Review for exam 1
Please bring your calculator.
Please turn off your cell phone and all electronic devices during exam.
Can’t talk, look around.
All you need are
:
a simple calculator (can’t borrow other’s calculator since there will be
talking involved)
, a pencil/pen and a 3’x5’ note card with equations. Don’t need to bring your
textbook, notes and so on.
Please review textbook, notes, pre/post quizzes. Please really understand the class
examples/exercises.
Chapter 1 Patterns of Motion and Equilibrium
Understand mass, inertia, weight, volume. Know how to find weight (in N) if you know mass (in
kg).
Weight= mass x grams (newtons= kg x 9.8)
Mass is same everywhere, weight is different

Understand t
he Equilibrium Rule:
When an object has no changes in motion (either at rest or
moving at a constant speed), we say that object is at
equilibrium
and the net force on the
object is zero. In math equation:
Σ
F
= 0
Σ stands for “the sum of, the net” and
F
stands for all vector forces.
Know how to use this rule to answer questions.
Realize the supporting force, friction force exist.
Understand speed
velocity
speed and direction, higher speed, higher the velocity
acceleration
change of velocity
time
Know how to answer the questions and do simple calculations.
You've reached the end of your free preview.
Want to read all 4 pages?