
PHYSICS FORMATIVE SEM 1
Quiz by Suman Dubey
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20 questions
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- Q1The unit of work is joule. The other physical quantity that has same unit isEnergyVelocityForcePower30s
- Q2The spring will have maximum elastic potential energy when it isneither (a) nor (b)(a) completely stretched(b) completely compressedboth (a) and (b)30s
- Q3The energy possessed by an oscillating pendulum of a clock isBoth Kinetic and Potential energyCannot sayOnly Potential energyOnly Kinetic energy30s
- Q4The gravitational potential energy of an object is due toheight above the earth's surface.Its massall of the aboveacceleration due to gravity30s
- Q5A ball is dropped from a height of 10 m. Which of the following statements best describes the energy change during the fall?Its potential energy is equal to the kinetic energy during the fallThe potential energy decreases and the kinetic energy increases during the fall.The potential energy is 0 and kinetic energy is maximum while it is falling.Its potential energy increases and kinetic energy decreases during the fall45s
- Q6If the velocity of a body is doubled its kinetic energydoes not changebecomes halfgets doubledbecomes 4 times45s
- Q7A students caries a bag weighing 5 kg from the ground floor to his class on the first floor that is 2 m high. What is the work done by the boy? (g = 10 m s -2 )10 J100 J1 J1000 J60s
- Q8The work done is said to be zero if the body isdisplaced opposite to the direction of the force applied.moves obliquely to the direction of the force applieddisplaced in the same direction as that of the force applieddisplaced perpendicular direction to the force applied.60s
- Q9When a body slides down on an inclined surface, which holds true?It has both kinetic and potential energyIt has no energyIt has potential energy onlyIt has kinetic energy only60s
- Q10Which of the following is correct?All of the aboveA piston with compressed air possessed potential energyA running player acquires Kinetic EnergyA fruit hanging from the tree possesses gravitational potential energy60s
- Q111 J is the amount of work done on an object when a force of 1 N displaces it along its line of action by100 m1 km1 cm1 m30s
- Q12Newton meter per second is unit ofWorkPowerForceEnergy30s
- Q13A dog weighing 25 kg, while chasing a cat, jumps over a fence of height 1.6 m. What is the potential energy of dog at the top of fence? (g=10 m s-2 )480 J160 J380 J320 J60s
- Q14How much power is required to do 180 J of work in 2.4s?7.5 W75 W430 W178 W60s
- Q15In which of the situations is NO work being done?lifting a box from the ground to a table topcarrying a box up a flight of stairspushing a box across the floorholding a box overhead30s