Download Biology PPO #5: Genetics

Ch10.3 & 11: Forces and Newton’s Laws
PS-D21. Demonstrate that motion is a measurable quantity that depends on the observer's
frame of reference and describe the object's motion in terms of position, velocity, acceleration and
time.
PS-D22. Demonstrate that any object does not accelerate (remains at rest or maintains a
constant speed and direction of motion) unless an unbalanced (net) force acts on it.
PS-D23. Explain the change in motion (acceleration) of an object. (Fnet=ma. Note that weight
is the gravitational force on a mass.)
PS-D24. Demonstrate that whenever one object exerts a force on another; an equal amount
of force is exerted back on the first object.
PS-D25. Demonstrate the ways in which frictional forces constrain the motion of objects
(e.g.,a car traveling around a curve, a block on an inclined plane, a person running, an airplane
in flight).
We will be studying many things in the force unit (which actually covers
chapter 10.3 and chapter 11 in the book):
 Balanced and unbalanced forces
 Friction and air resistance
 Newton’s Three Laws of Motion
 Newton’s Law of Gravity
 Applications for these laws in linear motion, circular motion, projectile
motion, and free fall
 Momentum and conservation of momentum during collisions
 Free Body Diagrams
 Vectors
There are two parts to assessing this unit. One will be some kind of objective
paper and pencil test over the material. There will be multiple choice, matching,
diagrams, drawings etc. including some physics problems for you to interpret, solve
and explain.
The second part is part of the slow car project, where you build a car (I’ll give
you a kit) take some baseline data and then modify the car outside of class to run as
slowly as possible without stopping. You will be graded on the modifications, the
“slowness” and the analysis of motion, which will include topics from Ch 10 (speed,
velocity and acceleration), Ch 11 (forces) and Ch 12 (energy).
Vocab checklist
+ if you’re an expert (can explain to someone else)
 if you’ve heard of it (and know a little)
0 if you’ve never heard of it
_____
_____
_____
_____
_____
_____
_____
_____
_____
_____
_____
_____
_____
_____
force
balanced force
friction
kinetic friction
sliding friction
inertia
weight
terminal velocity
action force
force pair
Newton’s 1st Law
Law of Universal Gravity
momentum
Law of conservation
of momentum
_____ resultant
_____
_____
_____
_____
_____
_____
_____
_____
_____
_____
_____
_____
_____
_____
_____
_____
_____
_____
_____
_____
_____
_____
_____
_____
_____
_____
_____
_____
_____
_____
_____
net force
unbalanced force
static friction
rolling friction
gravity
Newtons
free fall
projectile motion
reaction force
g
Newton’s 2nd Law
Newton’s 3rd Law
elastic collision
inelastic collision
vector
normal
_____
_____
_____
_____
_____
_____
_____
_____
_____
_____
_____
_____
_____
_____
_____
_____
Learning Targets (Skills)
_____
_____
_____
_____
_____
_____
_____
_____
_____
_____
_____
_____
_____
_____
_____
_____
_____
_____
_____
_____
_____
Discuss whether friction is good or bad in a given situation (10.3)
Describe ways to increase or decrease friction (10.3)
Recognize that a net force is the sum of all forces acting on an object (10.3)
Recognize that unbalanced forces cause accelerations (changes in motion) (10.3)
Recognize that an object experiencing balanced forces may be at rest or moving with a
constant velocity (10.3)
State all three of Newton’s Laws of Motion (11.1, 11.3)
Apply Newton’s Laws to explain a variety of real life examples of force and motion (be
able to do this with and without friction as a factor) (11.1, 11.3)
Describe the relationship between inertia and mass (11.1)
Use Newton’s Second Law in problem solving situations (11.1)
Recognize that all forces exist as pairs (11.3)
Recognize that action-reaction pairs act on different objects at the same time (11.3)
Identify that action-reaction pairs act in opposite directions with equal strength (11.3)
Differentiate between mass and weight (11.2)
Given mass, calculate weight (11.2)
Explain the concept of free fall, with examples (11.2)
Describe/analyze projectile motion as the result of two independent motions – vertical
and horizontal (11.2)
Use the momentum equation in problem solving situations (11.3)
Explain how momentum is conserved in a given situation (11.3)
Represent vector quantities in graphic form, using arrows (in class)
Add vector quantities together (in class)
Draw/interpret force diagrams (free body diagrams) for given examples of motion (in
class)