Euclid: 1) To draw a straight ___ from any point to any point 2) To produce a finite straight line _ in a straight line 3) To describe a _ with any center and radius 5) ___ line postulate- if a straight line falling on two straight lines makes the interior angles on the same side less than two right angles, the two straight lines, if produced indefinitely, meet on that side on which are the angles less than the two right angles.

Front

line, continuously, circle, Parallel

Back

_ acceleration points toward the center of the circle that defines the path of an object moving in uniform circular motion. Such an object has _ speed, yet it is accelerating.

Front

Centripetal, constant

Back

The 3 most important concepts in empiriometric physics: 1) Conservation of ___ 2) Conservation of_ 3) Conservation of _ ___

Front

energy, momentum, angular momentum

Back

a=? (in terms of r)

Front

r x α

Back

Measure of change of motion (rotational motion of rigid body)

Front

Angular acceleration (α)

Back

Centripetal acceleration Ac=? (in terms of r)

Front

v^2/r

Back

Rotational Kinetic Energy (empiriometric) KEr=?

Front

1/2Iω^2

Back

Does moment of inertia depend on the axis of rotation?

Front

Yes

Back

The spin of an object is a change in _, and the orbital momentum is related to a change in _.

Front

orientation, place

Back

Light does not have impetus in the ___ sense, but it does in the _ sense yes. It has the capacity to cause a certain impetus, and thus energy, in bodies that ___ it.

Front

ordinary, analogical, absorbs

Back

Cause of change of impetus (intensity and direction measure) (rotational motion of rigid body)

Front

Torque (τ)

Back

Measure of action of force (rotational motion of rigid body)

Front

Work (Wr)

Back

Resistance to impetus (a quality) (rotational motion of rigid body)

Front

Moment of Inertia (I)

Back

Is angular velocity always parallel to angular momentum?

Front

No

Back

Conservation of _ _ means the net tendency to move in an angular direction around a given point is never lost.

Front

angular momentum

Back

Uniform circular motion changes _ but not _.

Front

velocity, speed

Back

v=? (in terms of r)

Front

r x ω

Back

Conservation of angular momentum (of system) L=?

Front

∑L=constant

Back

Centripetal force Fc=? (in terms of r)

Front

mv^2/r

Back

A body that can be made by dragging a planar figure along the axis perpendicular to it.

Front

Planar body

Back

Measure of activity of motion (rotational motion of rigid body)

Front

Rotational Kinetic Energy (KEr)

Back

Angular momentum (empiriometric) L=?

Front

Iω

Back

τ=? (in terms of r)

Front

r x F

Back

Cause of motion (intensity and direction measure) (rotational motion of rigid body)

Front

Angular momentum (L)

Back

Work (empiriometric) Wr=?

Front

∫τ dø

Back

∆x=? (in terms of r)

Front

r x ∆ø

Back

Power (empiriometric) Pr=?

Front

dE/dt

Back

Plank's law

Front

E = hv (E stands for Energy of light, h is a constant of proportionality, and v represents the frequency.)

Back

When you stand at one point and rotate around, you will see the same thing in every direction. It results in the conservation of angular momentum.

Front

Isotropic

Back

Rate of change of activity (rotational motion of rigid body)

Front

Power (Pr)

Back

Angular velocity (empiriometric) ω=?

Front

dø/dt

Back

Moment of inertia (empiriometric) I=? (in terms of r)

Front

∑mr^2

Back

KE external=?

Front

KE linear+KE rotational

Back

_____ Theorem The angular momentum of a body can be broken up into linear motion of the center of mass, rotational motion of the center of mass about a chosen origin, and rotation about the center of mass.

Front

Spin/orbit

Back

A uniform change in orientation

Front

Spin

Back

L=? (in terms of r)

Front

r x p

Back

Torque (empiriometric) τ=?

Front

dL/dt

Back

Zero net torque

Front

Ensures that angular momentum is conserved

Back

___ _ is any force or combination of forces that causes a body to ___ from its straight line path.

Front

Centripetal force, turn

Back

Measure of motion (rotational motion of rigid body)

Front

Angular velocity (ω)

Back

AP Physics Ch.7-Angular Momentum

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Parallel axis theorem, I=?

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Cards (44)

Parallel axis theorem, I=?

