Post on 11-Jan-2016
Word Definition Formula Shorthand Formula
Units Picture/Symbol
Force Push or PullNewton’s 2nd
Law of Motion
Force = Mass X Acceleration
F = m x a Newtons(N)
Momentum
Amount of motion an object has
Momentum = Mass X Velocity
M = m x v g · m/s
Speed Distance traveled
over time
Speed = Distance/Time
s = d/t m/s
Velocity Speed in a given
direction
Velocity = Distance/Time +
Direction (N, S, E, W)
v = d/t + direction
m/s + N, S, E, or W
Acceleration
When an object
speeds up (+), slows
down (-), or changes direction.
Acceleration = Velocity Final –
Velocity Initial / Time
A = Vf-Vi/T m/s/s or
m/s2
Force
• Push or Pull
• Newton’s 2nd Law of Motion
• Force = Mass X Acceleration
• F = m x a
• Newtons (N)
Momentum
• Amount of motion an object has
• Momentum = Mass X Velocity
• M = m x v
• g · m/s
Speed
• Distance traveled over time
• Speed = Distance/Time
• s = d/t
• m/s
Velocity
• Speed in a given direction
• Velocity = Distance/Time + Direction (North, South, East, or West)
• v = d/t + direction
• m/s + N, S, E, or W
Acceleration
• When an object speeds up (+), slows down (-), or changes direction.
• Acceleration = (Velocity Final – Velocity Initial) / Timeor (Final Speed – Initial Speed) / Time
or ▲V/T or ▲S/T
• A = (Vf-Vi)/T
• m/s/s or m/s2
Forces
Newton’s Laws of Motion
Newton’s 1st Law of Motion
AKA: Law of INERTIA &The SEAT BELT Law
An object at REST will remain at REST & an object in MOTION will remain in MOTION…
UNLESS acted upon by an outside FORCE!
Ex) Wearing your seat belt prevents you from going through the windshield at 60mph because it is the outside force that
stops you!
Picture/Symbol:
Newton’s 2nd Law of Motion
AKA: The Law of ACCELERATION
The acceleration of an object depends on the MASS of the object and the FORCE applied.
F = M x A
INCREASE FORCE = INCREASE ACCELERATION
__ F = __ A
Directly Proportional!Going in the SAME direction!
DECREASE FORCE = DECREASE
ACCELERATION
__ F = __ A
INCREASE MASS = DECREASE ACCELERATION
__ M = __ A
Inversely Proportional!Opposites of Each Other!
DECREASE MASS = INCREASE
ACCELERATION __ M = __ A
Ex) Rolling chair for Force & Acceleration
Ex) Elephant and the mouse for Mass & Acceleration
Picture/Symbol:
Newton’s 3rd Law of Motion
AKA: The Action/Reaction Law
For every ACTION there is an = but opposite REACTION
Action = Reaction
= and opposite forces
Forces occur in pairs
Ex) Book pushes down on desk and desk pushes up on book with an equal but opposite force!
Picture/Symbol:
Let’s Practice
Which Law is Which?1. For every ACTION there is an = but opposite
REACTIONNewton’s 3rd Law2. Law of INERTIANewton’s 1st Law
3. Wearing your seat belt prevents you from going through the windshield at 60mph b/c it is the
outside force that stops you!Newton’s 1st Law
4. F = M x ANewton’s 2nd Law
5. Action = ReactionNewton’s 3rd Law
6. INCREASE FORCE = INCREASE ACCELERATION
Newton’s 2nd Law7. An object at REST will remain at REST & an object
in MOTION will remain in MOTION…UNLESS acted upon by an outside FORCE!
Newton’s 1st Law
8. Ex) Book pushes down on desk and desk pushes up on book with an equal but opposite force!
Newton’s 3rd Law9. The DOMINO Law
Newton’s 3rd Law10. Ex) Rolling chair for Force & Acceleration
Newton’s 2nd Law 11.
Newton’s 1st Law
12. The Law of ACCELERATIONNewton’s 2nd Law
13. The acceleration of an object depends on the MASS of the object and the FORCE applied.
Newton’s 2nd Law14. = and opposite forces
Newton’s 3rd Law15. DECREASE MASS = INCREASE ACCELERATION
Newton’s 2nd Law16. The SEAT BELT LAW
Newton’s 1st Law
17)
Newton’s 2nd Law18) Forces Act in Pairs
Newton’s 3rd Law 19)
vs.Newton’s 2nd Law
20)
Newton’s 3rd Law
• Who is the founder of the Laws of Motion?• Sir Isaac Newton!