Description : A particle is acted upon by a force of constant magnitude which is always perpendicular to the velocity of the particle. The motion of the particle takes place in a plane. It follows that (a) Its ... ) Its acceleration is constant (c) Its kinetic energy is constant (d) It moves in a circular path
Last Answer : Ans:(d)
Description : A particle of mass m moves in a circular path of radius r at constant speed v. Its KE is (a) mv2/r (b) ½ Iw (c) ½ mv2 (d) ½ mrw2
Last Answer : Ans:(c)
Description : An α particle moves perpendicular to a constant magnetic field of strength 1.2 T in a circular path of radius 0.7 m. The speed of α particle in ms-1 is ______________ a) 2.7 × 107 b) 2.6 × 107 c) 3.2 × 107 d) 2.0 × 107
Last Answer : a) 2.7 × 107
Description : A proton moves in a uniform magnetic field in a circular path of radius R. If the energy of proton is doubled then the new radius becomes a) R √2 b) 2R c) R 2 d) √2 R
Last Answer : d) √2 R
Description : If an object moves a circular distance ‘s’ of radius ‘r’, then it's angular displacement is A. s⁄r B. r⁄s C. rs D. r2s
Last Answer : s⁄
Description : The resultant of a force acting on a body will be zero, if the body a.Rotates with uniform acceleration b.Moves along a curved path c.Rotates d.Does not rotate e.Rotates with uniform deceleration
Last Answer : d. Does not rotate
Description : A two dimensional rotation is applied to an object by a.Repositioning it along with straight line path b.Repositioning it along with circular path c.Only b d.Any of the mentioned
Last Answer : c.Only b
Description : A translation is applied to an object by D a.Repositioning it along with straight line path b.Repositioning it along with circular path c.Only b d.All of the mentioned
Last Answer : a.Repositioning it along with straight line path
Description : The distance moved and the magnitude of displacement are equal in ? (a) The earth is revolving around the Sun (b) Object moving in circular path (c) The pendulum is moving to and fro (d) Object moving on straight road -Science
Last Answer : (d) only. Distance and displacement in all other cases
Description : Explain the acceleration of an object moving in a circular path. ?
Last Answer : We know that the acceleration of an object moving in a circular path is called angular acceleration. That is, the rate of change of velocity of an object moving in a circular path with time is called angular acceleration.
Description : An object is in static equilibrium when it is _____. (1) at rest (2) moving in a circular path (3) moving with uniform velocity (4) accelerating at high speed
Last Answer : (1) at rest Explanation: When forces acting on an object which is at rest are balanced, the object is said to be in a state of static equilibrium. The resultant of these forces equals zero.
Description : An object is in static equilibrium when it is _______. (1) at rest (2) moving in a circular path (3) moving with uniform velocity (4) accelerating at high speed
Last Answer : (1) at rest
Description : Object moving along a circular path is A. in equilibrium B. not in equilibrium C. not moving with constant speed D. in random motion
Last Answer : not in equilibrium
Description : For an object moving in uniform circular motion, the direction of the instantaneous acceleration vector is: w) tangent to the path of motion x) equal to zero y) directed radially outward z) directed radially inward
Last Answer : ANSWER: Z -- DIRECTED RADIALLY INWARD
Description : Force which acts on a body moving in a circular path and it is directed towards centre is called?
Last Answer : Centripetal force
Description : Assertion If a charged particle enters from outside in uniform magnetic field, then it will keep on rotating in a circular path. Reson Magnetic force
Last Answer : Assertion If a charged particle enters from outside in uniform magnetic field, then it will keep on ... . If Assertion is false but Reason is true.
Description : Satellite around Earth follows a circular path because A. gravitational force is parallel to velocity B. gravitational force is anti parallel to velocity C. gravitational force is perpendicular to velocity D. gravitational force is anti perpendicular to
Last Answer : gravitational force is perpendicular to velocity
Description : How much work is done when a force is 30N moves an object a distance 3m?
Last Answer : 100N 20M 200 Jjoules
Description : Centripetal force is dependent on three factors, the odd one out of these factors is A. Mass of the rotating object B. Speed of the rotating object C. Volume of the rotating object D. Path radius
Last Answer : Volume of the rotating object
Description : What is it called as the screw moves away when only one part of the circular scale is rotated ?
Last Answer : The smallest calculation is when the screw moves when only one part of the circular scale is rotated.
Description : The line traced by a single fluid particle as it moves over a period of time is called __________ line. (A) Stream (B) Path (C) Equipotential (D) None of these
Last Answer : (B) Path
Description : What happens whenever a net force acts on a object?
Last Answer : Need answer
Description : Can a net force be applied to an object and still have the object maintain constant speed?
Last Answer : yes, as in the case of a satellite orbiting the earth; it is moving with constant speed but not constant velocity as its direction is always changing as it orbits. The net force is provided by gravity accelerating it inward and preventing into from flying away into space
Description : What will happen to an object when the net force is not zero?
Last Answer : What is the answer ?
Description : If you doubl the mass of an object while leaving the net force unchanged what is the result on the acceleration?
Description : What is the mass of an object if a net force of 8.0 N causes it to accelerate at 1.1 MS?
Description : According to newton second law of motion, the acceleration of an object equals the net force acting on the object divide by the object?
Last Answer : Mass.
Description : When a pair of balanced force acts on an object, the net force that results is?
Last Answer : Zero.
Description : When falling object reaches terminal velocity, the net force acting on it is?
Last Answer : When an object is not accelerating or decelerating, it has a net force of zero.
Description : When a body moves round a fixed axis it will have a.A motion of rotation and translation b.A circular motion c.A rotary motion d.A translatory motion e.A swinging motion
Last Answer : b. A circular motion
Description : A cyclist moves uniformaly on a horizontal circular track of radius 100 m . If the cofficient of friction is 0.1. At which of the following speed (s)
Last Answer : A cyclist moves uniformaly on a horizontal circular track of radius 100 m . If the cofficient of friction is 0.1. ... m/s C. 14 m/s D. none of these
Description : An electron moves in a circular orbit of radius 10 cm with a constant speed of `4.0xx10^(6) ms^(-1)`. Determine the electric current at a point on the
Last Answer : An electron moves in a circular orbit of radius 10 cm with a constant speed of `4.0xx10^(6 ... Determine the electric current at a point on the orbit.
Description : A particle of mass `m` moves along a circular orbit in centrosymmetrical potential field `U(r )=kr^(2)//2`. Using the Bohr quantization condition, fin
Last Answer : A particle of mass `m` moves along a circular orbit in centrosymmetrical potential field `U(r ... orbital radii and energy levels to that particle.
Description : An electron moves in a circular orbit with a uniform speed `v`.It produces a magnetic field `B` at the centre of the circle. The radius of the circle
Last Answer : An electron moves in a circular orbit with a uniform speed `v`.It produces a magnetic field `B` at the centre of the ... (v)/(B))` D. `sqrt((B)/(v))`
Description : A particle of charge `q` and mass `m` moves in a circular orbit of radius `r` with angular speed `omega`. The ratio of the magnitude of its magnetic m
Last Answer : A particle of charge `q` and mass `m` moves in a circular orbit of radius `r` with angular speed `omega`. The ... C. `q` and `m` D. `omega` and `m`
Description : Two bodies of equal mass are moving in circular paths at equal speed. The first body moves in a circle whose radius is twice as great as that of the second. The ratio of the centripetal or radial acceleration of the first body to that of the second is: w) 1 to 4 x) 1 to 3 y) 1 to 2 z) 1 to 1
Last Answer : ANSWER: Y -- 1 TO 2
Description : A point moves in such a manner that its distance from a fixed point is equal to its distance from a fixed line multiplied by a constant greater than one. The locus of the path traced by the point will be a a.Cycloid b.Hyperbola c.Circle d.Involute e.Ellipsc
Last Answer : d. Involute
Description : A point charge q moves from A to B along a parabolic(x2 =2ay) path (AB is latus rectum). Electric field is along x-axis. The work done by the field is
Last Answer : A point charge q moves from A to B along a parabolic(x2 =2ay) path (AB is latus rectum). Electric field is ... qEa` B. `+qEa` C. `-2qEa` D. `2qEa`
Description : A person moves from a point S and walks along the path which is a square of each side 50 m. He runs east, south
Last Answer : A person moves from a point S and walks along the path which is a square of each side 50 m. He runs east, south, ... (B) 100 m (C) 50 m (D) zero
Description : What refers to the series of states through which a system passes during the process? a. path b. quasi- static steps c. reversibility moves d. irreversibility moves
Last Answer : path
Description : _________ is the average distance a molecule moves before colliding with another molecule. a. mean free path b. path allowance c. compacting factor d. molecular space
Last Answer : mean free path
Description : Critical path moves along the activities having total float as (a) Positive (b) Negative ( c) Zero (d) Unity
Last Answer : ( c) Zero
Description : Which command of path element moves cursor from one point to another point?
Last Answer : M command of path element move from one point to another point.
Description : As a longitudinal wave moves through a medium, the particles of the medium: w) vibrate in a path parallel to the path of the wave x) vibrate in a path perpendicular to the path of the wave y) follow the wave along its entire path z) do not move
Last Answer : ANSWER: W -- VIBRATE IN A PATH PARALLEL TO THE PATH OF THE WAVE
Description : The action potential of a neuron a. is initiated by efflux of Na+ b. is terminated by efflux of K+ c. declines in amplitude as it moves along the axon d. results in a transient reversal of the ... the cell membrane e. is not associated with any net movement of Na+ or K+ across the cell membrane
Last Answer : is terminated by efflux of K+
Description : Electrons move in a circular path called?
Last Answer : Orbit
Description : The tool of an NC machine has to move along a circular arc from (5, 5) to (10, 10) while performing an operation. The centre of the arc is at (10, 5). Which one of the following NC tool path command performs the ... b.N010 GO3 X10 Y10 X5 Y5 R5 c.N010 GO1 X5 Y5 X10 Y10 R5 d.N010 GO2 X5 Y5 X10 Y10 R5
Last Answer : a.N010 GO2 X10 Y10 X5 Y5 R5
Description : n an NC machining operation, the tool has to be moved from point (5, 4) to point (7, 2) alonga circular path with centre at (5, 2). Before starting the operation, the tool is at (5, 4). The G and N codes for this motion ... 0 I5.0 J2.0 c.N010 GO1 X7.0 Y2.0 I5.0 J2.0 d.N010 GOO X7.0 Y2.0 I5.0 J2.0
Last Answer : b.N010 GO2 X7.0 Y2.0 I5.0 J2.0
Description : Work done by a body of mass 100 kg moving along a circular path of radius 2 m with a uniform velocity of 10 m/sec is a.5000 J b.2500 J c.509.68 J d.None of the above e.Tapered bearing
Last Answer : d. None of the above