Icm + M l^2 (The first term is the moment due to spin, and the second is the moment due to the center of mass motion around a point distance l away.)

Angular acceleration (empiriometric) α=?

dω/dt

Everything looks the same no matter what direction we go (up/down, left/right, back/forth). It results in the conservation of linear momentum.

Homogenous

The angular momentum of a rigid body has two independent components: 1) The _____ angular momentum of the center of mass about the origin 2) The _____ angular momentum about the center of mass of each body L total=_____?

orbital, spin, L orbit+L cm

line, continuously, circle, Parallel

_____ acceleration points toward the center of the circle that defines the path of an object moving in uniform circular motion. Such an object has _____ speed, yet it is accelerating.

Centripetal, constant

The 3 most important concepts in empiriometric physics: 1) Conservation of _____ 2) Conservation of_____ 3) Conservation of _____ _____

energy, momentum, angular momentum

a=? (in terms of r)

r x α

Measure of change of motion (rotational motion of rigid body)

Angular acceleration (α)

Centripetal acceleration Ac=? (in terms of r)

v^2/r

Rotational Kinetic Energy (empiriometric) KEr=?

1/2Iω^2

Does moment of inertia depend on the axis of rotation?

Yes

The spin of an object is a change in _____, and the orbital momentum is related to a change in _____.

orientation, place

Light does not have impetus in the _____ sense, but it does in the _____ sense yes. It has the capacity to cause a certain impetus, and thus energy, in bodies that _____ it.

ordinary, analogical, absorbs

Cause of change of impetus (intensity and direction measure) (rotational motion of rigid body)

Torque (τ)

Measure of action of force (rotational motion of rigid body)

Work (Wr)

Resistance to impetus (a quality) (rotational motion of rigid body)

Moment of Inertia (I)

Is angular velocity always parallel to angular momentum?

No

Conservation of _____ _____ means the net tendency to move in an angular direction around a given point is never lost.

angular momentum

Uniform circular motion changes _____ but not _____.

velocity, speed

v=? (in terms of r)

r x ω

Conservation of angular momentum (of system) L=?

∑L=constant

Centripetal force Fc=? (in terms of r)

mv^2/r

A body that can be made by dragging a planar figure along the axis perpendicular to it.

Planar body

Measure of activity of motion (rotational motion of rigid body)

Rotational Kinetic Energy (KEr)

Angular momentum (empiriometric) L=?

Iω

τ=? (in terms of r)

r x F

Cause of motion (intensity and direction measure) (rotational motion of rigid body)

Angular momentum (L)

Work (empiriometric) Wr=?

∫τ dø

∆x=? (in terms of r)

r x ∆ø

Power (empiriometric) Pr=?

dE/dt

Plank's law

E = hv (E stands for Energy of light, h is a constant of proportionality, and v represents the frequency.)

When you stand at one point and rotate around, you will see the same thing in every direction. It results in the conservation of angular momentum.

Isotropic

Rate of change of activity (rotational motion of rigid body)

Power (Pr)

Angular velocity (empiriometric) ω=?

dø/dt

Moment of inertia (empiriometric) I=? (in terms of r)

∑mr^2

KE external=?

KE linear+KE rotational

_____ Theorem The angular momentum of a body can be broken up into linear motion of the center of mass, rotational motion of the center of mass about a chosen origin, and rotation about the center of mass.

Spin/orbit

The angular momentum of a rigid body has two independent components: 1) The ___ angular momentum of the center of mass about the origin 2) The _ angular momentum about the center of mass of each body L total=___?

_ acceleration points toward the center of the circle that defines the path of an object moving in uniform circular motion. Such an object has _ speed, yet it is accelerating.

The 3 most important concepts in empiriometric physics: 1) Conservation of ___ 2) Conservation of_ 3) Conservation of _ ___

The spin of an object is a change in _, and the orbital momentum is related to a change in _.

Light does not have impetus in the ___ sense, but it does in the _ sense yes. It has the capacity to cause a certain impetus, and thus energy, in bodies that ___ it.

Conservation of _ _ means the net tendency to move in an angular direction around a given point is never lost.

Uniform circular motion changes _ but not _.

___ _ is any force or combination of forces that causes a body to ___ from its straight line path.