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 12
A ball is dropped from rest in a train accelerating forward with acceleration a. Describe the path of the ball as seen by an observer inside the train.
A ball is thrown straight up in a train moving at constant velocity. Where does the ball land as seen by a passenger inside the train?
A car suddenly brakes, and a passenger lurches forward. Explain this phenomenon using the concept of non-inertial frames.
A mass m is placed on a frictionless table inside a train accelerating at a. What is the magnitude and direction of the fictitious force acting on the mass?
A merry-go-round rotates with angular velocity ω. A child of mass m sits at a distance r from the center. What is the magnitude of the centrifugal force acting on the child?
A pendulum is suspended from the ceiling of a train accelerating forward. In which direction will the pendulum bob be displaced?
A person is standing in an elevator that is accelerating upward with acceleration a. What is the apparent weight of the person if their mass is m?
A reference frame is accelerating upward with acceleration a. What is the effective acceleration due to gravity in this frame?
A train is moving with acceleration a to the right. What fictitious force does a passenger feel, and in which direction?
Describe the difference between inertial and non-inertial reference frames.
Describe the direction of the centrifugal force experienced by a passenger in a car turning left.
Describe the effect of Earth's rotation on the motion of projectiles over long distances.
Explain why a person feels pushed outward when a car takes a sharp turn.
Explain why astronauts in a rapidly spinning space station feel an artificial gravity.
Explain why Newton's first law does not hold in a non-inertial reference frame unless fictitious forces are considered.
If a reference frame is rotating with angular velocity ω, what is the expression for the centrifugal force on a mass m at a distance r from the axis?
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?
