Think you’ve got your head wrapped around Waves? Put your knowledge to
the test. Good luck — the Stickman is counting on you!
Q. The angular frequency of a pendulum swinging in simple harmonic motion is 
. What length pendulum will give the swing a frequency of 1 Hz?
. What length pendulum will give the swing a frequency of 1 Hz? 0.25 m
0.50 m
0.99 m
4.91 m
9.81 m
Q. A block on a spring slides over a frictionless table, oscillating with a period of 2 s. If the amplitude of the motion is 5 cm and it starts at its full extension at t = 0, which of the following equations describes the motion of the block?
5cos(2x)
5cos(2πx)
5cos(x + π)
5cos(πx)
10cos(πx)
Q. What is the period of oscillation of red light (wavelength 650 nm)?
2.17 fs
4.61 fs
13.6 fs
15.4 fs
21.7 fs
Q. Which of the following is an example of a transverse wave?
"The wave" at a crowded stadium
A plucked guitar string
Someone jumping rope
Human speech
Pushing on one end of a slinky
Q. The antinodes of a sine-shaped standing wave are located at which of the following points?
multiples of λ: 0, λ, 2λ...
multiples of 
: 0, 
, λ, 
...
: 0, , λ, ... odd multiples of 
: 
, 
, 
...
: , , ... multiples of 
: 0, 
, 
, 
...
: 0, , , ... odd multiples of 
: 
, 
, 
...
: , , ... Q. Which of the following terms describes the repeated pattern of a wave?
node
cycle
trough
amplitude
phase
Q. A sine-shaped standing wave oscillates up and down with frequency 10 Hz. At what time t will the wave first appear totally flat?
0 ms
10 ms
25 ms
50 ms
157 ms
Q. A fire alarm wailing in the hallway emits an 800 Hz noise. As you run away from the alarm at 3 m/s, what frequency noise does the alarm seem to make?
600 Hz
793.0 Hz
800.0 Hz
807.1 Hz
1200 Hz
Q. One potentially futuristic missile defense tactic is an airplane-mounted chemical oxygen iodine laser, which ignites enemy missiles by shooting them with a high-powered beam of light. The Boeing 747-mounted laser has a wavelength of 1.3 μm. If the 747 were to approach a stationary target at max speed (988 km/hr), what change in the laser's frequency would the target observe?
-760.0 MHz
-210.8 MHz
no change
+ 210.8 MHz
+760.0 MHz
Q. A sine wave with a 1 m amplitude, 1 rad/s angular frequency, and phase of 
rad looks like which of the following waves?
rad looks like which of the following waves? 
cos(x)
-sin(x)
