MCQ Chapter 8 Class 7 Science Curiosity NCERT Advertisement Measurement of Time and Motion 1. What determines which runner is faster in a race?The runner who starts firstThe runner who covers more distance in the same timeThe runner with the longest strideThe runner who finishes lastQuestion 1 of 202. What is the speed of an object?The time taken to cover a distanceThe distance covered in unit timeThe mass of the objectThe direction of motionQuestion 2 of 203. What is the SI unit of speed?Kilometre/hourMetre/minuteMetre/secondCentimetre/secondQuestion 3 of 204. In Example 8.1, what is the speed of Swati’s bicycle in m/s?2 m/s3 m/s4 m/s5 m/sQuestion 4 of 205. How is the distance covered by an object calculated if speed and time are known?Distance = Speed / TimeDistance = Speed × TimeDistance = Time / SpeedDistance = Speed + TimeQuestion 5 of 206. In Example 8.2, how far is the city Raghav travels to?50 km100 km150 km200 kmQuestion 6 of 207. What does a speedometer measure in a vehicle?Distance travelledSpeed in km/hTime takenFuel consumptionQuestion 7 of 208. What does an odometer measure in a vehicle?SpeedTimeDistance travelledFuel levelQuestion 8 of 209. What is linear motion?Motion along a curved pathMotion along a straight lineMotion in a circleMotion with changing directionQuestion 9 of 2010. When is an object said to be in uniform linear motion?When its speed changes constantlyWhen it moves along a curved pathWhen it moves with a constant speed along a straight lineWhen it stops periodicallyQuestion 10 of 2011. In Fig.8.11, when is the train in uniform linear motion?Between A and BBetween B and CBetween C and DBetween A and DQuestion 11 of 2012. Which train in Table 8.3 is in uniform linear motion?Train XTrain YBoth Train X and Train YNeither Train X nor Train YQuestion 12 of 2013. What is a characteristic of non-uniform linear motion?Covering equal distances in equal intervals of timeMoving with a constant speedCovering unequal distances in equal intervals of timeMoving in a circular pathQuestion 13 of 2014. Why do we often use average speed?Because objects always move at constant speedBecause uniform motion is common in daily lifeBecause objects seldom move with constant speed over long distancesBecause speedometers are inaccurateQuestion 14 of 2015. In Question 1 of Let Us Enhance Our Learning, what is the speed of the car in km/h?15 km/h54 km/h150 km/h540 km/hQuestion 15 of 2016. In Question 2, which runner has greater speed?The runner completing 400 m in 50 sThe runner completing 400 m in 45 sBoth have the same speedCannot be determinedQuestion 16 of 2017. In Question 4, what is the speed of the train in km/h?60 km/h180 km/h540 km/h720 km/hQuestion 17 of 2018. In Question 5, how does the horse’s speed compare to the train’s speed?The horse is fasterThe train is fasterBoth have the same speedCannot be comparedQuestion 18 of 2019. In Question 9, which type of motion is more common in daily life?Uniform motionNon-uniform motionBoth are equally commonNeither occurs in daily lifeQuestion 19 of 2020. In the exploratory project about swings, what is investigated?The effect of swing colour on time periodThe effect of swing length and rider weight on time periodThe effect of swing height on speedThe effect of swing material on motionQuestion 20 of 20 Loading...
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