Question : A body moving in a circular path with a constant speed has a:
Option 1: constant velocity
Option 2: constant acceleration
Option 3: constant kinetic energy
Option 4: constant displacement
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Correct Answer: constant kinetic energy
Solution : The correct option is constant kinetic energy.
In circular motion at a constant speed, the velocity direction continually changes, leading to centripetal acceleration toward the circle's centre. Though speed remains constant, velocity, a vector involving magnitude and direction, varies. This continuous change in velocity direction causes the body to move in a circle, maintaining constant kinetic energy while experiencing centripetal acceleration.
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Question : Kinetic energy depends on:
Option 1: the velocity or speed of the moving body
Option 2: the mass of the moving body
Option 3: the pressure of the moving body
Option 4: both mass and velocity of the moving body
Question : An object is in static equilibrium when it is ______.
Option 1: at rest
Option 2: moving in a circular path
Option 3: moving with uniform velocity
Option 4: acceleration at high speed
Question : ____ in a particular direction is velocity.
Option 1: Acceleration
Option 2: Displacement
Option 3: Speed
Option 4: Distance
Question : During the motion of a projectile fired from the Earth's surface, ___________.
Option 1: its kinetic energy remains constant
Option 2: its momentum remains constant
Option 3: vertical component of its velocity remains constant
Option 4: the horizontal component of its velocity remains constant
Question : ______ - The time graph shows the speed of an object.
Option 1: Velocity
Option 2: Distance
Option 3: Displacement
Option 4: Acceleration
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