Free Body Diagrams
Newton's Laws
Do Now Review
3rd Law of Motion
UC Irvine Physics and Astronomy Videos
School blocks YouTube? Download file below.
Review
Click on the button below to start the game.
One of these things is not like the other!
The idea for this game and the graphic above come from a great physics teacher named Kelly O'Shea.
Review
Explain this using Newton's Laws of Motion
Explain this using Newton's Laws of Motion
Video Instruction
showmethephysics.com
B) Free Body Diagrams
Diagrams that show the forces acting on an object
Ex 1) Lamp on a Table
(1) upward force supporting on an object
(2) Always drawn perpendicular to surface where 2 objects meet
(3) When an object is placed on a horizontal surface
Object Resting on an Incline Plane
Weight force? Normal Force? Friction?
Weight force? B Normal Force? C Friction? D
Ex 2) Object at Rest on an Incline Plane
Drag and Drop the vector arrows to show the forces acting on a box resting on a ramp.
Click on the picture above
Calculating the Components of Weight Relative to a Ramp
| Onsite |
by Dr. Michael R. Gallis - Penn State Schuylkill
SchuylkillGo Nittany Lions!!
[Flash]
Show Me The Physics
Rank the parallel component on the boxes below, from largest to smallest. Justify your answer.
Video Instruction
showmethephysics.com
Ex 3) Force on a Falling Object
(before terminal velocity)
Downward Force - Weight Force
Upward Force - Friction
Ex 4) Block Pulled to the Right at Constant Velocity
What force is on this block that is also on you?
Now draw the applied force
Draw the last force
Last force is the friction force
How could this box be moving if all the forces are balanced?
Ex 5) Forces on a Projectile Moving Left to Right
What force is on this ball that is also on you?
If there is no forward force on this ball, how could it move forward?
- Aristotle
Della Porta Collection then Borghese Collection; purchased in 1807
Galileo (and Newton) would say ...
I Will Derive!!
Review
Which plots below represent an object in a state of equilibrium?
A, C, D
