# Study sets matching "physics rotational motion"

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Tangential speed

Rotational speed

Rotational inertia

Torque

The linear speed tangent to a curved path, such as in circular…

the number of rotations per unit of time

An object rotating about an axis teands to keep rotating about…

a turning or twisting force

Tangential speed

The linear speed tangent to a curved path, such as in circular…

Rotational speed

the number of rotations per unit of time

moment of inertia

angular momentum

radian

angular speed

resistance to change in rotational motion

Rotational momentum of a spinning or orbiting object, L = mvr

unit of measure for angular displacement

the number of rotations per time unit

moment of inertia

resistance to change in rotational motion

angular momentum

Rotational momentum of a spinning or orbiting object, L = mvr

What is the formula for torque?

How much torque is produced by opening…

If the amount of torque needed to remov…

The centripetal acceleration and the ce…

torque= force x radius

5.7

0.15

towards the center

What is the formula for torque?

torque= force x radius

How much torque is produced by opening…

5.7

Radian

Angular Displacement

Angular velocity

Agular Acceleration

1/2 Pi of a revolution; abberviated rad.

The change in the angle as the object rotates

the angular displacement of an object divided by the time need…

the change in angular velocity dived by the time needed to mak…

Radian

1/2 Pi of a revolution; abberviated rad.

Angular Displacement

The change in the angle as the object rotates

Angular Position

"Find angular displacement ...."

"Find angular velocity..."

Units of angular displacement?

Denoted theta (θ)

Δθ = θfinal - θinitial... "Delta theta equals theta final minus t…

ω = Δθ / Δt.... "Omega equals delta theta over delta t."

rad/s... Radians over seconds.

Angular Position

Denoted theta (θ)

"Find angular displacement ...."

Δθ = θfinal - θinitial... "Delta theta equals theta final minus t…

3.49 rad/s

3.50 m/s

the first force (at the midpoint)

63°

Express the angular speed of an old 33 1/3 rpm LP in rad/s.

A child is riding a merry-go-round that is turning at 7.18 rpm…

Two forces produce equal torques on a door about the door hing…

Through how many degrees does a 33 rpm turntable rotate in

3.49 rad/s

Express the angular speed of an old 33 1/3 rpm LP in rad/s.

3.50 m/s

A child is riding a merry-go-round that is turning at 7.18 rpm…

Axis

Rotation

Revolution

Linear Speed

The straight which rotation takes place.

When an object turns around an internal axis.

When an object turns around an external axis

The speed of an object along a linear path.

Axis

The straight which rotation takes place.

Rotation

When an object turns around an internal axis.

Translational Motion

Rotational Motion

Center of Mass

Angular Displacement

movement in which an object moves from one point to another

the rotation of a body around its center of mass

the point about which all of the matter of an object is evenly…

the angle over which the rotation occurs; distance covered

Translational Motion

movement in which an object moves from one point to another

Rotational Motion

the rotation of a body around its center of mass

Translational Motion

Rotational Motion

Angular Position

Angular displacement

motion along a straight line. ex: box sliding down an incline,…

spinning motion about an axis. ex: wheels, gears, motors, plan…

the angle that a point, line, or body forms with respect to so…

the angle through which a point, line, or body is rotated in a…

Translational Motion

motion along a straight line. ex: box sliding down an incline,…

Rotational Motion

spinning motion about an axis. ex: wheels, gears, motors, plan…

radians (equation)

angular displacement

angular momentum

conservation of angular momentum

Θ° (π/180°)

Θ = s/t ; the angle in radians (degrees, revolutions) through…

L = Iw , L = L ; the quantity of rotation of a body, which is…

L = L... L = Iw... L = mr²w ... Iw = Iw ... mr²w = mr²w --> mR²w = mr²W... Re…

radians (equation)

Θ° (π/180°)

angular displacement

Θ = s/t ; the angle in radians (degrees, revolutions) through…

Radian

Angular Velocity

Angular Acceleration

Linear velocity and the angular velocit…

The angle, subtended by an arc whose length is equal to the ra…

Average angular velocity is equal to the change in the angle d…

Equal to the change in angular velocity divided by the change…

How is linear velocity related to angular velocity?

Radian

The angle, subtended by an arc whose length is equal to the ra…

Angular Velocity

Average angular velocity is equal to the change in the angle d…

outside horse

double

2 m/s

twice as fast

1. Which moves faster in m/s on a merry-go-round: a horse on t…

2. If a record playerʹs rotational speed is doubled, then the…

3. Suppose the circumference of a bicycle wheel is 2 meters. I…

4. Consider a string with several rocks tied along its length…

outside horse

1. Which moves faster in m/s on a merry-go-round: a horse on t…

double

2. If a record playerʹs rotational speed is doubled, then the…

Pure Translational Motion

Pure Rotational Motion (on a fixed axis)

Rolling Without Slipping

Torque

All the particles that make up a rigid object have the same in…

All the particles that make up a rigid object have the same in…

νCM = rω... (s = rθ or aCM = rα)

The rotational analogue of force, is the product of a force an…

Pure Translational Motion

All the particles that make up a rigid object have the same in…

Pure Rotational Motion (on a fixed axis)

All the particles that make up a rigid object have the same in…

Tangential speed

Rotational speed (sometimes called angu…

Rotational inertia (often called moment…

Torque

The linear speed tangent to a curved path, such as in circular…

The number of rotations or revolutions per unit of time; often…

The property of an object that measures its resistance to any…

The product of force and lever-arm distance, which tends to pr…

Tangential speed

The linear speed tangent to a curved path, such as in circular…

Rotational speed (sometimes called angu…

The number of rotations or revolutions per unit of time; often…

what are the 2 types of circular motion?

axis

internal axis

when an object turns about an internal…

1) rotation... 2) revolution

the straight line around which rotation takes place

an axis located within the body of the object

rotation (or spin)

what are the 2 types of circular motion?

1) rotation... 2) revolution

axis

the straight line around which rotation takes place

Axis

An object rotates around an _______ axi…

An object revolves around an _________…

What kind of speed is greater on the ou…

the straight line around which rotation takes place.

internal

external.

Linear speed.

Axis

the straight line around which rotation takes place.

An object rotates around an _______ axi…

internal

Traveling a greater distance in the sam…

When is linear speed greater on a rotat…

What is tangential speed?

What is the unit for tangential speed?

a greater speed

On the outer edge.

The linear speed of something moving along a circular path.

m/s

Traveling a greater distance in the sam…

a greater speed

When is linear speed greater on a rotat…

On the outer edge.

Circular Motion

Tangential speed

higher

tangential speed

when an object turns about an internal axis. Two types: tangen…

distance traveled by a opint on the rotationg object divided b…

Do the point closer to the circumference have a higher or lowe…

Radial distance * Rotational speed

Circular Motion

when an object turns about an internal axis. Two types: tangen…

Tangential speed

distance traveled by a opint on the rotationg object divided b…

Linear speed

Centripetal force

Torque

Centripetal acceleration

is measured in units per unit time. v=rω

the inwards force of a spinning circular motion

a twisting force that causes rotation

the inwards force of a spinning circular motion. ac=v^2/r

Linear speed

is measured in units per unit time. v=rω

Centripetal force

the inwards force of a spinning circular motion