Springs
Pendulums
SHM
Circular Motion
Throwbacks
100

What is the equation for the period of a spring?

2pi\sqrt (m/k)

100
How much effect does changing the mass have on a pendulum?
None
100

Because of _____, a swinging wrecking ball does not swing forever.

Friction or damping forces

100

How can you describe the velocity of an object in UCM?

Constant speed with changing direction

100
What is velocity?
Change in Velocity/ Change in time
200

The equation

F_s=-kDeltax

is known as:

Hooke's Law

200

SHM on a simple pendulum independent of I. amplitude II. mass III. length of string

II

200

Frequency is measured in:

Hertz


1 Hz=1s^-1

200

What is the source of centripetal force? Give an example

Tension or friction (depending)

200
You bike at a constant speed of 10 m/s what is your acceleration?
0
300

A mass oscillating on a spring will have a zero acceleration at this point.

Equilibrium

\Deltax=0

300

What are the three variables in the period of a pendulum?

Amplitude

Length

Gravitational Acceleration

300
What is the type of graph used for SHM?
Sinusoidal
300

What is the direction of acceleration in UCM?

Radially inward

300

Position is the area under what type of graph?

V vs. T

400

The equation for the period of a spring shows that the following statement is true or false? SHM in a closed space in a non-damping system, the period of oscillation on a spring is both independent of amplitude and gravitational acceleration.

True

400

Why does SHM work so well with pendula for small angles?

sin(theta)approxtheta

400
Which law is associated with SHM?
Hooke's law
400

Nick spins 8 times while holding a shotput before throwing. If it takes him 3.4 seconds to throw, what is the period and frequency of his spinning?

f=8/3.4=2.35\ Hz

T=3.4/8=0.425\ s

400
Two masses one 3500kg traveling at 52 m/s and the other 1500 traveling at 3 m/s and they collide inelastically. What is the final velocity?
37.3 m/s
500

How does Hooke's law play a part in SHM

F_s=-k\Deltax

which means that the force of a spring is directly proportional to the distance of the spring from its equilibrium point. It shows that when a spring is moved there is a restoring force that moves it on the SHM track.

500
What is the period of a pendulum on earth with a length of 5m and a 3kg mass on the end of it?
4.44 sec
500

How do you find a full period on the SHM graph?

peak to peak or trough to trough

500

A roller coaster, composed of a robotic arm holding a pod full of thrill-seeking riders at the end, has a radius of 8 meters. If it can complete 15 revolutions in 1 minute, calculate the speed of the passengers.

BONUS: Calculate the acceleration, in "g"s, of the passengers

v=d/t=C/T=(2pi*8)/4=12.566\ m/s

a_c=v^2/r=12.566^2/8=19.7\ m/s^2

19.7/9.8= 2\ gs

500
You have a semi-atwood machine on a frictionless surface with m1=1kg and m2= 3kg what is the acceleration?
7.5 m/s^2
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