77 True/False questions

what is the greek letter used to represent angular velocity → theta

what type of circular motion does rpm apply to → both rotation and revolution

what equations can be us to caluclate angular velocity → omega= theta/seconds or rad/seconds

provide a natural example of rotation → MerryGoRound

tangent → the direction of a planet's momentum while in orbit

day → mv^2/radialdistance

equation for theoretical speed of the pig → v=d/t=2(pi)(r)/t

how many degrees are in a radian → 360

radius → half of a diameter

centripetal → the direction of gravitational pull of sun on the earth

accelerometer → a device that measures acceleration

T or F
we only see one side of the moon → v=d/t=2(pi)(r)/t 
how would relative simulated gravity of a rotating space station change if
a)it had twice the radius
b)it had twice the angular velocity
C)it had twice the radius and twice the angular velocity → a)2xa
b)4xa
c)8xa 
revolution → spinning with axis inside a system

provide a manmade example of rotation → Earth Day (24hours)

1rpm= → acronym for revolutions per minute (equal to .105 rad/s)

what is the direction of a can's inertia that is whirled in a circle by a string → radial

Ty= → mv^2/radialdistance

what proportionality exists between angular velocity x radius and linear velocity → direct

what day are we furthest from the sun → January 3

what is an accelerometer → a radian is an angle measure equal to a radius around a circle

list sources of error for pig lab → timing not precise
didn't find the exact point at which the hypotenuse reaches the other leg of the triangle with the laser 
how did the pig overcome air friction → the pig overcomes air friction by flapping its wings. this creates a centripetal force on the pig which in turn counters friction

what is the direction of a centripetal force → inward

radial → angle measure equal to length of radius around the circumference of a circle (57.3 degrees)

what type(s) of circular motion does a carousel horse 2m from the axis experience → both rotation and revolution

what type of circular motion does a person stand on Earth's north pole experience → year

which of these statements is true
a) 360degrees=6.28radians
b) 1rpm=.105rad/s
c) 1radian=57.3degrees
d) all of these → d)all of these 
what is the greek letter used to represent degrees or radians → inward

what is pie nine places past decimal → 3.141592654

centrifugal → an apparent center fleeing effect

what techniques for measuring r and theta would you recommend for best results → theta

pi → acronym for revolutions per minute (equal to .105 rad/s)

equation for computing the speed of the pig → July 3

axis → half of a diameter

how many radians are in a circle → 6.28

how are the wheels of a railroad car designed in order for them to turn at different speeds → > diameter in

what is the direction of Earth's inertia as it travels around the Sun → tangent

what day are we closest to the sun → July 3

how many degrees are in a circle → 360

which has a great angular velocity, a horse near the outside of a carousel or the one near the inside → the have the same

what do you conclude about the direction of the net force that keeps the flying pig in uniform circular motion → inward

which carousel horse has greater centripetal force
a) outside
b) inside
c) outside=inside → d)78rpm 
which has the greater linear velocity, a horse near the outside of a carousel or one near the inside → the have the same

moonth → one earth revolution equal to 365.25 days

which of the following is a unit of angular velocity
a) degrees/second
b) rad/second
c) rpm
d) all of these
e) none of these → all of these 
how does rotation differ from revolution → (oe)/e (100)

earth rotates and revolves through space. earth rotates about the ______, which is an _______ axis. Earth revolves about the ______, which is an ________ axis. → north/south pole, internal, Sun, external

angular → a merrygoround

LP → long play record with 33.3rpm

equation used to calculate the omega and linear velocity of earth's rotation → omega=theta/t
v=omega(r) 
what is the direction of a centrifugal effect → inward

which record has the greatest angular velocity
a) 16rpm
b) 33.3 rpm
c) 45rpm
d) 78rpm → a) outside 
what is a radian → the direction of gravitational pull of sun on the earth

what are all motion calculations relative to → a device that measures acceleration

1.61km= → mg

percent difference equation → spinning with axis outside of a system

what causes the centrifugal effect → an apparent center fleeing effect

circle → 360 degrees of 6.28 radians

provide a manmade example of revolution → MerryGoRound

what is the direction of the gravitational forces between Earth and the Sun → radial

compare and contrast centripetal force and centrifugal effect and supply examples of each → centrifugal effect is a center fleeing tendency of an object to fly away from center, centripetal is the opposite. It is a center seeking force. example of centrifugal effect is in a car when tangential inertia and a centripetal force are acting upon an object it creates the centrifugal effect in which if you turn left the passenger will scoot towards the door. An example of centripetal force is when you spin a can on a string that enforces it to stay in circular motion.

rotation → spinning with axis inside a system

rpm → .105 rad/s

radian → angle measure equal to length of radius around the circumference of a circle (57.3 degrees)

what is true about our Moon's circular motion
a) rotation>revolution
b) rotation<revolution
c) rotation=revolution → rotation=revolution 
for uniform circular motion the centripetal force will always be _______ the tension in the string → greater than

Tx= → mg

why are radians used in circular motion calculations → because 6.28 radians = 360 degrees = number of degrees in a circle.

which type of circular motion for the earth is known as a revolution → MerryGoRound

diameter → the distance across a circle

provide a natural example of revolution → Earth Day (24hours)

which end of a tapered cup rolls faster when it completes a circle → road pushes tire

year → one earth revolution equal to 365.25 days

what supplies the centripetal force when a car turns in a circle → inward

for circular motion the tension will always be _______ the weight → greater than

carousel → 360 degrees of 6.28 radians