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Centripetal

Centripetal force

Centrifugal

Angular speed

Directed toward the center.

A force that causes an object to move in a circle

Moving away from the center

Angular speed = angle/time = "theta"/t

Centripetal

Directed toward the center.

Centripetal force

A force that causes an object to move in a circle

Rotation

Revolution

Axis

Period

Turning around an internal axis

Turning around an external axis

An imaginary line around through which turning takes place

The time to go around once; usually measured seconds

Rotation

Turning around an internal axis

Revolution

Turning around an external axis

What causes gravity?

Bigger mass = greater or lesser attrac…

How does the separation of the objects…

Why do astronauts feel weightless?

Masses are attracted to each other

greater

Distance matters. Gravitational force increases as mass incre…

because they're constantly in free fall but their horizontal…

What causes gravity?

Masses are attracted to each other

Bigger mass = greater or lesser attrac…

greater

Rotation

Revolution

Axis

Period

Turning around an internal axis

Turning around an external axis

An imaginary line around through which turning takes place

The time to go around once; usually measured seconds

Rotation

Turning around an internal axis

Revolution

Turning around an external axis

Centripical force

A ball is being whirled in a horizonta…

An object traveling in a circular path…

There is a direct relationship between

The force is directed towards the center of a circular path i…

It will keep traveling in a straight line

Be accelerating

Centripetal force and mass

Centripical force

The force is directed towards the center of a circular path i…

A ball is being whirled in a horizonta…

It will keep traveling in a straight line

axis

rotation

revolution

period (T)

- an imaginary line around which circular motion takes place

: turning around an internal axis... ex) earth's rotation

: turning around an external axis... ex) earth's revolution

- an action that repeats itself... unit- time-seconds (s)

axis

- an imaginary line around which circular motion takes place

rotation

: turning around an internal axis... ex) earth's rotation

Uniform Central Motion (UCM):

Centripetal

Centripetal Force:

Centripetal Acceleration

The motion of an object at a constant speed in a circular path.

center seeking

Net force directed towards the center of the circle- is a col…

acceleration towards the center that holds an object in orbit.

Uniform Central Motion (UCM):

The motion of an object at a constant speed in a circular path.

Centripetal

center seeking

Uniform circular motion

Cycle

Period

Linear velocity

The motion of an object traveling at a constant speed on a ci…

An interval of time during which a characteristic, often regu…

The time it takes to make one complete revolution.

Linear velocity is the rate of change of the position of an o…

Uniform circular motion

The motion of an object traveling at a constant speed on a ci…

Cycle

An interval of time during which a characteristic, often regu…

Amplitude

Acceleration

Kinematics

Terminal Velocity

angle made of maximum displacement from rest position

change in velocity over period of time

Branch of physics

resistant force of air increases as object falls through air…

Amplitude

angle made of maximum displacement from rest position

Acceleration

change in velocity over period of time

Uniform Circular Motion

Period (T)

Linear (tangential) velocity

Centripetal force does not....

motion in a circle at a constant speed

time for one cycle

The direction of the instantaneous velocity is tangent to the…

denote a new and separate force of nature

Uniform Circular Motion

motion in a circle at a constant speed

Period (T)

time for one cycle

gravity

superposition

Newton's Law of Universal Gravitation

line of action

Attractive force between two objects that depends on the mass…

principle that field forces add together like vectors

States that the force of gravity depends on the product of th…

an imaginary line in the direction of the force and passing t…

gravity

Attractive force between two objects that depends on the mass…

superposition

principle that field forces add together like vectors

Uniform Circular Motion (UCM)

Centripetal

Centripetal Force

Centripetal Acceleration

The motion of an object at a constant speed in a circular path.

Center seeking

Net force directed towards the center of a circle.... (A collect…

Acceleration towards the center that holds an object in orbit.

Uniform Circular Motion (UCM)

The motion of an object at a constant speed in a circular path.

