Archive for October, 2010

Pressure Day 5

Agenda:

  • Review mar032
  • Quia Quiz
  • Password Review

Homework:

Collected Work: mar032

Test Review:Motion Chapter 3 Study GuidePhysics Ch 3 Student EssentialsMotion Vocabulary Chapter 3 revised

Make-Up Work/Extra-Credit:Gravity Racer Design Worksheet 2read_metric_ruler-mmmetric length conversion

_____________________________________________________________

Bell Ringer: 100N / 25m2; 150N / .001m2

_____________________________________________________________

Class notes: Copy into spiral notebook:

Matter of the day: Mentos

Diagram:


What it is: 
  • .
Why it Matters:
  • Lowering pressure by spreading out the force of weight.
_____________________________________________________________
Vocabulary:
force: a push or pull
Pressure = force ÷ area
Pascal is a unit of pressure

Essentials:

41. Pressure is force spread over an area

42. Pressure depends on the mass above the point being measured. (fluid pressure or in a gravity well like on Earth.)

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Pressure Day 4

Agenda:

  • Review mrr31
  • Pressure Math
  • activities

Homework:mar032-2000Chap3-S3

Collected Work: mgr31

Test Review:Motion Chapter 3 Study GuidePhysics Ch 3 Student EssentialsMotion Vocabulary Chapter 3 revised

Make-Up Work/Extra-Credit:Gravity Racer Design Worksheet 2read_metric_ruler-mmmetric length conversion

_____________________________________________________________

Bell Ringer: 100N / 25m2; 150N / .001m2

_____________________________________________________________

Class notes: Copy into spiral notebook:

Matter of the day: Mentos Geyser

Diagram:


What it is: 
  • Carbon dioxide is quickly built up. The moving gas particles create a huge amount of pressure: creating the geyser
Why it Matters:
  • Moving particles bouncing off of surfaces cause fluid pressure.
_____________________________________________________________
Vocabulary:
force: a push or pull
Pressure = force ÷ area
Pascal is a unit of pressure

Essentials:

41. Pressure is force spread over an area

42. Pressure depends on the mass above the point being measured. (fluid pressure or in a gravity well like on Earth.)

Pressure Day 3

Agenda:

  • Review mgr31
  • Pressure Math

Homework:mrr31

Collected Work: mgr31

Test Review:Motion Chapter 3 Study GuidePhysics Ch 3 Student EssentialsMotion Vocabulary Chapter 3 revised

Make-Up Work/Extra-Credit:Gravity Racer Design Worksheet 2read_metric_ruler-mmmetric length conversion

_____________________________________________________________

Bell Ringer: Quizlette:

_____________________________________________________________

Class notes: Copy into spiral notebook:

Matter of the day: Skis

Diagram:


What it is: 
  • Force is spread out over a large area.
Why it Matters:
  • Lowering pressure by spreading out the force of weight.
_____________________________________________________________
Vocabulary:
force: a push or pull
Pressure = force ÷ area
Pascal is a unit of pressure

Essentials:

41. Pressure is force spread over an area

42. Pressure depends on the mass above the point being measured. (fluid pressure or in a gravity well like on Earth.)

Pressure Day 2

Agenda:

Homework: mgr31 Read Chapter 3 Section 1 Page 78 questions are in chapter order.

Collected Work: NyePressureQuiz

Test Review:

Make-Up Work/Extra-Credit:Gravity Racer Design Worksheet 2read_metric_ruler-mmmetric length conversion

_____________________________________________________________

Bell Ringer: Quizlette: List 3 things do you learned about pressure.

_____________________________________________________________

Class notes: Copy into spiral notebook:

Matter of the day: Pressure Washer

Diagram:


What it is: 
  • Force is concentrated in a small area.
Why it Matters:
  • Increased pressure gets into the cracks and increases force in a small area.
_____________________________________________________________
Vocabulary:
force: a push or pull
Pressure = force ÷ area
Pascal is a unit of pressure

Essentials:

41. Pressure is force spread over an area

42. Pressure depends on the mass above the point being measured. (fluid pressure or in a gravity well like on Earth.)

Pressure Day 1

Agenda:

Homework: PH 3.1 Pressure Adapted Reading

Collected Work: NyePressureQuiz

Test Review:

Make-Up Work/Extra-Credit:Gravity Racer Design Worksheet 2read_metric_ruler-mmmetric length conversion

_____________________________________________________________

Bell Ringer: Quizlette: What do you know about pressure.

_____________________________________________________________

Class notes: Copy into spiral notebook:

Matter of the day: balloon racer

Diagram:


What it is: 
  • Air pressure inside is higher. It rushes out through the holetowards lower pressure.
Why it Matters:
  • Newton scooters use the action reaction forces.
_____________________________________________________________
Vocabulary:
 
force: a push or pull

Essentials:

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

Newton’s Laws Day 4

Agenda:

  • TextReviewChap1-2 Picture-Dictionary Assignment: Key Words
    • Cartooning the essentials
  • Reading: Momentum Problems
  • Momentum and force calculations.

