Transcript IHS ppt 092710 ISA

Monday, September 27, 2010
Inkster High School
Integrated Science: Mrs. Gall
Hours 1 and 2
due tomorrow: Review for
Weds. quiz, makeup missing
work DUE WEDS.
Which are examples of constant
velocity? Gravity, a toy car on a ramp, a
book still on a table, a hockey puck
sliding across ice, a NASCAR pace car...
TLW describe and classify various
motions in a plane and represent linear
and circular motion on a graph and
through motion diagrams.
Monday, September 27, 2010
1. Silently Complete DO NOW and copy
homework.
2. Review Lesson Steps.
3. Discuss DO NOW in class.
4. Guided Notes- Review. Quiz Weds.
9/29
5. Finish Car/ ramp velocity lab if
needed.
6. Graded Work is returned.
7. Late work accepted until 9/29 at full
credit; by Friday, Oct. 1 for -25% late
credit. No Late work from Sept 1 – 24
accepted after Oct. 1.
8. Homework due tomorrow: Review
for Weds. quiz, makeup missing work
DUE WEDS.
Which are examples of constant velocity?
Gravity, a toy car on a ramp, a book still
on a table, a hockey puck sliding across
ice, a NASCAR pace car...
constant velocity?
acceleration?
ACCELERATION OCCURS WHEN SPEED OR DIRECTION OF SPEED ARE
CHANGING.
IF POSITION CHANGES BUT NOT DIRECTION OR SPEED (RATE OF
CHANGE) YOU’VE GOT CONSTANT VELOCITY...
GRAVITY: acceleration (not constant velocity)
toy car on ramp: not const. veloc.
book- sitting still on table: CONSTANT VELOCITY
HOCKEY PUCK: CONSTANT VELOCITY IF THERE IS NO FRICTION
NASCAR PACE CAR: CONST. VELOC. UNLESS DIRECTION
CHANGES
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Standard: ________ of Objects is an introduction to the topic, which will be further developed in Standard: Forces and Motion.
_____ indicates how fast something happens or how much something changes in a given period of time (elapsed _____). _______is
described by the rates of speed, ______, and ________. Speed is the rate at which an object is moving, or the total ________ covered over
a time interval. Given a specified _____interval (e.g., one hour), the distance covered is proportional to the speed. If the amount of ____ is
constant and speed increases, the distance traveled will increase. If time is constant, distance covered is proportional to rate. If time is
constant and the rate increases, distances traveled will increase.
________ is the speed of an object in a ___________). The change in speed can be either an increase or a decrease (negative ___________
or deceleration).
Speed and distance are _________ (a quantity that can be added, subtracted, multiplied, and divided like an ordinary number). Velocity
and acceleration are considered ________ quantities, because they take the direction of the motion into account in addition to magnitude.
They cannot simply be treated as an ordinary number. ___________ (the true measure from the starting point to the ending point rather
than the actual distance traveled) is also considered a vector quantity. For example, if a person walks around a square city block and comes
back to the starting point, the distance is 4 blocks and the ______ is 0. The use of the terms vector and scalar should be applied to
distinguish between the vector quantities of displacement, velocity, and acceleration and the scalar quantities of distance and ______.
Motion can be described by a change in ______ relative to a _________. The motion of an object can be described by its speed and the
________ it is moving. The position and speed of an object can be measured and graphed as a function of time.
Motion can be classified as ______________, ______________, ___________ or __________. One-dimensional motion is movement of an
object in a straight line. Two-dimensional motion is the movement of a projectile with both horizontal and vertical components.
__________ motion is movement of an object a given distance around a single point. Rotation is the spinning of an object when it turns
about its internal axis. Revolution is the _________ of an object as it turns (circles) around an external axis. For example, the spinning of
the Earth is ________ (takes 24 hours), while the Earth circling the Sun is _________ (takes 365.25 days). _________ motion is back-andforth movement of an object, such as a pendulum.
______ is a push or pull. ___________ is the original force. ________ force is the opposite and equal force. Gravitational force is
dependent upon an object’s mass. Centripetal force combined with ___________ causes objects to travel in a circular path.
Common Misconceptions Students may think that
speed and velocity are the same.
speed and acceleration are the same.
acceleration and velocity are the same.
the location of an object can be described by stating only its distance from a given point (ignoring direction)
the terms distance and displacement are synonymous and may be used interchangeably.
acceleration always means an object is speeding up.
acceleration is always in a straight line.
• QUIZ ROUGH DRAFT: INCLUDED FOR FORMAT
Common Misconceptions Students may think that
•speed and velocity are the same.
•speed and acceleration are the same.
•acceleration and velocity are the same.
