Archive for September, 2010

Forces Day 1

Agenda:

Make-Up Work/Extra-Credit:, read_metric_ruler-mmmetric length conversion

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Bell Ringer: What sorts of things can be used to make a model car?

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Class notes: Copy into spiral notebook:

Matter of the day: Strong-Man Game

Diagram:

What it is:  The force of a hammer blow flings a ringer towards a bell.
Why it Matters: Forces change motion in matter.
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Vocabulary:
force: a push or pull
balanced force: when two opposite forces add to zero (no net/combined force or push/pull)
unbalanced force: when two opposite forces are not equal (there is a net/combined force or push/pull)
net force: the remainder force when two unequal and opposite forces do not cancel out completely
inertia: matter resists a change in motion (things at rest stay at rest, things in motion stay in motion, unless acted on by an outside force.)
mass: how much matter is in something
force arrows: used to show the direction and strength of a force: bigger is stronger

Essentials:

36.A force is a push or a pull (i.e. balanced and unbalanced forces).

37.Mass is the amount of matter in an object. (matter is stuff, not energy)

38.Weight is the measure of the force of gravity upon an object. (i.e. you are lighter on the moon, but your mass is the same.)

39.Newton’s first law of motion (aka, the Law of Inertia) states that an object at rest remains at rest1 and an object will remain in motion2 unless acted upon by an unbalanced force3. (i.e.something doesn’t move unless you push it1,3and something doesn’t turn unless you push it2,3.)

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Science

Test Retakes/Newton Pamphlet Enrichment Extra Credit

Homework: Page 1 from Phy Ch 2 Vocab-1

Forces & Motion review for tomorrow’s test.

Agenda:

Homework: Review homework from last week for tomorrow’s test

Quia online activities practice. Try activities athttp://etorgerson.net/ForcesMotionLabs.html

Collected Work: AccelAR13

Test Review: Chap 1 Review WorksheetMotionChap1VocabScience Essential Knowledge List,

Make-Up Work/Extra-Credit:, read_metric_ruler-mmmetric length conversion

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Bell Ringer: A car starts at 0 meters/second and ends up at 34 meters/second 2 seconds later. What is its acceleration?

_____________________________________________________________

Class notes: Copy into spiral notebook:

Matter of the day: Wii Controller: Accelerometer

Diagram:

What it is: Changes in motion flick a tiny 3 dimensional switch called an accelerometer.
Why it Matters: They are used in cars to set off safety devices like airbags.
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Vocabulary: For Test
Vocabulary:
acceleration-when something changes its velocity
  • speeds up
  • slows down
  • turns

Average speed- From beginning to end

InstantaneousSpeed- at any point in between

  • motion-when something changes its distance from a –
  • motionsensor-a reference pointreference point- a place or object used for comparison to determine if something is in motion
  • Speed is a rate of distance traveled in time.
  • Velocity is speed in a given direction.
  • speed = distance / time
  • time = distance / speed
  • distance = speed * time
  • Formula: an equation that can be used with any data to find a value.
  • Variable:  letters or words used in formulae to stand in for data values.
  • An object is in motion if it changes position relative to a reference point.
  • S.I. Units or metric system- a base-10 system of standard measurements.
  • meters- distance
  • time- seconds
  • milli-one thousandth
  • centi- one hundredth
  • kilo- 1000 of something

Acceleration Quiz

Agenda:

Homework: Quia online activities practice. Try activities at http://etorgerson.net/ForcesMotionLabs.html

Collected Work: AccelAR13

Test Review: Chap 1 Review Worksheet, MotionChap1VocabScience Essential Knowledge List, Phy Ch 1 Memory Cards, Phy Ch1 Vocab Grid

Make-Up Work/Extra-Credit:, read_metric_ruler-mmmetric length conversion

_____________________________________________________________

Bell Ringer: A car starts at 0 meters/second and ends up at 34 meters/second 2 seconds later. What is its acceleration?

_____________________________________________________________

Class notes: Copy into spiral notebook:

Matter of the day: Football Head Injuries

Diagram:

What it is: The acceleration from lots of small hits and tackles may cause brain injuries.
Why it Matters: Gravity’s acceleration is the same for all.
_____________________________________________________________
Vocabulary: For Test
Vocabulary:
acceleration-when something changes its velocity
  • speeds up
  • slows down
  • turns

Average speed- From beginning to end

InstantaneousSpeed- at any point in between

  • motion-when something changes its distance from a –
  • motionsensor-a reference pointreference point- a place or object used for comparison to determine if something is in motion
  • Speed is a rate of distance traveled in time.
  • Velocity is speed in a given direction.
  • speed = distance / time
  • time = distance / speed
  • distance = speed * time
  • Formula: an equation that can be used with any data to find a value.
  • Variable:  letters or words used in formulae to stand in for data values.
  • An object is in motion if it changes position relative to a reference point.
  • S.I. Units or metric system- a base-10 system of standard measurements.
  • meters- distance
  • time- seconds
  • milli-one thousandth
  • centi- one hundredth
  • kilo- 1000 of something

Chapter 1 Review: Motion & Acceleratio

Agenda:

Homework: Side MeasuringMotionRRr11

Collected Work: AccelAR13

Test Review: MotionChap1VocabScience Essential Knowledge List,

Make-Up Work/Extra-Credit:, read_metric_ruler-mmmetric length conversion

_____________________________________________________________

Bell Ringer: A plane startsat 0 meters/second and ends up at 200 meters/second 20 seconds later. What is its acceleration?