Centripetal

Center seeking

gravity

Law of Universal Gravitation

mass

weight

(physics) the force of attraction between all masses in the u…

All matter is attracted to other matter by the force of gravi…

the amount of matter in an object

a measure of gravity's pull on an object

gravity

(physics) the force of attraction between all masses in the u…

Law of Universal Gravitation

All matter is attracted to other matter by the force of gravi…

axis

radius

circumference

rotation

an imaginary line about which a body rotates

a straight line from the center to the circumference of a cir…

the outer boundary, especially of a circular area; perimeter:…

the action of rotating around an axis or center.

axis

an imaginary line about which a body rotates

radius

a straight line from the center to the circumference of a cir…

Newton's 1st Law

What is required to move an object in…

Example of Circular Motion

Do objects moving in uniform circular…

an object in motion tends to stay in motion & an object at re…

unbalanced force

driving in a car with the steering wheel turned so that the c…

No, velocity has a magnitude and a direction and the directio…

Newton's 1st Law

an object in motion tends to stay in motion & an object at re…

What is required to move an object in…

unbalanced force

Velocity (circular)

Centripetal Force

Centripetal Force Equation

Centripetal Accelaration

the speed and direction of an object moving in a circle at an…

the unbalanced force needed to keep an object moving in a cir…

Fc = mv^2

the acceleration with which an object travels around a circle…

Velocity (circular)

the speed and direction of an object moving in a circle at an…

Centripetal Force

the unbalanced force needed to keep an object moving in a cir…

disk: greater tangential outer or inner?

disk: greater rotational speed outer o…

centripetal force

centrifugal force

outer, greater radius

same, same number of revolutions

center-seeking force, causes obj to follow circular path

center-fleeing, fictional force: not part of interaction

disk: greater tangential outer or inner?

outer, greater radius

disk: greater rotational speed outer o…

same, same number of revolutions

rotation

revolution

tangential speed

rotational speed

occurs when an object turns about on internal axis

occurs when an object turns about on external axis

speed of something moving in a circle

number of rotations per unit of time

rotation

occurs when an object turns about on internal axis

revolution

occurs when an object turns about on external axis

Circular Motion

Period

Tangential Velocity

Centripetal Force

Motion in a circle with constant speed and constant radius BU…

The period of a wave is the time for a particle on a medium t…

The velocity of the object is always tangential to the circle…

a force that makes a body follow a curved path

Circular Motion

Motion in a circle with constant speed and constant radius BU…

Period

The period of a wave is the time for a particle on a medium t…

Huygens

Newton

Young

Fresnel

supports wave theory, evidence: reflection and refraction

supports particle theory, evidence: prism

supports wave theory, evidence: double slit expirement

supports wave theory, evidence: mathematic equations entered…

Huygens

supports wave theory, evidence: reflection and refraction

Newton

supports particle theory, evidence: prism

In what direction is velocity for unif…

Describe two meanings of mass.

How is mass different from weight

Give an example to show that gravity i…

Tangent to the circle

Inertial (resistance to change) or gravitational (attractional)

Mass is the true amount of matter and does not depend on grav…

You don't feel attracted gravitational to another person

In what direction is velocity for unif…

Tangent to the circle

Describe two meanings of mass.

Inertial (resistance to change) or gravitational (attractional)

________ keeps the ball in a circle

______ keeps you in a circle on a track

any two objects that have mass have an…

found G

tension of string

friction

attractive force between them

cavendish

________ keeps the ball in a circle

tension of string

______ keeps you in a circle on a track

friction

A boy and a girl are ridimg on a merry…

An object moves in a circular path at…

Angular velocity units

Centripetal acceleration must involve…

Both have the same non-zero angular velocity

The vectors are perpendicular

Radians per second

An object's velocity

A boy and a girl are ridimg on a merry…

Both have the same non-zero angular velocity

An object moves in a circular path at…

The vectors are perpendicular

If the earth were hollow but still had…

If the earth were of uniform density,…

The gravitational force of attraction…

A ball of mass M at the end of a strin…

Your weight would be the same

Your weight would be less in the mineshaft

Doubling the mass of both objects, only

Doubling V and halving R

If the earth were hollow but still had…

Your weight would be the same

If the earth were of uniform density,…

Your weight would be less in the mineshaft

center of gravity

centripetal force

centrifugal force

falling bodies

-the point in an object where all the mass(weight) appears to…

-center seeking... -all goes to the center ... -the force that caus…

-fictitious force ... -not real... -caused by inertia... -decreases as…

bodies continues in a straight line unless another force acte…

center of gravity

-the point in an object where all the mass(weight) appears to…

centripetal force

-center seeking... -all goes to the center ... -the force that caus…

angular motion

radian

conversion from degrees to radians/ ra…

tachometer

angular motion is measured in degrees (°) or radians (rad) wh…

a radian is an angular measure scaled to the circle. there ar…

radians= degrees x (π/180), or degrees= radians x (180/π)

a device found in a car that measures the number of revolutio…

angular motion

angular motion is measured in degrees (°) or radians (rad) wh…

radian

a radian is an angular measure scaled to the circle. there ar…

Uniform circular motion

centripetal acceleration

frequency and period

centripetal force

-the speed is constant for uniform circular motion... -velocity…

(a = v/t)... θ = s/r = (v∆t)/r... a,c = (v^2/r)