•the location of an object can be described by stating
only its distance from a given point
(ignoring direction)
•the terms distance and displacement are
synonymous and may be used interchangeably.
•acceleration always means an object is speeding
up.
•acceleration is always in a straight line.
Key Concepts
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Rate
Motion
Velocity
Time interval
Distance
Acceleration
Scalar
Mrs. Gall’s study tips...
1. LOOK at the format of the text.
If any words are in bold or
italics, WRITE THOSE DOWN.
2. SKIM the text quickly. What
are the key ideas?
3. WRITE DOWN key vocabulary
words.
4. DON’T write down every word!
Standard: Motion of Objects is an introduction to the
topic, which will be further developed in Standard:
Forces and Motion.
Rate indicates how fast something happens or how
much something changes in a given period of time
(elapsed time). Motion is described by the rates of
speed, velocity, and acceleration. Speed is the rate at
which an object is moving, or the total distance covered
over a time interval. Given a specified time interval (e.g.,
one hour), the distance covered is proportional to the
speed. If the amount of time is constant and speed
increases, the distance traveled will increase. If time is
constant, distance covered is proportional to rate. If time
is constant and the rate increases, distances traveled will
increase.
Standard: Motion of Objects is an intro
for
example...
Rate=how fast somethg happens = how much it chgs in a
period of time (elapsed time).
Motion is descrb’d by the rates of speed, velocity, and
acceleration.
Speed = rate of object moving... OR total distance / time
interval.
In a time interval (ex: one hour), distance covered is
proportional (?) to speed. If amt of time is same & speed
incr’s
, the dist. travel’d will incr . If time is const.,
dist. is prop.(?) to rate. If time is const. & rate incr ,
dist’s traveled will incr.
WHAT NOW?
I saw the word “proportional” and
didn’t really see the point- so I
put a (?) by it.
-I should raise my hand and say
“What does proportional mean?”
or “Do I need to know anything
about the word proportional?”
-ALSO- I underlined a LOT of
words that were repeated. I can
study those.
WHAT NOW?
-ALSO- I underlined a LOT of
words that were repeated. I can
study those.
-I can make notecards
-I can write definitions
-I can write sentences
-I can draw pictures
-I can study with a friend- have
them quiz me to make sure I know
what those words mean
-I can try to use those words soon
Standard: Motion of Objects is an intro
for
example...
Rate=how fast somethg happens = how much it chgs in a
period of time (elapsed time).
Motion is descrb’d by the rates of speed, velocity, and
acceleration.
Speed = rate of object moving... OR total distance / time
interval.
In a time interval (ex: one hour), distance covered is
proportional (?) to speed. If amt of time is same & speed
incr’s
, the dist. travel’d will incr . If time is const.,
dist. is prop.(?) to rate. If time is const. & rate incr ,
dist’s traveled will incr.
main
ideas...
RATE: how fast, in
other words- a
division problem:
amount of
distance per time=
(d/t)= v= velocity
VELOCITY, SPEED:
how fast?
MOTION
TIME: slow or
fast changes?
ACCELERATION: is
speed changing
or constant?
SCALAR VS VECTOR
• SCALAR
• ONLY A NUMBER,
NO DIRECTION
• EXAMPLES:
DISTANCE, SPEED
• EXAMPLES: 3
METERS, 15 MPH
• VECTOR
• A NUMBER, AND
ALSO DIRECTION
• EXAMPLES:
DISPLACEMENT,
VELOCITY
• EXAMPLES: 3
METERS UP , 15
MPH EAST
Key Concepts
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Vector
Displacement
Point of reference
Speed
Direction
Position
One-Dimensional Motion
Velocity is the speed of an object in a given direction.
Acceleration is the rate at which velocity changes
(either a change in speed or a change in direction).
The change in speed can be either an increase or a
decrease (negative acceleration or deceleration).
Speed and distance are scalar (a quantity that can
be added, subtracted, multiplied, and divided like an
ordinary number). Velocity and acceleration are
considered vector quantities, because they take the
direction of the motion into account in addition to
magnitude. They cannot simply be treated as an
ordinary number. Displacement (the true measure
from the starting point to the ending point rather than
the actual distance traveled) is also considered a
vector quantity.
Key Concepts
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Two- Dimensional Motion
Circular Motion
Rotation
Revolution
Periodic motion
Force
Action force
Reaction
Mrs. Gall’s study tips...
1. Abbreviate as many words as
you can.
2. UNDERLINE any words or
ideas that the teacher says out
loud.
3. Ask another student to trade
notes. What did they see that
you missed?
4. READ your books or
handouts. Are you sure you
understand the main ideas?
