If a pendulum's length is halved, what happens to its frequency?
It increases by a factor of square root of 2.
A student measures that a pendulum completes 20 cycles in 16.5 s. What is its period?
0.825 s
What is the formula that relates wave speed, frequency, and wavelength?
v=f*lambda
Define the relationship between period and frequency.
f=1/T
In 2023, this movie directed by Greta Gerwig became one of the highest-grossing films of all time.
What is Barbie?
A particle moves in SHM with an amplitude of 2.00 cm and frequency of 1.50 Hz. Write an equation for its motion. At t=0, the particle is at its amplitude.
x(t)=(0.200m)cos(3pit)
A sound wave has a frequency of 262 Hz. If the speed of sound is 340 m/s, what is its wavelength?
1.30 m
The speed of sound in Arctic waters is 1400 m/s. If an orca emits a sound with a wavelength of 0.7m, what is its frequency?
f=2000 Hz
A simple pendulum has a length of 0.45m. What is its period and frequency?
f=0.746 Hz, T= 1.34s
This actor has played both a Marvel superhero and a Starfleet captain, starring Guardians of the Galaxy and Star Trek (2009).
A 1.00-kg object is attached to a spring. It is stretched to 0.1 m and when it is let go it oscillates. If the period of oscillation is 0.500 seconds, what is its maximum speed?
1.2 m/s
A blue whale emits a sound with a wavelength of 88 m and a frequency of 17 Hz. What is the speed of sound in seawater?
1496 m/s
A spider with a mass of 0.47 g vibrates on a web with a frequency of 3.70 Hz. What is the spring constant of the web?
0.25 N/m.
A wave with a period of 0.002s travels at 300,000,000 m/s. What is its frequency?
500,000 Hz
The first U.S. president to appear on television was this commander-in-chief in 1939.
Who is Franklin D. Roosevelt?
A mass of 7.00 kg oscillates vertically on a spring with a period of 2.60 s. What is the spring constant?
40.8 N/m
A fisherman notices wave troughs pass his boat every 2.5 s. If the distance between troughs is 6.0 m, how fast are the waves traveling?
2.4 m/s
A mass oscillates with a frequency of 2.50 Hz on a spring with a constant of 55 N/m. What is the mass?
0.56 kg
A radio wave has a wavelength of 9.45m. What is its frequency?
3.17*10^7 Hz
This long-running animated TV show holds the record for the most episodes of any primetime scripted series.
What is The Simpsons?
A banana bunch oscillates on a vertical spring with a force constant of 20.0 N/m and an amplitude of 25.0 cm. If its max speed is 50.0 cm/s, what is its weight?
49.1 N
A cellular phone emits microwave radiation at 825 MHz. Determine its wavelength.
0.364m
Ocean waves arrive every 9 seconds with an average wavelength of 12.5 m. What is their speed and frequency?
0.111 Hz, 1.39 m/s
A mass-spring system has a period of 2.25s. What is the length of the pendulum?
1.26-m
The original name of this tech company was "BackRub" before rebranding in 1998.
What is Google?