CBSE Class 11 (Science) Oscillations — practice questions
81 free MCQs with worked solutions. Tap any question for the answer + explanation, or practice them all in the app.
Practice CBSE Class 11 (Science) Oscillations in the app →Motion that repeats to and fro about a mean position is called:Which instrument is given as having vibrating strings?The simplest form of oscillatory motion is called:In simple harmonic motion the force is proportional to the:The mean position in an oscillation is also the:The smallest interval after which motion repeats is the:The SI unit of the period of oscillation is the:The number of repetitions per unit time is called the:The unit of frequency is named the:One hertz equals how many oscillations per second?Must the frequency of an oscillation be a whole number?For an oscillating pendulum, what serves as the displacement?In simple harmonic motion, the speed is maximum where displacement is:In simple harmonic motion, the speed at the extremes is:In the standard equation, the symbol A stands for the:The time-dependent quantity in the cosine argument is the:The value of the phase at time zero is called the phase:The force in simple harmonic motion always points towards the:Because it pulls the body back, the force in SHM is called:In SHM, how does the restoring force depend on the displacement?In SHM, the restoring force always acts in which direction?What happens to the net restoring force on a spring mass at the equilibrium position?A mass on a spring moves toward equilibrium. What happens to the restoring force?Why does an oscillating mass pass through x = 0 instead of stopping there?What does a mass-spring system exhibit when energy is lost from the system?Simple harmonic motion is a special type of which motion?SHM is described in time by which kind of function?Which technique builds complicated periodic motion from simple harmonic motions?Which change leaves the period of a mass on a spring unchanged?A constant extra force acts on a mass oscillating on a spring. What happens to its period?A 0.25 kg mass hangs on a spring of constant 100 N/m. What is its period?The mass on a spring is made four times larger. What happens to the period?SHM can be viewed as a projection of which motion onto a line?A body moves uniformly on a circle of radius r. Its projection on a diameter has what amplitude?What does it mean that SHM is isochronous?In SHM, the acceleration is directly proportional to which quantity?Without friction, what is true of the total mechanical energy in SHM?A Scotch yoke mechanism converts rotary motion into which motion?For which swing angles is a simple pendulum approximately in SHM?Which approximation lets a pendulum be treated as SHM?What is the period of a 1.0 m simple pendulum where g = 9.8 m/s^2?A pendulum clock is taken to the Moon, where g is smaller. What happens to its period?What is a pendulum?Which force provides the restoring force on a displaced pendulum?Who invented the pendulum clock in 1656?What replaced the pendulum clock as the world's standard timekeeper in the 1930s?What did Foucault's pendulum of 1851 demonstrate?How long was the cord of Foucault's pendulum hung in the Paris Pantheon?Pendulums were historically used as gravimeters to measure what?A pendulum clock ran slower at Cayenne than at Paris. What did Richer deduce?A clock pendulum bob is moved up the rod. What happens to the clock?Which pendulum length is most common in grandfather clocks?Which pendulum length is used in the Big Ben tower clock?Why did early pendulum clocks run slower in summer?Which temperature compensated pendulum was invented in 1726?Invar, used for precision pendulum rods, is which kind of material?Why must a pendulum clock hang from a rigid support?Why did Huygens mount cycloidal guides next to the pivot?For wide swings, how does the period of a real pendulum change?Which captain invented the reversible pendulum in 1818?Precision pendulums were kept in low pressure tanks to keep what constant?The word pendulum comes from a Latin word meaning what?The Shortt-Synchronome clock achieved what accuracy?The Huygens pendulum clock improved daily accuracy from about 15 minutes to what?Robert Hooke studied which pendulum whose bob moves in a circle or ellipse?Which instrument uses pendulums to detect ground shaking?In physics, what is damping?Which Greek letter denotes the damping ratio?What is the damping ratio of a critically damped system?Which damping ratio range describes an underdamped system?A mass in thick fluid returns slowly without overshooting. This case is what?Which case has the mass overshoot repeatedly with shrinking oscillations?What is special about critical damping compared with overdamping?A lossless spring-mass system, once started, would oscillate for how long?The damping ratio has which property?A body in SHM has amplitude 0.05 m and angular frequency 10 rad/s. Its maximum speed is?A 2 kg mass on a spring of constant 200 N/m has what angular frequency?A spring of constant 200 N/m oscillates with amplitude 0.1 m. What is its total energy?An SHM has angular frequency pi rad/s. What is its period?For a simple pendulum, what does the length l measure in T = 2 pi root(l/g)?A force F = -kx on a spring obeys which law?