Download Newton`S Laws Guided Notes

Newton’s Laws
Guided Notes
Name________________________
Class Period___________
Essential Questions
• Who was Sir Isaac Newton?
• What are Newton’s three Laws of Motion?
• How do Newton’s Laws affect motion?
Key Vocabulary:
• Force – __________ or __________ exerted/put on an object, a
_______or_______ that causes a _______________ of an object.
• Acceleration – ____________________________________
• Velocity – the __________of__________ with which something happens
• Speed – ________________________________
• Friction – the ______________ of movement on surfaces that touch.
• Mass – the ___________of____________ in an object.
• Gravity – the __________of___________________ that moves bodies
towards the __________ of the earth.
• Inertia – the__________ of a body to preserve its state of rest or motion
unless acted upon by an __________force.
• Newton (N) – the _____for the ________of________ an object contains.
• Traction – a kind of ____________ that allows __________to turn
____________ ___________ on a surface.
• Weight – a _______________ of the _____________ of an object.
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Who was Isaac Newton?
Sir Isaac Newton (_____-_____) an English ___________ and ___________, is
famous for his discovery of the _________ ________ of ______________.
Today these laws are known as Newton’s __________of ___________ and
describe
_____________________________________________________________
_____________________________________________________________
_________________________________________________.
Newton’s 1st Law:
An object at rest will ________ ____ _______ and an object in motion will
________ ____ ___________ at a constant _____________, unless acted
upon by an _____________________ force.
______________ is the tendency of an object to ____________
____________ in its velocity: whether in motion or motionless.
Once airborne, unless acted on by an ______________ ___________ (gravity
and air – fluid friction), it would never stop!
Why then, do we observe every day objects in motion slowing down and becoming
motionless seemingly without an outside force?
_____________________________________________________________
_____________________________________________________
Objects on earth, unlike the frictionless space the moon travels through, are
under the influence of _________________.
What is this unbalanced force that acts on an object in motion?
____________________________________
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 There are four main types of friction:
 Sliding friction: _________________ __________________
 Rolling friction: ________________________
 Fluid friction (air or liquid): _______________ or
_________________
 Static friction: ____________________________________
Let’s Review:
1. _________
2. _________
3. _________
4. _________
5. _________
6. _________
Newtons 2nd Law:
___________ equals ________ times _______________________.
or F=ma.
Acceleration: a ______________________of how quickly an object is
______________________ _________________. (Acceleration occurs when
an object speeds up, slows down, or changes its direction of motion... ANY
__________________ in ___________________ is
____________________________)
Mass: the amount of _______________ in an ____________________.
The _____________ _________________ that is applied, the
_________________ the object will
________________________________________.
The ________________ will accelerate ____ the _____________ of the
__________________.
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 When mass is in kilograms and acceleration is in m/s/s, the unit of force is in
newtons (N).
 One newton is equal to the force required to accelerate one kilogram of
mass at one meter/second/second.
 How much force is needed to accelerate a 1400 kilogram car 2 meters per
second/per second?
 Write the formula
 F=mxa
 Fill in given numbers and units
 F = 1400 kg x 2 meters per second/second
 Solve for the unknown
 2800 kg-meters/second/second or 2800 N
Let’s Review:
1.________
2. .________
3. .________
4.____________________________________________________________
____________________________________________________
Newton’s 3rd Law:
For every ________________, there is an ______________and
____________________ reaction
What does this mean?
For every ____________ acting on an object, there is an _____________
__________________ acting in the _______________ direction. Right now,
gravity is pulling you ___________in your seat, but Newton’s Third Law says your
seat is ________________ ______ against you with ______________ force.
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Two Forces At Work:
• The forces that 2 ____________put on each other are called an
______________-_______________ force pair.
• The forces in the force pair are ______________ in
_________________, but ________________________in
_______________________________. .
• One is called the __________________________ force.
• The other is called the _____________________ force.
Let’s Review:
1._______
2._______
3._______
4._______
Common Misconception:
Explain (with your spleen) the correct interpretation of the effect of the pull of
the Earth and moon to each other:
_____________________________________________________________
_____________________________________________________________
_____________________________________________________________
_____________________________________________________________
_____________________________________________________________
_____________________________________________________________
_____________________________________________________________
_____________________________
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