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Physics
Class 11

ICSE · Class 11 · Physics

Laws of Motion

Chapter 3ISC · Class XI · examination 2028

9 worlds · 1 lab for this chapter.

Topics

Dynamics
- Newton’s laws and impulse
- Conservation of momentum
- Free-body diagrams and connected bodies
- Friction and inclined planes
- Circular motion and banking

Learning objectives

Draw a free-body diagram and solve the resulting force equations.

Worlds

Places to explore freely · 9 worlds

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
WorldPulleys, Ramps & WorkRig a block and tackle, haul a trolley up a ramp, time a winch: a machine trades force for distance, never saves work
WorldMomentum & CollisionsSwing a wrecking ball through a brick wall, crash a sled with and without a crumple zone, and couple railway wagons
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
WorldRocket PropulsionStatic-fire a rocket engine on a load cell, then fly a 12-tonne sounding rocket through the thinning air into space
WorldNewton’s Laws of MotionBrake a 1,720 t freight train from 100 km/h and watch it need nearly a kilometre: Newton’s laws in a rail yard
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.
WorldFrictionWax a playground slide, mat it, rain on it, then tilt a test chute until a rubber boot finally lets go
WorldStopping DistanceTwice as fast needs four times the road, and rain makes it worse: brake a test car on a 120 m road

Labs

Fit this chapter · 1 lab

LabForce and Laws of MotionForce, mass, acceleration

Practice

Questions for Class 11 Physics, with worked answers, on screen or as a printed paper.

Open the question bank

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