Physics Ch 10-15 Questions
Cards (35)
- Figure shows three identical balls suspended from a ceiling on pairs of ropes. Each pair has equal in length ropes.Rank figures according to vertical component of forces of tension (sum of two vertical components for each pair of ropes) , greatest first.
- Figure shows three identical balls suspended from a ceiling on pairs of ropes. Each pair has equal in length ropes.Rank figures according magnitude of force of tension exerted, say, on the left rope in each pair.
- Figure shows a uniform beam of mass M supported by a hinge on a wall and a rope secured at the opposite end of a beam. A weight of mass M is suspended on another rope as shown. Figure (b) corresponds to a weight suspended from a center of a beam. Figure (c) corresponds to a weight suspended right at the end of the beam.Rank figures according vertical force exerted on a beam by a hinge, greatest first.
- Figure shows a uniform beam of mass M supported by a hinge on a wall and a rope secured at the opposite end of a beam. A weight of mass M is suspended on another rope as shown. Figure (b) corresponds to a weight suspended from a center of a beam. Figure (c) corresponds to a weight suspended right at the end of the beam.Rank figures according horizontal force exerted on a beam by a rope, greatest first.
- Figure shows a ladder of mass M leaned against frictionless wall. Ladder is prevented from sliding by force of friction exerted by ground. Angle θ created by a ladder with a wall is shown. A person of mass M is shown schematically with a rectangle in the figure is climbing the ladder. While person is climbing up, the vertical component of force exerted on a ladder from a ground
- Figure shows a ladder of mass M leaned against frictionless wall. Ladder is prevented from sliding by force of friction exerted by ground. Angle θ created by a ladder with a wall is shown. A person of mass M is shown schematically with a rectangle in the figure is climbing the ladder. While person is climbing up, the angle between total force exerted on a ladder from a ground measured from vertical direction:
- Figure shows a mobile suspended from a ceiling. Horizontal bars are massless and extend four times as far to the right than to the left. Four toys are suspended on threads as shown. If toy #4 has mass of 10g, what should be mass of toy #2?
- Figures 1 and 2 show a reservoir with some fluid and a glass pipe with one end sealed. Figure 1 shows a pipe with the end sealed just by melting of glass, figure 2 shows a pipe with upper end blocked with vacuum pump, device for evacuating air. Air from pipe #1 was initially evacuated, so fluid inside of pipe raised to some height h. Air in class pipe #2 was still present in pipe at the moment of beginning of our experiment. We are turning on the vacuum pump in figure #2. We can predict that:
- Two balls one made of aluminum and another made of steel are sitting at the bottom of some lake adjacent to each other. The radiuses of balls are the same. What ball experiences greater buoyancy force?
- Ball made of wood and ball made of aluminum, of the same radius are placed into reservoir with water. Aluminum ball after sinking rests at the bottom, wooden ball floats. Which ball experiences greater buoyancy force?
- Wooden ball floats in water so, that ½ of its volume is above the waterline. What is the magnitude of buoyancy force acting on this ball?
- Consider a mass m vibrating on the ideal spring of spring constant k on a horizontal frictionless surface. When mass reaches the greatest displacement from point of equilibrium, its acceleration:
- Mass attached to an ideal spring vibrates on horizontal frictionless surface with frequency f. We can conclude that frequency of vibration of potential energy in this system is:
- Mass on spring is vibrating while on the surface of Earth with frequency f. You bring this system to the Moon. On the surface of Moon frequency of oscillations of this system:
- Figure shows dependence of velocity of a bob on the angle θ measured from vertical for three simple pendulums.What pendulum has the greatest frequency of oscillations?
- Elastic string is under the given tension T. A wave of wavelength λ and of frequency f is moving along the string. Another wave of wavelength λ/2 is sent along the same string. Frequency of the second wave in terms of f is:
- Elastic string of length L and mass M is under the tension T. A wave of a wavelength λ and of frequency f is moving along the string. After this tension of a string was decreased twice and again wave of a wavelength λ was sent along the string. What frequency has the new wave in terms of f?
- Two waves one after another are created on the same string.7.1 Wave A has amplitude twice as big as wave B and transmits power P . In terms of P, what is energy transmitted by wave B?
- Sound wave of 220 hz travels _____________ sound of wave of 440 hz
- When sound travels from the left side of classroom to the right side of classroom, the particles of air are vibrating in this wave:
- Consider a cylindrical pipe with one end closed, another open. If you will open the second pipe the fundamental frequency of a pipe will:
- Consider a cylindrical pipe with both ends open and fundamental resonance frequency 150 Hz. Which of the following frequencies will not resonate in this pipe?
- Consider a cylindrical pipe with both ends open.If this particular pipe has a length of L, what the wavelengths of three lowest modes produced by this pipe?
- Consider a cylindrical pipe with one end open another closed. This pipe has fundamental frequency 100 Hz. Which of the following frequencies will not resonate in this pipe?
- Consider a cylindrical pipe with one end open another closed. If this particular pipe has length L, what are wavelengths of three lowest modes?
- Distance between two adjacent nodes on a string is equal to
- Some particular organ pipe resonates at frequencies 440 Hz, 660 Hz, 880 Hz and nothing in between. It may still resonate at higher and lower frequencies. This pipe is:
- Two strings being plucked together create the beat frequency 2 Hz. What would happen to frequency of beats if we'll decrease tension of a string producing the lower pitch?
- A train blowing a siren is approaching you with constant speed. Apparent pitch of siren which you hear is:
- You are performing a set of experiments measuring the Doppler shift. In both sets of experiments you have used a car with a siren moving towards you with the same speed 60 mph. But first set of experiments was performed during the cool day when temperature was 0C and second set happened during a day when temperature was 40C. What set will show greater Doppler shift?
- Consider two samples of gas. Sample A has pressure P, temperature T and volume V. Sample B has pressure P, temperature T/2 and volume V. Gas A has the mass of molecule M, gas B has mass of molecule 4M. What is the number of molecules in sample B in terms of number of molecules of sample A, N?
- Consider two samples of gas. Sample A has pressure P, temperature T and volume V. Sample B has pressure P, temperature T/2 and volume V. Gas A has the mass of molecule M, gas B has mass of molecule 4M. What mass the total of sample of gas B in terms of total mass of gas A, m?
- Oxygen and hydrogen are kept under the same temperature and pressure. Oxygen molecule is 16 times more massive than hydrogen one. We can predict that kinetic energy of oxygen molecule is:
- During some thermodynamic process the volume of 1 mole of gas increased twice while pressure dropped twice. The average kinetic energy of a molecule of gas:
- During some process performed on 1 mole of some gas, volume of a gas increased twice and pressure of gas also increased twice. The average speed of a molecule of a gas: