Advanced Placement Physics
Study Guide and Review
Jansen
Aliso Niguel High School
Fall 2000 - Spring 2001
Comments, corrections, or clarifications: [email protected]
Table of Contents
1.
Physics Overview
1 - 8
2.
Kinematics in One Dimension
9 - 1
Gravity and
Oscillations
Oscillations
OSCILLATIONS
x
Oscillations are caused by a vibrating object.
m
Known as: Simple Harmonic Motion, SHM .
To oscillate an object must be displaced a
distance x , and the following equations apply:
F kx
m
1 2
U kx
2
m
Eq
Traveling Waves
Waves and Sound
Traveling Wave
A disturbance that travels at a specific speed.
Mechanical Wave
These are traveling waves that involve the vibrations of a
physical substance in a medium.
Electromagnetic waves
Oscillating electric and magnet
Physics 40S Problems Work, Kinetic Energy and Momentum
1. A constant 20.0 N force acts for 10.0 s on a 5.00 kg object, which is initially at rest.
a) What is the objects final momentum?
b) What is the objects final kinetic energy?
c) How much work was don
1. the speed of galaxies can be measured by using
a. hubbles constant
b. speed of light
c.doppler shift
d. parallax
2. the reddish skies during a "sunset" can be explained by the wave effect:
a. red shift
b. blue shift
c. refraction
d. diffraction
e. disp
Page 1
D. We calculate work to find mechanical energy:
= = ( + ) (. ) + . ) ( )(. ) = . =
C. He performs the same amount of work. However, with a small rear sprocket the force is higher but the
distance he pedals is less, while the reverse is true if us
1) B: 11.4 h
t = d/v = (630 mi)/(55.3 mi/hr) = 11.4 hr
2) A: increase
g increases as you get closer to the surface of the Earth, as is approximately 9.8 m/s2 at the Earths surface.
3) C: instantaneous speed
The speedometer does not show direction, so it d
3)
a)
At r > r2, the entire charge Q is enclosed. Thus the potential is:
=
=
b)
By Gausss law, we get that:
=
=
=
( ( )
( )
= () =
( )
( + )
=
Where is the charge density
c)
At r < r1, qenc = 0, so s V(r) is constant and equal to V(r1)
( + )
=
a)
We apply Keplers third law:
=
(. + . ) (. )(. )
=
= .
b)
We apply the formula for gravitation:
=
(. )(. )
=
= . /
(. + . )
c)
Weight is equal to mass times acceleration due to gravity:
= = ( ) (.
) =
Page 1
a) We sum the forces in the horizon
1. Suppose we built a base on one of jupiter's small moons (a distance of 5AU from the Sun). How
fast would you have to launch a rocker from there to reach a moon of Saturn (10 AU away)?
(assume the speed to escape the small moon can be ignored, and we're
a)
We use an equation that relations angular velocity to angular acceleration:
= +
= (
) + (. )
= . /
b)
We use an equation that relations angular displacement to angular acceleration and velocity:
= + ( ) = (
) (. ) + ( ) (. ) (. ) = =
a)
W
Here we want to find the area under the curve from t = 0 to t = 4 sec, since the integration of
angular velocity with respect to time gives angular displacement:
= (
) ( ) + (
) ( ) = = .
a)
We use an equation that relations angular velocity to angular
In which direction is the positively charged particle deflected?
1.
2.
3. into the screen
3 i
h
4. out of the screen
5.
6.
+
v
B
45
Apply the RHR:
) p
g
your right hand in the direction of the velocity,
g
y,
1) point the fingers of y
2) curl them in the d
091313
2D Motion (II)
1) More Projectiles
2) Uniform Circular Motion
3) Relative Motion
A Note on Notation
Y(t) = yi + vyit + (1/2)gt^2
G= -9.8
Y(t) = yi + vyit - (1/2)gt^2
G=9.8
Projectiles
X direction
Constant velocity
Xf= xi + vxit
Xf = 0 + vo cos thet
090913
Physics 151
Vectors
1) Coordinate Systems
X,y graph
-(x1,y1)
-any coordinate system is composed of orthogonal (perpendicular) directions
-Cartesian coordinates
-Polar Coordinates
- We use r and theta
-r = distance from the origin
-theta is the dist
091613
Laws of motion (I)
1) What is a Force? (or, why things move)
2) More on Reference Frames and Newtons 1st Law
3) Mass
4) Newtons 2nd Law
Why do Things Move?
Up until now we have been discussing Kinematics, or, how to describe the motion of objects
D