NOTES OUT 1-3 Forces and Newtons.doc

Unit 2 – Outcome 1-3 I. Outcome 1-3 – Forces and Newtons

A) Force – A push or pull that will:

1) give an object motion OR

2) take motion away from an object OR

3) change the direction of an object’s motion.

B) Friction ~ Forces that oppose motion. They attempt to bring moving object to rest. (Types of friction on pgs. 119-123)

C)

Outcomes 1-3: NEWTON’S LAWS OF MOTION

1) Outcomes 1-3 Newton’s Laws of Motion … SCIENTIFICALLY:

a) OUTCOME 1:Newton’s 1st _{Law ~ An object in motion or}

at rest will remain that way unless a force acts upon it OR

Objects tend to do what they are already doing. Examples: A ball thrown on earth …

A ball thrown in outerspace …

+ Inertia ~ Objects resist a change in motion.

An object’s inertia is determined the object’s mass.

b) OUTCOME 2:Newton’s 2nd _{Law ~ Force = mass X}

acceleration.

Newton’s Law of Motion…SUMMARIZED 1) Newton’s 1st _{Law ~ “Objects are}

lazy.”

2) Newton’s 2nd _{Law ~ “May the Forces}

be with you.”

3) Newton’s 3rd _{Law ~ E& O - “Equal &}

Opposite.”

c)OUTCOME 3:Newton’s 3 _Lawrd _{~ For every action force}

there is an equal and opposite reaction force. + This law relates to ALL objects changing motion.

Action – Reaction Pairs – The motion (force or momentum) of one object is applies to another object.

Unit 2 – Outcome 1-3

I. Outcome 1-3 – Forces and

Unit 2 – Outcome 1 - 3

I. Outcome 1-3 – Forces and

Newtons

I. Outcome 1-3 – Forces and Newtons A) Force – A push or pull that will:

1) give an object

motion

I. Outcome 1-3– Forces and Newtons A) Force – A push or pull that will:

1) give an object motion OR

2)

take

motion away

from

A) Force – A push or pull that will:

1) give an object motion OR

2) take motion away from an object OR

3)

change the direction

of

A) Force – A push or pull that will:

1) give an object motion OR

2) take motion away from an object OR

3) change the direction of an object’s motion.

B) Friction

~ Forces that

A) Force – A push or pull that will:

1) give an object motion OR

2) take motion away from an object OR

3) change the direction of an object’s motion.

B) Friction ~ Forces that oppose motion.

They attempt to

bring

moving objects to rest

.

Types of friction

pgs. 119-123

:

B) Friction ~ Forces that oppose motion. They attempt to bring moving object to rest. (Types of friction on pgs. 119-123)

C) Outcomes 1-3: NEWTON’S LAWS

OF MOTION

Newton’s Law of Motion…SUMMARIZED

1) Newton’s 1

_{Law ~ “}

Objects are

B) Friction ~ Forces that oppose motion. They attempt to bring moving object to rest. (Types of friction on pgs. 119-123)

C) Outcomes 1-3: NEWTON’S LAWS

OF MOTION

Newton’s Law of Motion…SUMMARIZED

1) Newton’s 1

_{Law ~ “Objects are lazy.”}

2) Newton’s 2

_{Law ~ “}

May the

Forces

C) Outcomes 1-3: NEWTON’S LAWS

OF MOTION

Newton’s Law of Motion…SUMMARIZED

1) Newton’s 1

_{Law ~ “Objects are lazy.”}

2) Newton’s 2

_{Law ~ “May the Forces be}

with you.”

3) Newton’s 3

_{Law ~ A.R - “}

B) Friction ~ Forces that oppose motion. They attempt to bring moving object to rest. (Types of friction on pgs. 119-123)

C) Outcomes 1-3: NEWTON’S LAWS

OF MOTION

1) Newton’s Laws of Motion …

SCIENTIFICALLY explained:

A)

OUTCOME 1

: Newton’s 1

st

Law

~

(Law of

Inertia

)

Newton’s 1st _{Law (4:15): http://www.youtube.com/watch?v=pxWHWOYVov4}

An object in

motion or at

rest

will remain that way

unless a

force acts upon it

.

OR

Newton’s Law of Motion…SUMMARIZED 1) Newton’s 1st _{Law ~ “Objects are}

lazy.”

2) Newton’s 2nd _{Law ~ “May the Forces}

be with you.”

3) Newton’s 3rd _{Law ~ A.R -}

1) Newton’s Laws of Motion … SCIENTIFICALLY:

a) OUTCOME 1:Newton’s 1st _{Law ~ (Law of Inertia)}

An object in motion or at rest will remain that

way unless a force acts upon it.

OR

Objects tend to continue to do

what they are already

doing

(resting or moving)

Newton’s Law of Motion…SUMMARIZED 1) Newton’s 1st _{Law ~ “Objects are}

lazy.”

2) Newton’s 2nd _{Law ~ “May the Forces}

be with you.”

3) Newton’s 3rd _{Law ~ A.R. - “Action-}

1) Newton’s Laws of Motion … SCIENTIFICALLY:

a) OUTCOME 1: Newton’s 1st _{Law ~ (Law of Inertia) An}

object in motion or at rest will remain that way unless a force acts upon it.

OR Objects tend to do what they are

already doing.

+ Inertia ~ Objects

resist a

change in motion

.

1) Newton’s Laws of Motion … SCIENTIFICALLY:

a) OUTCOME 1: Newton’s 1st _{Law ~ (Law of Inertia) An}

object in motion or at rest will remain that way unless a force acts upon it.

OR Objects tend to do what they are

already doing.

+ Inertia ~ Objects resist a change in motion.

+ Inertia ~ Objects resist a change in motion.

An object’s inertia is determined by the object’s mass.

Examples:

A ball thrown on earth …

A ball thrown in

b)

Outcome 2

Newton’s 2

nd

Law

~

Newton’s 2nd _{Law (3:00): http://www.youtube.com/watch?v=iwP4heWDhvw}

Force =

mass X

acceleration

.

** Unit for Force =

Example 2: A 16 kg bicycle

crashes into a wall with a

force of 320 N. What was the

acceleration?

Example 3: A large box hits

the floor with a force of 530

N after accelerating at 8.4

m/s

2

_{. What is the box’s}

Newton’s Law of Motion…SUMMARIZED

1) Newton’s 1

_{Law ~ “Objects are lazy.”}

2) Newton’s 2

_{Law ~ “May the Forces be}

with you.”

3) Newton’s 3

_{Law ~ A.R. - “Action-}

c)

Outcome 3

Newton’s 3

rd

Law –

For every

action

force

there is an

equal

AND

opposite reaction action

3) Newton’s 3rd _{Law – For every force there is an equal and}

opposite reaction force.

+ Newton’s 3

rd

_{law relates to}

3) Newton’s 3rd _{Law – For every action force there is an equal}

and opposite reaction force.

+ Newton’s 3rd _{law relates to ALL objects that are}

changing motion.

Action – Reaction

Pairs – The

motion

(

force

or

momentum

)

of one object is

applied to

another

object

.

Example 2: