i totally love and understand physics!!!!!!!!!!!

a mass is attached to a spring is displaced 5cm and released, it's period is 1s. What is it's period if it's instead displaced 10cm?

1 sec, the period does not depend on the displacement

for any exponential decay, the quantity decays to _____ of its initial value after one decay constant has passed

1/e

a block of mass m oscillates on a horizontal spring with period T=2.0sec. if an identical block is glued to the top of the first block, the new period will be:

2.8 sec use 2pi/sqrt(m/k) i think

On planet X, a ball on a rod oscillates as a simple pendulum w a period of 2.0 sec. If the pendulum is taken to the moon, where gravity is half as big, the period will be

2.8 sec. don't ask for the equation ill deal w putting that in later uwu

You and a friend are on a swing set and her swing is slightly longer than yours. If you both start swinging at the same time, from the same height, where will she be after you have completed one complete swing back and forth?

She will be slightly lower than you but moving upward towards you

You have two types of spring. Thin cooking twine and heavy rope. In which string will a wave move faster?

Thin cooking twine baybeeee

You are holding one end of a horizontal stretched strong. Flicking your wrist will send a pulse down the string. Which actions will make the pulse travel faster?

Use a lighter string of the same length under the same tension. Stretch the string tighter.

when a car drives over a speed bump and oscillates up and down in simple harmonic motion, at which position during the motion is the acceleration of the car the greatest?

at the maximum amplitude, x=A

for simple harmonic motion along a horizontal axis, when x is most positive, then

ax is most negative

What is the wavelength of an electromagnetic wave produced by your cell phone, if the frequency of that wave is 2500 MHz?

c=lamb*freq 0.12m

simple harmonic motion is closely related to

circular motion

what term is used to describe an oscillator that "runs down" and eventually stops

damped oscillator

the amplitude of a damped oscillator decreases

exponentially with time

a mass on a spring oscillates horizontally at frequency fH. Then the spring is suspended from a hook and oscillates fV. Therefore:

fV=fH

a car of mass m drives over a speed bump and oscillates in simple harmonic motion w frequency f. what would happen to the car's oscillation frequency if it's suspension springs were replaced w stiffer strings such that the spring constant was doubled?

frequency would be sqrt(2) times larger

for oscillation, velocity is at a maximum when the glider is

in the center (equilibrium point)

If astronauts built a pendulum on the Moon that was exactly the same as one of Earth, what would be different about the pendulum's motion on the Moon?

it would run slower bcuz gravity is weaker on the moon

parallel wave

longitudinal wave

You would like a pendulum that swings back and forth once every 2 seconds, but the one you have swings every 2 seconds. How would you fix this

make that bitch (the pendulum) longer

the period of a pendulum is independent to what values

mass and amplitude of oscillation

Two pendulums have identical periods. One has a slightly larger amplitude than the other, but both swing through small angles compared to vertical. The pendulum that has the larger amplitude:

moves faster at the lowest point on it's swing than the other one.

formula relating rope tension and mass density to speed of wave

speed= sqrt(tension/mass dnsity) v= sqrt[T/(m/L)]

for oscillatory motion, the symbol w represents

the angular frequency

When a light wave passes from air through matter, such as a piece of glass:

the speed decreases, the wavelength decreases. the frequency is never ever gonna change tho

perpendicular wave

transverse wave

rank the periods of oscillation for the mass-spring system from the largest to smallest 1.)m=4kh, k=2N/m 2.)m=2kg,k=2N/m 3.)m=2kg,k=4N/m 4.)m=1kg,k=4N/m

use 2pi/sqrt(m/k) 1>2>3>4

Which equation is referred to as the fundamental relationship for sinusoidal waves?

v=lamb*freq

You move a rope with frequency of 4Hz, which has a wavelength of 0.5m. What's the speed of the wave?

v=lambda*freq 2m/s