AP Physics 1 Final Exam (Latest 2023/ 2024)| Questions and Verified Answers |100% Correct

AP Physics 1 Final Exam (Latest 2023/ 2024)| Questions and Verified Answers |100% Correct Q: The wavelengths of the sounds produced by two horns are 6.0 m and 7.0 m, respectively. What beat frequency is heard when the horns are sounded on a day when the speed of sound is 340 m/s? Answer: 8 Hz Q: The intensity at a distance of 6.0 m from a source that is radiating equally in all directions is 6.0x10^-10 W/m^2. What is the power emitted by the source? Answer: 2.7x10^-7 W Q: A 0.588-m string is tightly clamped at both ends. If the lowest standing wave frequency of the string is 326 Hz, how fast do waves travel on this string? Answer: 383 m/s Q: A string that is 2.0 meters long is fixed at both ends and tightened until the wave speed it 18 m/s. What is the frequency of the standing wave shown in the figure? Answer: 27 Hz Q: If a wave has a speed of 362 m/s and a period of 4.17 ms, what is its wavelength? Answer: 1.51 m Q: Identical ideal batteries are connected in different arrangements to the same light bulb, as shown in the figure. For which arrangement will the bulb shine the brightest? Answer: C Q: A particularly scary roller coaster contains a loop-the-loop in which the car and rider are completely upside down. If the radius of the loop is with what minimum speed must the car traverse the loop so that the rider does not fall out while upside down at the top? Assume the rider is not strapped to the car. Answer: 11.4 m/s Q: One way that future space stations may create artificial gravity is by rotating the station. Consider a cylindrical space station 380 m in diameter that is rotating about its longitudinal axis. Astronauts walk on the inside surface of the space station. How long will it take for each rotation of the cylinder if it is to provide "normal" gravity for the astronauts? Answer: 28 s Q: A 2.0 kg ball is moving with a constant speed of 5.0 m/s in a horizontal circle whose diameter is 1.0 m. What is the magnitude of the net force on the ball? Answer: 100 N