On-Line
(43 questions)
Physics
121
Practice
Exam
1a
QUESTION 1*
This and the following question concern the same physical situation.
An object starts from rest at t= 2 s at an initial position of x = 7.2 m and moves with constant
acceleration.?At t = 6 s,
QUESTION 1*
This and the following two questions relate to the same situation:
A uniform solid disk of mass 4 kg and radius 0.25 m is at rest at the top of a 4 m long incline
that makes an angle of 30 with the horizontal as shown in the figure.
If the dis
QUESTION 1*
This and the following three questions relate to the same situation:
A uniform disk of unknown mass M and radius R = 10 cm is free to rotate about its axis. A
light cord is wrapped around the rim on the disk and then tied to a small can of mas
Lecture 03:
Lecture
1-D Statics and Dynamics
1-D
q
Newtons Laws
q
Forces
q
Free Body Diagrams
q
Springs
q
Tension
q
2-D Statics Examples
q
Dynamics
q
Apparent Weight
Newtons 1st Law of Motion
Newtons
q
If the sum of all external forces on an object is zer
Lecture 12: Fluids
Lecture
q
Pressure
q
Pascals Principle
q
Density
q
Archimedes Principle
q
Archimedes Principle (continued)
q
Continuity Equation
q
Bernoulli's Equation
States of Matter
States
q Solid
Hold Volume
Hold Shape
q Liquid
Fluids
Hold Volume
A
On-Line
(40 questions)
Physics
121
Practice
Exam
1b
QUESTION 1*
Your car is traveling at 30 m/s when you press the brake. The car stops after 250 m.
Assuming that the deceleration is constant, calculate the time to stop.
(a) 16.7 s
(b) 17.25 s
(c) 9.8 s
(
Lecture 13:
Lecture
Temperature, Thermal Expansion,
Kinetic Theory, Ideal Gas Law, Heat
Kinetic
q
Internal Energy
q
Temperature
q
0th Law of Thermodynamics
q
Thermal Expansion/Contraction
q
Ideal Gas Law
q
Kinetic Theory
q
Internal Energy
q
Heat
q
Specifi
Lecture 06:
Lecture
Work and Kinetic Energy
q
Energy Overview
Conservation of Energy
Forms of Energy
q
Work
Transfer of Energy
Relationship to Kinetic Energy
q
Potential Energy
Definition
Conservative Forces
q
Conservation of Energy
q
Power
Conserva
Lecture 07:
Lecture
Momentum and Impulse
q ConservationofMomentum
q Impulse&Momentum
q MomentumExamples
qProblemSolving
qCollisions(elastic&inelastic)
qExplosions
Conservation of Momentum
Conservation
q Momentum
is Conserved meaning it
cannot be created n
Lecture 01: 1-D Kinematics
Lecture
q
q
q
Kinematics: Description of Motion
Position & Displacement
Velocity
average
instantaneous
Acceleration
average
Instantaneous
Kinematics Equations
constant acceleration
Free Fall
Position
Position
q
A vector
Lecture 02:
Two Dimensional Kinematics
Two
q
Vector Review
q
2-D Kinematics
q
Projectile Motion
q
Relative Velocity
2-D Problem Solving
2-D
q
X and Y are INDEPENDENT!
q
Break 2-D problem into two 1-D problems.
y
x
Vectors
Vectors
q
Position, Velocity, and
Lecture 04:
2-D Statics and Dynamics
2-D
q
Problem Solving: Dynamics Examples
Dynamics Problem Solving
Dynamics
q Draw
a Free Body Diagram
(FBD) for each Object
down F = ma for each
Object in each Direction
q Write
q Solve
for the Unknown(s)
Dynamics Exam