Waves Quiz True or False

1. The angular frequency of a pendulum swinging in simple harmonic motion is . What length pendulum will give the swing a frequency of 1 Hz? -> 0.50 m
2. 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(2πx)
3. What is the period of oscillation of red light (wavelength 650 nm)? -> 15.4 fs
4. Which of the following is an example of a transverse wave? -> "The wave" at a crowded stadium
5. The antinodes of a sine-shaped standing wave are located at which of the following points? -> odd multiples of : , , ...
6. Which of the following terms describes the repeated pattern of a wave? -> cycle
7. A sine-shaped standing wave oscillates up and down with frequency 10 Hz. At what time t will the wave first appear totally flat? -> 25 ms
8. 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? -> 793.0 Hz
9. 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? -> + 210.8 MHz
10. A sine wave with a 1 m amplitude, 1 rad/s angular frequency, and phase of rad looks like which of the following waves? ->

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