Homework: Newton ScooterTesting Grounds, mar024

Collected Work: forces key terms word search review Chapter 2

Test Review: TextReviewChap1-2 Phy Ch 2 Vocab-1MotionChap1VocabScience Essential Knowledge List,Trivial Pursit Forces-Force Arrows, :

Make-Up Work/Extra-Credit:Gravity Racer Design Worksheet 2read_metric_ruler-mmmetric length conversion

_____________________________________________________________

Bell Ringer: Quizlette: Sumo

_____________________________________________________________

Class notes: Copy into spiral notebook:

Matter of the day: conservation of momentum

Diagram:


What it is: 
  • Momentum is the same before and after a collision. It is just given to the thing crashed into.
Why it Matters:
  • Big Mo Gravity racer transfers momentum into foam block.
_____________________________________________________________
Vocabulary:

Newtons 3 Laws of Motion

  1. 1st Law: Inertia:
    • Body at rest stays at rest stays at rest
    • Body in motion stays in motion
    • unless a forces changes its motion
  2. 2nd Law: force =mass  •  acceleration
    • to increase a force, you can
    • increase mass
    • or increase acceleration
  1. 3rd Law: Action – Reaction
    • For every action
    • there is a reaction
    • that is equal and opposite

Momentum is like the potential to push or pull.

  • momentum = mass  •  velocity
Friction: The force that two surfaces exert on each other when they rub against each other
  • Fluid: when a solid object moves through a fluid
  • Static: acts on objects that are not moving
  • sliding: when two solid surfaces slide over each other
  • rolling: When an object rolls across a surface
Gravity: force that pulls objects toward each other
Mass: the amount of stuff in something
Weight: the pull of gravity on an object
  • Two factors affect the gravitational attraction between objects: mass and distance
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.)
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.)

GravityRacersInvestigatingMotionDesignChallengeWorksheet

1st competition-velocity-fastest down the 1-meter/3-foot ramp
2nd competition-inertia/friction-furthest from base of ramp
3rd competition-momentum-pushes a foam block the furthest from base of ramp

  • No more than 15cm x 15cm (6 inches longxwide)
  • may not use pre-made car kit parts for the frame/body
  • may use generic (non-car) building toy sets like LEGO, k’Nex, Magnetix, Erector, etc.
  • may decorate with anything you like
  • may use toy wheels, bottle caps, or any other round objects for wheels (dollar/bargain/thrift stores & garage sales are great sources for stuff)
  • gravity powered only: may not have any drive/propulsion motors/balloons/rubber bands/springs, etc.

Newton’s Laws Day 4

Agenda:

Make-Up Work/Extra-Credit:Gravity Racer Design Worksheet 2read_metric_ruler-mmmetric length conversion

_____________________________________________________________

Bell Ringer: Quizlette: Sumo

_____________________________________________________________

Class notes: Copy into spiral notebook:

Matter of the day: Big Old Jet Airliners

Diagram:


What it is: 
  • A machine that blows air out the back
Why it Matters:
  • Balloons are like little limited power jets.
_____________________________________________________________
Vocabulary:

Newtons 3 Laws of Motion

  1. 1st Law: Inertia:
    • Body at rest stays at rest stays at rest
    • Body in motion stays in motion
    • unless a forces changes its motion
  2. 2nd Law: force =mass  •  acceleration
    • to increase a force, you can
    • increase mass
    • or increase acceleration
  1. 3rd Law: Action – Reaction
    • For every action
    • there is a reaction
    • that is equal and opposite

Momentum is like the potential to push or pull.

  • momentum = mass  •  velocity
Friction: The force that two surfaces exert on each other when they rub against each other
  • Fluid: when a solid object moves through a fluid
  • Static: acts on objects that are not moving
  • sliding: when two solid surfaces slide over each other
  • rolling: When an object rolls across a surface
Gravity: force that pulls objects toward each other
Mass: the amount of stuff in something
Weight: the pull of gravity on an object
  • Two factors affect the gravitational attraction between objects: mass and distance
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.)
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.)

GravityRacersInvestigatingMotionDesignChallengeWorksheet

1st competition-velocity-fastest down the 1-meter/3-foot ramp
2nd competition-inertia/friction-furthest from base of ramp
3rd competition-momentum-pushes a foam block the furthest from base of ramp

  • No more than 15cm x 15cm (6 inches longxwide)
  • may not use pre-made car kit parts for the frame/body
  • may use generic (non-car) building toy sets like LEGO, k’Nex, Magnetix, Erector, etc.
  • may decorate with anything you like
  • may use toy wheels, bottle caps, or any other round objects for wheels (dollar/bargain/thrift stores & garage sales are great sources for stuff)
  • gravity powered only: may not have any drive/propulsion motors/balloons/rubber bands/springs, etc.
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