Study sets matching "physics rotational motion"

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Study sets matching "physics rotational motion"

12 terms
Physics Rotational Motion
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 rp…
Two forces produce equal torques on a door about the door hin…
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 rp…
26 terms
Physics- Circular & Rotational Motion
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.
Physics: Rotational Motion
The resistance an object has to change…
Inertia can be thought of as a measure…
Newton's first law does not apply to r…
According to the law of inertia, rotat…
rotational inertia
"laziness"
FALSE
TRUE
The resistance an object has to change…
rotational inertia
Inertia can be thought of as a measure…
"laziness"
Physics - Rotational Motion
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 evenl…
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
33 terms
Physics --Rotational Motion and the Law of gravity
rotational motion
radian
angular displacement
angular speed
motion of a body that spins about an axis.
an angle whose arc length is equal to its radius, which is ap…
The change in the angle as an object rotates.
the rate at which a body rotates about an axis, usually expre…
rotational motion
motion of a body that spins about an axis.
radian
an angle whose arc length is equal to its radius, which is ap…
11 terms
Physics Principles for Rotational Motion
Angular Position
"Find angular displacement ...."
"Find angular velocity..."
Units of angular displacement?
Denoted theta (θ)
Δθ = θfinal - θinitial... "Delta theta equals theta final minus…
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…
22 terms
Physics: Rotational Motion
Angular Displacement
Angular Acceleration
Rotational Motion
Radian
angle through which a point, line, or body is rotated in a sp…
Time rate of change in angular speed , expressed in rad/s squ…
Motion of a body that spins about an axis
An angle whose arc length = radius, which is approx. = 57.3 d…
Angular Displacement
angle through which a point, line, or body is rotated in a sp…
Angular Acceleration
Time rate of change in angular speed , expressed in rad/s squ…
11 terms
Physics Rotational Motion Vocab
Tangential speed
Rotational Speed
Rotational Inertia
Torque
linear tangent to a curved path such as in circular motion
number of rotation or revolution per unit of time, often meas…
Property of an object that measure its resistance to at chang…
Produce of force and lever arm distance which tens to produce…
Tangential speed
linear tangent to a curved path such as in circular motion
Rotational Speed
number of rotation or revolution per unit of time, often meas…
22 terms
Physics Rotational Motion
360 degrees= ___ rads
1 rad=___ degrees
angular velocity
angular acceleration
2 pi
57.3 degrees
omega ... change in angle over change in time.
alpha... change in angular velocity over change in time
360 degrees= ___ rads
2 pi
1 rad=___ degrees
57.3 degrees
Physics: rotational motion
Displacement
Angular Displacement
Linear Velocity
Angular Velocity
Symbol: X... Units: m
Symbol: ø... Units: rad
Symbol: v... Units: m/s
Symbol: w... Units: rad/s
Displacement
Symbol: X... Units: m
Angular Displacement
Symbol: ø... Units: rad
15 terms
Physics Circular/Rotational Motion
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
10 terms
Rotational Motion Honors Physics
centripetal force
centrifugal force
tangential speed
Newton's Law of Universal Gravitation
force pushing to center
fictional force
linear velocity
All masses attract other masses
centripetal force
force pushing to center
centrifugal force
fictional force
42 terms
Physics: Rotational Motion
The resistance an object has to change…
Inertia can be thought of as a measure…
Newton's first law does not apply to r…
According to the law of inertia, rotat…
rotational inertia
"laziness"
FALSE
TRUE
The resistance an object has to change…
rotational inertia
Inertia can be thought of as a measure…
"laziness"
Physics: Rotational Motion
What is the difference between radians…
Why are radians preferred in rotationa…
Why are degrees preferred in torque?
How is moment of inertia similar to an…
The degree was invented by Babylonians. Their calendar had 36…
Radians can be converted to distance around circle by multipl…
Torque is to dtermine the force tangent to the rotation. The…
Similar: moment of Inertia represents mass in rotational moti…
What is the difference between radians…
The degree was invented by Babylonians. Their calendar had 36…
Why are radians preferred in rotationa…
Radians can be converted to distance around circle by multipl…
13 terms
Physics: Rotational Motion
The tendency of a force to cause rotat…
What produces the greatest torque?
To kick a football so that it doesn't…
Why does the Leaning Tower of Pisa not…
Torque
Large force, long lever arm
In line with its center of mass.
