MCQ Speed and Velocity Chapter 7 Class 9 Science Advertisement MCQ’s For All Chapters – Science Class 9th 1. The rate of motion of an object is measured byDistanceDisplacementSpeedAccelerationQuestion 1 of 202. Speed is defined asDistance travelled per unit timeDisplacement per unit timeForce per unit timeEnergy per unit distanceQuestion 2 of 203. The SI unit of speed iskm/hm/sm²/skm/s²Question 3 of 204. A car covers 100 km in 2 hours.Its average speed is25 km/h40 km/h50 km/h75 km/hQuestion 4 of 205. If a car travels 16 m in 4 s and another 16 m in 2 s, its average speed is4 m/s5.33 m/s6 m/s8 m/sQuestion 5 of 206. Speed with direction is known asAccelerationDisplacementVelocityForceQuestion 6 of 207. The SI unit of velocity ism/sm/s²km/h²m²/sQuestion 7 of 208. The speed of an object need not be constant becauseTime changesDistance changesIt can have non-uniform motionIt remains zeroQuestion 8 of 209. Average speed is calculated byTotal displacement ÷ Total timeTotal distance ÷ Total timeTotal velocity ÷ Total timeTotal force ÷ Total distanceQuestion 9 of 2010. A car’s odometer measuresSpeedDistance travelledAccelerationVelocityQuestion 10 of 2011. The average velocity of an object can be zero even if its average speed is not zero whenIt moves uniformlyIt returns to its starting pointIt moves only in one directionIts time is zeroQuestion 11 of 2012. Usha swims in a 90 m pool, covers 180 m in one minute (back and forth).Her average velocity is3 m/s1.5 m/s0 m/s9 m/sQuestion 12 of 2013. If an object travels 400 km in 8 hours, its average speed is25 km/h40 km/h50 km/h60 km/hQuestion 13 of 2014. To find velocity, we needDistance and timeDisplacement and timeForce and massEnergy and timeQuestion 14 of 2015. Speed and velocity differ becauseVelocity has direction, speed doesn’tSpeed has direction, velocity doesn’tBoth are scalar quantitiesBoth are vector quantitiesQuestion 15 of 2016. The arithmetic mean of initial and final velocity givesInstantaneous speedAverage speedAverage velocity (uniform acceleration)AccelerationQuestion 16 of 2017. When velocity is constant, thenSpeed changesAcceleration is zeroTime decreasesDisplacement becomes zeroQuestion 17 of 2018. The formula to convert 50 km/h into m/s is50 × 5/1850 × 18/550 ÷ 1850 ÷ 36Question 18 of 2019. A cyclist moving in a straight line doubles his speed.His velocityRemains sameBecomes halfDoublesBecomes zeroQuestion 19 of 2020. The quantity that tells both how fast and in which direction an object moves isSpeedDisplacementVelocityAccelerationQuestion 20 of 20 Loading...
I got 15/22
18 out of 22
I always prepare mcq from this website.
his platform provides application-level MCQs. During my 7th-grade exam, I noticed that some questions were directly from eVidyarthi. Since then, I’ve been using this website consistently.
I got 22/22 make it quite a more kinda tough
It was Easy make it more tough
It is not so hard make it hard