Non-Inertial Reference Frames
Physics ⇒ Mechanics
Non-Inertial Reference Frames starts at 11 and continues till grade 12.
QuestionsToday has an evolving set of questions to continuously challenge students so that their knowledge grows in Non-Inertial Reference Frames.
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See sample questions for grade 11
A ball is dropped from rest in a train accelerating forward. Describe the path of the ball as seen by an observer inside the train.
A car turns left sharply. Passengers feel pushed to the right. What is the direction of the fictitious force acting on them?
A mass m is attached to a string and whirled in a horizontal circle at constant speed v and radius r. What is the expression for the centrifugal force in the rotating frame?
A mass m is in an elevator accelerating downward with acceleration a. What is the apparent weight of the mass?
A ball is dropped from rest in a train accelerating forward. Describe the path of the ball as seen by an observer inside the train.
A ball is placed on the floor of a bus that suddenly accelerates forward. In which direction does the ball appear to move relative to the bus? (1) Forward, (2) Backward, (3) Upward, (4) Downward
A car turns left sharply. Passengers feel pushed to the right. What is the direction of the fictitious force acting on them?
A mass m is attached to a string and whirled in a horizontal circle at constant speed v and radius r. What is the expression for the centrifugal force in the rotating frame?
A ball is placed on the floor of a bus that suddenly accelerates forward. In which direction does the ball appear to move relative to the bus? (1) Forward, (2) Backward, (3) Upward, (4) Downward
A person is sitting in a car that suddenly brakes. What is the direction of the pseudo force acting on the person? (1) Forward, (2) Backward, (3) Upward, (4) Downward
Which of the following forces is NOT a fictitious force? (1) Centrifugal force, (2) Gravitational force, (3) Coriolis force, (4) Euler force
Which of the following is a characteristic of an inertial reference frame? (1) It is at rest or moves with constant velocity, (2) It is accelerating, (3) It rotates with respect to the stars, (4) It is attached to a spinning merry-go-round
Fill in the blank: In a rotating reference frame, the Coriolis force is proportional to the ________ of the object.
Fill in the blank: The centrifugal force in a rotating frame acts ________ from the axis of rotation.
Fill in the blank: The Coriolis force acts perpendicular to the ________ and the velocity of the object in a rotating frame.
Fill in the blank: The direction of the pseudo force is always ________ to the acceleration of the non-inertial frame.
True or False: Fictitious forces can be measured using a spring balance.
True or False: In a non-inertial reference frame, fictitious forces must be introduced to explain the motion of objects.
True or False: The Coriolis force is observed in rotating reference frames.
True or False: The Earth can always be considered an inertial reference frame for all physics experiments.