It does not topple because it center of gravity is above (wit…
The tendency of a force to cause rotat…
Torque
What produces the greatest torque?
Large force, long lever arm
17 terms
Physics chapter 7 - Rotational Motion
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, pla…
the angle that a point, line, or body forms with respect to s…
the angle through which a point, line, or body is rotated in…
Translational Motion
motion along a straight line. ex: box sliding down an incline…
Rotational Motion
spinning motion about an axis. ex: wheels, gears, motors, pla…
Physics Chapt 8 - Rotational Motion
Angular acceleration
Angular displacement
Angular velocity
Center of mass
the change in angular velocity divided by the time needed to…
the change in the angle as an object rotates. We will express…
the angular displacement of an object divided by the time nee…
the point on the object that moves in the same way that a poi…
Angular acceleration
the change in angular velocity divided by the time needed to…
Angular displacement
the change in the angle as an object rotates. We will express…
16 terms
Physics - Rotational Motion
Circular Motion
Tangential speed
higher
tangential speed
when an object turns about an internal axis. Two types: tange…
distance traveled by a opint on the rotationg object divided…
Do the point closer to the circumference have a higher or low…
Radial distance * Rotational speed
Circular Motion
when an object turns about an internal axis. Two types: tange…
Tangential speed
distance traveled by a opint on the rotationg object divided…
Rotational Motion Physics
Radian
Angular Velocity
Angular Acceleration
Linear velocity and the angular veloci…
The angle, subtended by an arc whose length is equal to the r…
Average angular velocity is equal to the change in the angle…
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 r…
Angular Velocity
Average angular velocity is equal to the change in the angle…
17 terms
Physics Rotational motion vocab
Angular displacement
Angular position
Angular speed
Angular velocity
The angle that a rotating body goes through
The orientation of a body or figure with respect to a specifi…
The rate of change in angular displacement, the rate at which…
The rate of change in angular displacement of a rotating body
Angular displacement
The angle that a rotating body goes through
Angular position
The orientation of a body or figure with respect to a specifi…
11 terms
Physics - Rotational Motion
Rigid Body
Translational motion
Rotational motion
Moment of Inertia
System of particles in which the inter particle distances are…
No rotation.
Particles travel in cuticles about the axis of rotation.
Resistance of an object to a change in rotational motion.
Rigid Body
System of particles in which the inter particle distances are…
Translational motion
No rotation.
Physics -Rotational Motion
Rotational Postion (Angular Position)
Radian
Rad
Rotational (Angular) Velocity
The angle in the counterclockwise direction between the refer…
The unit for rotational position that is most useful in physics
Usually a reminder that we are using radians for angles
The rate of change of each point's rotational position.
Rotational Postion (Angular Position)
The angle in the counterclockwise direction between the refer…
Radian
The unit for rotational position that is most useful in physics
12 terms
Physics Rotational motion
radian
angular velocity
angular frequency
angular acceleration
0=s/r... 0=the angle in radians... s=arc length... r=the radius
...
...
...
radian
0=s/r... 0=the angle in radians... s=arc length... r=the radius
angular velocity
...
8 terms
Physics - Rotational Motion
Rotational Inertia
Torque
Center of Mass
Center of gravity
An object resists changes in its rotational state of motion.…
Rotational counterpart of the force. Torque twists or changes…
Average position of all the mass that makes up the object
The average position of weight disribution
Rotational Inertia
An object resists changes in its rotational state of motion.…
Torque
Rotational counterpart of the force. Torque twists or changes…
7 terms
PHYSICS Rotational Motion Equations
Torque
I (Moment of inertia/Rotational inertia)
α (Angular acceleration)
θ (Angular position)
t=Frsinθ (Nm)
I=∑mr² (kg m²)
α=torque/(mr²) ; a=α*r ; α=∆ω / ∆t ; (rad/s²)
θ=s/r (arc length/radius) ; radians
Torque
t=Frsinθ (Nm)
I (Moment of inertia/Rotational inertia)
I=∑mr² (kg m²)
Physics: Rotational Motion review
Rotational motion
Axis of rotation
Tangential speed
Accelerating
Rotation of a body that spins around an axis
The imaginary point or line which objects rotate
The instantaneous speed of an object and the direction that i…
A car is traveling in a circle with a constant speed of 30 km…
Rotational motion
Rotation of a body that spins around an axis
Axis of rotation
The imaginary point or line which objects rotate
21 terms
Advanced Physics: rotational Motion
Axis
Revolution
Rotation
Radian
Straight line around which an object rotates
An object turns around an axis outside the object
Object turns around an internal axis (spins)
Standard unit of angular displacement
Axis
Straight line around which an object rotates
Revolution
An object turns around an axis outside the object
7 terms
Physics - Rotational Motion
Rotational Motion
Angular position
Arc Length
Units for θ
The motion of objects that spin about an axis.
