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Science
Class 9

CBSE · Class 9 · Science

Motion

Chapter 4Motion, Force, Work and SoundCBSE / NCERT · Secondary & Senior Secondary

4 worlds · 2 labs for this chapter.

Topics

Kinematics
- Distance and displacement
- Speed, velocity and acceleration
- Position-time and velocity-time graphs
- Constant-acceleration equations
- Uniform circular motion

Learning objectives

Interpret a motion graph and calculate displacement or acceleration.

Worlds

Places to explore freely · 4 worlds

WorldFree Fall & Air ResistanceRace a hammer and a feather through a vacuum, then ride a 45 m drop tower until the air stops you speeding up
WorldMotion & ForcesEight experiments on one track, Class 6–9 or Class 10–12 — light gates, ticker tape, friction, a ramp, a crash — each stop measured by the cart itself
WorldCircular MotionGoing round needs a pull toward the middle: hold on and let go, ride a big wheel on a scale, take a bend on ice.
WorldStopping DistanceTwice as fast needs four times the road, and rain makes it worse: brake a test car on a 120 m road

Main lab

Built for this chapter · 1 lab

Main labMotionPhysics

More labs

Also fit this chapter · 1 lab

LabGravitationPhysics

Practice

Questions for Class 9 Science, with worked answers, on screen or as a printed paper.

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