_____________________________________________________________

Class notes: Copy into spiral notebook:

Matter of the day: Galileo’s Tower

Diagram:

What it is: Galileo dropped large/small and heavy/light objects from a tower.
Why it Matters: Gravity’s acceleration is the same for all.
_____________________________________________________________
Vocabulary: For Test
Vocabulary:
acceleration-when something changes its velocity
  • speeds up
  • slows down
  • turns

Average speed- From beginning to end

InstantaneousSpeed- at any point in between

  • motion-when something changes its distance from a –
  • motionsensor-a reference pointreference point- a place or object used for comparison to determine if something is in motion
  • Speed is a rate of distance traveled in time.
  • Velocity is speed in a given direction.
  • speed = distance / time
  • time = distance / speed
  • distance = speed * time
  • Formula: an equation that can be used with any data to find a value.
  • Variable:  letters or words used in formulae to stand in for data values.
  • An object is in motion if it changes position relative to a reference point.
  • S.I. Units or metric system- a base-10 system of standard measurements.
  • meters- distance
  • time- seconds
  • milli-one thousandth
  • centi- one hundredth
  • kilo- 1000 of something

Gravity and Acceleration

Agenda:

Homework: AccelAR13

Collected Work: Graphs

Test Review: MotionChap1VocabScience Essential Knowledge List,

Make-Up Work/Extra-Credit:, read_metric_ruler-mmmetric length conversion

_____________________________________________________________

Bell Ringer: What can cause an object to change speed or direction?

_____________________________________________________________

Class notes: Copy into spiral notebook:

Matter of the day: Drag Racing

Diagram:

What it is:  A race that starts from 0 km/hr and goes up over 200 km/hr.
Why it Matters: A drag racer speeds up/accelerates throughout the race.
  1. It speeds up as it falls
  2. It slows to a stop.
  3. It changes direction.
_____________________________________________________________
Vocabulary: For Test
  • motion-when something changes its distance from a –
  • motionsensor-a reference pointreference point- a place or object used for comparison to determine if something is in motion
  • Speed is a rate of distance traveled in time.
  • Velocity is speed in a given direction.
  • speed = distance / time
  • time = distance / speed
  • distance = speed * time
  • Formula: an equation that can be used with any data to find a value.
  • Variable:  letters or words used in formulae to stand in for data values.
  • An object is in motion if it changes position relative to a reference point.
  • S.I. Units or metric system- a base-10 system of standard measurements.
  • meters- distance
  • time- seconds
  • milli-one thousandth
  • centi- one hundredth
  • kilo- 1000 of something
Vocabulary:
acceleration-when something changes its velocity
  • speeds up
  • slows down
  • turns

Average speed- From beginning to end

InstantaneousSpeed- at any point in between

Acceleration & Gravity Day 1030.01

Make-Up Work/Extra-Credit:, read_metric_ruler-mmmetric length conversion

_____________________________________________________________

Bell Ringer: What can cause an object to change speed or direction?

_____________________________________________________________

Class notes: Copy into spiral notebook:

Matter of the day: Super Ball-Acceleration

Diagram:

What it is:  Rubber super balls absorb force and rebound.
Why it Matters: A bouncing ball shows all 3 types of acceleration.
  1. It speeds up as it falls
  2. It slows to a stop.
  3. It changes direction.
_____________________________________________________________
Vocabulary: For Test
  • motion-when something changes its distance from a –
  • motionsensor-a reference pointreference point- a place or object used for comparison to determine if something is in motion
  • Speed is a rate of distance traveled in time.
  • Velocity is speed in a given direction.
  • speed = distance / time
  • time = distance / speed
  • distance = speed * time
  • Formula: an equation that can be used with any data to find a value.
  • Variable:  letters or words used in formulae to stand in for data values.
  • An object is in motion if it changes position relative to a reference point.
  • S.I. Units or metric system- a base-10 system of standard measurements.
  • meters- distance
  • time- seconds
  • milli-one thousandth
  • centi- one hundredth
  • kilo- 1000 of something
Vocabulary:
acceleration-when something changes its velocity
  • speeds up
  • slows down
  • turns

Average speed- From beginning to end

InstantaneousSpeed- at any point in between

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