Angle θ
The distance the particle has traveled along its circular path.
Radians (rad)
Rotational Motion
The motion of objects that spin about an axis.
Angular position
Angle θ
11 terms
Physics: Rotational Motion
angular displacement (Δθ)
arc length (Δs)
radius (r)
angular velocity (Ѡ)
rad
m
m
rad/ s
angular displacement (Δθ)
rad
arc length (Δs)
m
17 terms
Physics Rotational Motion
θ=l/r
ω=Δθ/t
α=Δω/t
ω=ωi+αt
angular distance
angular velocity
angular acceleration
formula 1
θ=l/r
angular distance
ω=Δθ/t
angular velocity
5 terms
Physics Rotational Motion
θ=tan⁻¹(y/x)
V=Ω×r
V=dr/dt
Ω=dθ/dt
same thing as tangent of θ of y(sin) over x(cos)
proportional relationship between radius and rotaions
the velocity is the distance × radius over distance × time
rotations is distanceθ over distance time
θ=tan⁻¹(y/x)
same thing as tangent of θ of y(sin) over x(cos)
V=Ω×r
proportional relationship between radius and rotaions
11 terms
Physics Vocab - Rotational Motion
Rotational Inertia
Distribution of Mass
Linear Momentum
Angular Momentum
The resistance of an object to changes in its rotational moti…
The spatial concentration of mass within a solid body. The gr…
The product of the mass and the velocity of an object.
The product of the rotational inertia and rotational velocity…
Rotational Inertia
The resistance of an object to changes in its rotational moti…
Distribution of Mass
The spatial concentration of mass within a solid body. The gr…
11 terms
Physics Chapter 8 Rotational Motion
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 nee…
the change in angular velocity dived by the time needed to ma…
Radian
1/2 Pi of a revolution; abberviated rad.
Angular Displacement
The change in the angle as the object rotates
26 terms
Physics exam 2 rotational motion
Horses that move with the fastest line…
Your pet hamster sits on a record play…
Since each rolling wheel of a railroad…
The tapered shape of the parts of the…
a
b
c
c
Horses that move with the fastest line…
a
Your pet hamster sits on a record play…
b
9 terms
Physics Rotational Motion
angular velocity
angular momentum
torque
moment of inertia
rate of spinning
measure object's tendency to continue to spin
force applied which causes "twisting" or rotation
depends on mass and distribution of mass; tells us how diffic…
angular velocity
rate of spinning
angular momentum
measure object's tendency to continue to spin
22 terms
Physics Rotational Motion
Rotational velocity
rotational acceleration
Distance travelled in a circle
final rotational velocity
w(avg)=∆θ/t
α=(w(f)-w₀)/t
∆θ=w₀t+2αt²
w(f)²=w₀² + 2α∆θ
Rotational velocity
w(avg)=∆θ/t
rotational acceleration
α=(w(f)-w₀)/t
14 terms
Physics HN: Rotational Motion
axis of rotation
torque depends on __ and __
what is θ in torque equation?
center of mass
point all positions of object will rotate around
force and radius
between F and r when placed tip to tail
the point on an object where a single force while not produce…
axis of rotation
point all positions of object will rotate around
torque depends on __ and __
force and radius
14 terms
Physics 7 Rotational Motion
Kinematics
rotational
translational
Radians?
