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Physics 2 test 1
cockman
| Question | Answer |
|---|---|
| how does the frequency of oscillation depend on the mass of the weight | the frequency decreases as the mass increases |
| how does the frequency depend on the amplitude of oscillation | the frequency is independent of the amplitude |
| how does the frequency of oscillation depend on the spring constant | the frequency increases as the spring constant increases |
| with the pendulum swinging back and forth, at which locations is the acceleration equal to zero | the acceleration is never equal to zero as it swings back and forth |
| with the pendulum swinging back and forth, how does the tension of the rope compare to the force of gravity when the angle is 0? | the tension is greater than the force of gravity |
| the period is longer when | the initial angle is greater |
| the period is independent of | the pendulums mass |
| a longer pendulum has | a longer period |
| the period of oscillation is shorter on planets with | a higher value of g |
| a square is cut out of a copper sheet. the square is heated uniformly. as a result, it turns into | a square with a larger area |
| a circular hole is drilled in the square. it is heated uniformly. as a result, the diameter of the hole | increases |
| the magnitude of the buoyant force is equal to the weight of fluid displaced by the object | for every object submerged partially or completely in a fluid |
| the magnitude of the buoyant force is equal to the weight of the amount of fluid that has the same total volume as the object | for an objet completely submerged in a fluid |
| the magnitude of the buoyant force equals the weight of the object | for an object that floats |
| the magnitude of the buoyant force is less than the weight of the object | for an object that sinks |
| after the block is released from x=A, it will | move to the left until it reaches z=-A and then begin to move to the right |
| if the period is doubled, the frequency is | halved |
| when is the elastic potential energy of the spring a maximum | both when the spring is most compressed and when the spring is most stretched |
| when is the kinetic energy of the mass a max | when the spring is at its unweighted length (neither stretched or compressed) |
| when is the kinetic energy a max | when the mass is at its equilibrium position |
| the time for one cycle of a periodic process is called the | period |
| for a periodic process, the number of cycles per unit time is called the | frequency |
| for vibrational motion, the max displacement from the equilibrium point is called the | amplitude |
| a mass on a spring undergoes SHM. when the mass is at its maximum displacement from equilibrium, its instantaneous velocity | is zero |
| a mass on a spring undergoes SHM. when the mass passes through the equilibrium position, its acceleration | is maximum |
| if you take a given pendulum to the moon, where the acceleration of gravity is less than on Earth, the resonant frequency of the pendulum will | decrease |
| the number of crests of a wave passing a point per unit time is called a waves | frequency |
| the frequency of a wave increases. what happens to the distance between successive crests if the speed remains constant | decreases |
| a string of mass m and length l is under tension t. the speed of the wave in the string is v. what will be the speed of a wave in the string if the mass of the string is increased by 2 m with no change in length | .71 V |
| the intensity of a wave is | proportional to both the amplitude squared and the frequency squared |
| a bimetallic strip, consisting of metal G on the top and metal H on the bottom, is rigidly attached to a wall at the left. the coefficient of linear thermal expansion for metal G is greater than that of metal H. if the strip is uniformly heated, it will | curve downward |
| when the engine of your car heats up, the spark plug gap will | increase |
| consider a flat steel plate with a hole through its center as shown in the figure. when the plates temperature is increased, the hole will | always expand |
| the coefficient of linear expansion for aluminum is 1.8 x 10^-6(C)^-1 what is its coefficient of volume expansion | 5.4 x 10^-6 (C)^-1 |
| which temperature scale never gives negative temperatures | kelvin |
| for vibrational motion, the maximum displacement from the equilibrium point is called the | amplitude |
| a mass on a spring undergoes SHM. when the mass passes through the equilibrium position, its instantaneous velocity | is maximum |
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