For example, if a person walks around a square city
block and comes back to the starting point, the
distance is 4 blocks and the displacement is 0. The
use of the terms vector and scalar should be applied
to distinguish between the vector quantities of
displacement, velocity, and acceleration and the
scalar quantities of distance and speed.
Motion can be described by a change in position
relative to a point of reference. The motion of an
object can be described by its speed and the
direction it is moving. The position and speed of an
object can be measured and graphed as a function of
time.
Key Concepts
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Gravitational force
Centripetal force
Inertia
Positive Acceleration
Negative Acceleration
Positive Velocity
Negative Velocity
Unbalanced Forces
Mrs. Gall’s study tips...
1. LOOK at the format of the text. If any
words are in bold or italics, WRITE
THOSE DOWN.
2. SKIM the text quickly. What are the key
ideas?
3. WRITE DOWN key vocabulary words.
4. DON’T write every word.
5. Abbreviate as many words as you can.
6. UNDERLINE any words or ideas that the
teacher says out loud.
7. Ask another student to trade notes. What
did they see that you missed?
8. READ your books or handouts. Are you
sure you understand the main ideas?
9. ASK your teacher to explain further.
Motion can be classified as one-dimensional, twodimensional, circular, or periodic. One-dimensional
motion is movement of an object in a straight line.
Two-dimensional motion is the movement of a
projectile with both horizontal and vertical
components. Circular motion is movement of an
object a given distance around a single point.
Rotation is the spinning of an object when it turns
about its internal axis. Revolution is the motion of an
object as it turns (circles) around an external axis.
For example, the spinning of the Earth is rotation
(takes 24 hours), while the Earth circling the Sun is
revolution (takes 365.25 days). Periodic motion is
back-and-forth movement of an object, such as a
pendulum.
Key Concepts
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Velocity
Time interval
Distance
Acceleration
Scalar
Vector
Displacement
Force is a push or pull. Action force is the original
force. Reaction force is the opposite and equal force.
Gravitational force is dependent upon an object’s
mass. Centripetal force combined with inertia causes
objects to travel in a circular path.
•
•
•
•
•
•
•
•
•
•
•
•
•
•
Standard: ________ of Objects is an introduction to the topic, which will be further developed in Standard: Forces and Motion.
_____ indicates how fast something happens or how much something changes in a given period of time (elapsed _____). _______is
described by the rates of speed, ______, and ________. Speed is the rate at which an object is moving, or the total ________ covered over
a time interval. Given a specified _____interval (e.g., one hour), the distance covered is proportional to the speed. If the amount of ____ is
constant and speed increases, the distance traveled will increase. If time is constant, distance covered is proportional to rate. If time is
constant and the rate increases, distances traveled will increase.
________ is the speed of an object in a ___________). The change in speed can be either an increase or a decrease (negative ___________
or deceleration).
Speed and distance are _________ (a quantity that can be added, subtracted, multiplied, and divided like an ordinary number). Velocity
and acceleration are considered ________ quantities, because they take the direction of the motion into account in addition to magnitude.
They cannot simply be treated as an ordinary number. ___________ (the true measure from the starting point to the ending point rather
than the actual distance traveled) is also considered a vector quantity. For example, if a person walks around a square city block and comes
back to the starting point, the distance is 4 blocks and the ______ is 0. The use of the terms vector and scalar should be applied to
distinguish between the vector quantities of displacement, velocity, and acceleration and the scalar quantities of distance and ______.
Motion can be described by a change in ______ relative to a _________. The motion of an object can be described by its speed and the
________ it is moving. The position and speed of an object can be measured and graphed as a function of time.
Motion can be classified as ______________, ______________, ___________ or __________. One-dimensional motion is movement of an
object in a straight line. Two-dimensional motion is the movement of a projectile with both horizontal and vertical components.
__________ motion is movement of an object a given distance around a single point. Rotation is the spinning of an object when it turns
about its internal axis. Revolution is the _________ of an object as it turns (circles) around an external axis. For example, the spinning of
the Earth is ________ (takes 24 hours), while the Earth circling the Sun is _________ (takes 365.25 days). _________ motion is back-andforth movement of an object, such as a pendulum.
______ is a push or pull. ___________ is the original force. ________ force is the opposite and equal force. Gravitational force is
dependent upon an object’s mass. Centripetal force combined with ___________ causes objects to travel in a circular path.
Common Misconceptions Students may think that
speed and velocity are the same.
speed and acceleration are the same.
acceleration and velocity are the same.
the location of an object can be described by stating only its distance from a given point (ignoring direction)
the terms distance and displacement are synonymous and may be used interchangeably.
acceleration always means an object is speeding up.
acceleration is always in a straight line.
• QUIZ ROUGH DRAFT: INCLUDED FOR FORMAT