no forces ; only displacement velocity, acceleration, and time
motion around the center of the mass
motion of the center of the mass
1 revolution=360 degrees=2pie radians
Kinematics
no forces ; only displacement velocity, acceleration, and time
rotational
motion around the center of the mass
Physics rotational motion test
Tangential acceleration
Angular displacement
Arc length
Tangential velocity
Equation: Radius times alpha... Variable: a... Units: m/s squared
Equation: s/r... Variable: theta... Units: radians
Equation: r(theta)... Variable: s... Units: m
Equation: r(omega)... Variable: v... Units: m/s
Tangential acceleration
Equation: Radius times alpha... Variable: a... Units: m/s squared
Angular displacement
Equation: s/r... Variable: theta... Units: radians
15 terms
Physics Rotational Motion
The point at which all of the weight o…
The measure of a forces effectiveness…
The reluctance of an object to change…
The tendency of an object to maintain…
center of gravity
Torque
rotational inertia
angular momentum
The point at which all of the weight o…
center of gravity
The measure of a forces effectiveness…
Torque
18 terms
Physics Rotational Motion Packet
T or F... Newton's 1st law does not apply…
T or F... According to the law of inertia…
A ___ is required to change the rotati…
Rotational Intertia
false
true
torque
depends on the mass of an object, and the distribution of mas…
T or F... Newton's 1st law does not apply…
false
T or F... According to the law of inertia…
true
Physics Rotational Motion Test
Tangential speed
Rotational speed
Rotational inertia
Torque
the linear speed tangent to a curved path, such as in circula…
the number of rotations or revolutions per unit of time; ofte…
the property of an object that measures it resistance to any…
the product of force and lever arm distance, which tends to p…
Tangential speed
the linear speed tangent to a curved path, such as in circula…
Rotational speed
the number of rotations or revolutions per unit of time; ofte…
17 terms
Physics Rotational Motion
force
acceleration
velocity
formula for velocity
- center seeking... - directed towards the center of the circle…
- center seeking... - caused by centripetal force... - magnitude ma…
- tangent to the circular path... - direction in which object is…
distance/time
force
- center seeking... - directed towards the center of the circle…
acceleration
- center seeking... - caused by centripetal force... - magnitude ma…
10 terms
Physics rotational motion and gravity
tangential speed
rotational speed
rotational intertia
torque
the linear speed tangent to a curved path, such as in circula…
the number of rotations or revolutions per unit of time
that property of an object that measures its resistance to an…
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 circula…
rotational speed
the number of rotations or revolutions per unit of time
10 terms
physics rotational motion
what is the formula for arc length?
is counter-clockwise positive or negat…
what is the formula for angular veloci…
what is the formula for angular accele…
s = radius times feta
positive
change in the angle divided by change in time
change in angular velocity divided by change in time
what is the formula for arc length?
s = radius times feta
is counter-clockwise positive or negat…
positive
27 terms
Physics Quiz Rotational Motion
What type of unit is a radian?
When aren't the center of mass and cen…
Applying forces at COG causes...
Applying forces away from COG causes...
It isn't a unit; it's a ratio
In non-uniform gravitational areas, ie space/black holes
translational motion
rotational and possibly translational motion; torque
What type of unit is a radian?
It isn't a unit; it's a ratio
When aren't the center of mass and cen…
In non-uniform gravitational areas, ie space/black holes
Physics- Chapter 8: Rotational Motion
What the the units used to measure an…
A rotating disc has a knob on the edge…
The perpendicular distance from the ax…
In addition to the amount of mass pres…
Radian... Degree... Grad
Velocity
lever arm
location or moment of inertia
What the the units used to measure an…
Radian... Degree... Grad
A rotating disc has a knob on the edge…
Velocity
25 terms
Rotational and Projectile Motion Physics
none of these
remains unchanged
gravity is universal
two
a satellite in an elliptical orbit travels at constant
a rock is thrown upward at 30 degrees with respect to the hor…
newton discovered that
put a pipe over the end of a wrench when trying to turn a stu…
none of these
a satellite in an elliptical orbit travels at constant
remains unchanged
a rock is thrown upward at 30 degrees with respect to the hor…
Physics circular and rotational motion
Tangential speed
How a train stays on the tracks?
Rotational speed
Why the solid clylinder rolls down fas…
The linear speed tangent to a curved path.
A train comes with wheels that are tapered and as the left wh…
The property of an object to resist changes in state of rotat…
The solid cylinder rolls down faster than the hoop because of…
Tangential speed
The linear speed tangent to a curved path.
How a train stays on the tracks?
A train comes with wheels that are tapered and as the left wh…
32 terms
Physics Subject Test: Circular & Rotational Motion
When is an object moving in *uniform c…
Is speed constant in uniform circula…
Is velocity constant in uniform circ…
Is an object in uniform circular motio…
When it's moving in a circle at *constant speed*.
Yes.
No.... The speed is constant but the direction is always changing.
Yes.... Because the velocity is changing (the speed is constant,…
When is an object moving in *uniform c…
When it's moving in a circle at *constant speed*.
Is speed constant in uniform circula…
Yes.
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