Non-Inertial Reference Frames
Physics ⇒ Mechanics
Non-Inertial Reference Frames starts at 11 and continues till grade 12.
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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 mass m is placed on a frictionless table inside a train accelerating at a. What is the magnitude and direction of the pseudo force acting on the mass as seen by an observer inside the train?
A person is standing in an elevator that is accelerating upward. Is the elevator an inertial or non-inertial reference frame?
A person is standing on a rotating platform. If the platform's angular velocity increases, what additional fictitious force acts on the person?
A rotating merry-go-round is an example of which type of reference frame?
A train suddenly starts moving forward. A passenger standing inside feels pushed backward. What is the fictitious force acting on the passenger called?
Describe the difference between real forces and fictitious forces.
Describe the effect of Earth's rotation on the motion of projectiles over long distances.
Explain why a person feels heavier in an elevator accelerating upward.
Explain why astronauts in an orbiting spacecraft feel weightless, even though gravity is acting on them.
Explain why Newton's first law does not hold in a non-inertial reference frame unless fictitious forces are considered.
Explain why the concept of non-inertial reference frames is important in physics.
State the mathematical expression for the Coriolis force acting on a mass m moving with velocity v in a rotating frame with angular velocity ω.
What is a non-inertial reference frame?