-circumference of a circle of radius r is 2πr... -the period is…

-implies a ner centripetal force toward the center of the cir…

Uniform circular motion

-the speed is constant for uniform circular motion... -velocity…

centripetal acceleration

(a = v/t)... θ = s/r = (v∆t)/r... a,c = (v^2/r)

Circular Motion

speed

force

acceleration

circular motion is a term that defines an object's movement i…

the rate at which someone or something is able to move or ope…

any interaction which tends to change the motion of an object.

increase in the rate or speed of something

Circular Motion

circular motion is a term that defines an object's movement i…

speed

the rate at which someone or something is able to move or ope…

Degrees

Radian

Circumference

Tachometer

Angular motion is measured in radians or ___.

A ___ is an angular measure scaled to the circle. It is the a…

In one complete revolution, the arc length is the ____ of a c…

A ____ measures the number of revolutions per minute in a car.

Degrees

Angular motion is measured in radians or ___.

Radian

A ___ is an angular measure scaled to the circle. It is the a…

Rotation

Revolution

Linear Speed or Tangential Speed

Rotational Speed or Angular Speed

Object turns around an internal axis

Object turns around an external axis

Distance moved per unit of time, and greater on the outer edg…

Number of rotations per unit of time (RPM)

Rotation

Object turns around an internal axis

Revolution

Object turns around an external axis

rotation

revolution

period

frequency

circular motion with an internal axis of rotation

circular motion with an external axis of rotation

time to complete one cycle

number of cycles per time

rotation

circular motion with an internal axis of rotation

revolution

circular motion with an external axis of rotation

Centripetal acceleration

centripetal force

period

Kepler's law of planetary motion

acceleration toward the center of a circle

forces that act towards the center of a circle

time needed to repeat one cycle

behavior of planets and their satellites

Centripetal acceleration

acceleration toward the center of a circle

centripetal force

forces that act towards the center of a circle

Huygens

Newton

Hooke

Young

wave theory and said that light was a disturbance

particle theory and conducted prism experiment

wave theory and argued with Newton

wave theory and conducted the two slit experiment

Huygens

wave theory and said that light was a disturbance

Newton

particle theory and conducted prism experiment

gravity

falling at the same rate?

what effects strength of gravity

centripetal force

forces of attraction between all things

*Yes, if SAME SIZE... *...will be effected by wind/air resistance

1) mass of the objects... 2) distance between the objects

1) real... 2)forces objects in motion towards the center of a ci…

gravity

forces of attraction between all things

falling at the same rate?

*Yes, if SAME SIZE... *...will be effected by wind/air resistance

uniform circular motion

period

frequency

Hertz (Hz)

objects moving in circular paths at a constant speed

the time it takes to complete one full revolution at a consta…

the number of revolution per second (revs/time)

metric unit for frequency

uniform circular motion

objects moving in circular paths at a constant speed

period

the time it takes to complete one full revolution at a consta…

velocity

centripetal acceleration

period

frequency

although the speed of the particle is constant, its velocity…

a vector that is pointed toward the center of the circle... a=v^…

the time it takes an object to go around a circle one time, c…

the number of revolutions per second

velocity

although the speed of the particle is constant, its velocity…

centripetal acceleration

a vector that is pointed toward the center of the circle... a=v^…

4 Fundamental forces

Describe each force:... Gravity... Electroma…

Field Force differs from a contact for…

Describe a gravity field around the ea…

Gravity, Electromagnetic, Weak Nuclear, Strong Nuclear

Gravity - The force of attraction between two objects that ha…

Field force doesn't have to contact with the object to apply…

A weaker force farther away from earth, but as it gets closer…

4 Fundamental forces

Gravity, Electromagnetic, Weak Nuclear, Strong Nuclear

Describe each force:... Gravity... Electroma…

Gravity - The force of attraction between two objects that ha…