MCQ Science Curiosity Chapter 5 Class 8 CBSE Board Advertisement Exploring Forces 1. What happens to an object’s weight on the Moon?It becomes one-sixth of its Earth weightIt doublesIt remains the sameIt becomes zeroQuestion 1 of 202. Does an object’s mass change on the Moon?It doublesIt becomes one-sixthIt remains the sameIt becomes zeroQuestion 2 of 203. How can a ball stop before point A on a horizontal surface?Decrease frictional forceIncrease gravitational forceIncrease frictional forceApply magnetic forceQuestion 3 of 204. How can a ball stop after crossing point A on a horizontal surface?Increase frictional forceDecrease frictional forceIncrease gravitational forceApply electrostatic forceQuestion 4 of 205. Why do we slip on ice?Increased frictionIncreased gravityReduced frictionMuscular forceQuestion 5 of 206. What indicates a force acting on an object in non-uniform motion?No force is actingConstant speedChange in speed or directionOnly gravityQuestion 6 of 207. What is the maximum weight a 0 to 10 N spring balance can measure?5 N10 N15 N20 NQuestion 7 of 208. What role does muscular force play in the human body?Generates magnetic fieldsReduces joint frictionAids digestion and circulationAttracts objects to EarthQuestion 8 of 209. Why do objects fall straight down when dropped?Frictional forceMagnetic forceElectrostatic forceGravitational forceQuestion 9 of 2010. What happens to an object’s speed when thrown upwards?It remains constantIt increases continuouslyIt decreases until stopping momentarilyIt becomes zero immediatelyQuestion 10 of 2011. What force does a fielder use to stop a ball?Electrostatic forceMuscular forceGravitational forceMagnetic forceQuestion 11 of 2012. What force is used to stretch a rubber band?Frictional forceGravitational forceMuscular forceElectrostatic forceQuestion 12 of 2013. Why does a coin sink while a wooden block floats in water?The coin is less denseThe block’s weight equals the buoyant forceThe block is denserThe coin has no gravityQuestion 13 of 2014. What force acts on a ball during its upward motion when thrown vertically?Muscular force upwardGravitational force downwardFrictional force upwardElectrostatic force downwardQuestion 14 of 2015. What force acts on a ball at its topmost position when thrown vertically?Muscular force upwardNo forceGravitational force downwardFrictional force downwardQuestion 15 of 2016. What force acts on a ball during its downward motion after being thrown vertically?Muscular force downwardElectrostatic force downwardGravitational force upwardGravitational force downwardQuestion 16 of 2017. What force causes a balloon to attract hair strands after rubbing on wool?Gravitational forceFrictional forceElectrostatic forceMagnetic forceQuestion 17 of 2018. What force do animals use for movement and survival?Electrostatic forceMagnetic forceMuscular forceGravitational forceQuestion 18 of 2019. Why does a charged object attract an uncharged object?Gravitational forceFrictional forceMagnetic forceElectrostatic forceQuestion 19 of 2020. Why does an object stop sliding on a surface?Electrostatic forceMuscular forceFrictional forceMagnetic forceQuestion 20 of 20 Loading...
Leave a Reply