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Physics Quiz
Quiz by Madeeha Usman - 79151/TCHR/EJHM
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19 questions
Show answers
- Q1In _______________ Object will return to original position after slight disturbance.unstable equilibriumstable equilibriumneutral equilibrium60s
- Q2Which one of the following activities does not apply the turning effect of a force?sliding down a slidemoving up and down on the see-sawrowing a boat60s
- Q3A uniform metre ruler of weight 0.2N balances at the 60-cm mark when a weight W is placed at the 80-cm mark. What is the value of W?0.15 N0.2N0.1N120s
- Q4The centre of mass of a bodymust be in a solid part of the bodyhas a fixed positionis always outside the body60s
- Q5___________energy is the energy a body possesses due to its movementpotentialkineticcentripetal60s
- Q6_________ is defined as the rate of doing workpowerworkdonepressure60s
- Q7A crane lifts a load of 8000N through a vertical distance of 20m in 4s. What is the average power during this operation?1600W100W40000W120s
- Q8A toy car A moving with a speed of 30 m/s has a kinetic energy of 900J. Another toy car B has twice the mass of toy car A. If toy car B moves with a speed of 15 m/s, what is the kinetic energy of toy car B?900J1800J450J120s
- Q9During free fall, work is done bygravitational forcefrictional forcemagnetic force60s
- Q10Kinetic energy is transformed into gravitational potential energy whena rubber band is stretcheda raindrop falls from the skya stone is thrown upwards60s
- Q11Which expression is used to calculate force?pressure x areawork x distanncepower + time60s
- Q12A rock of mass 20kg is travelling in space at a speed of 6m/s. What is its kinetic energy?360120 J240 j120s
- Q13A drinking glass has a low centre of gravity becauseits contents are denserit is heavyit has a broad base60s
- Q14The pressure in a liquid decreases with----------increase in surface areaDecrease in surface areaIncrease with depth60s
- Q15A block of wood measuring 6m by 3m by 0.5m is placed on a table. If the mass of the block of wood is 4500kg, what is the pressure on the table due to the block? take gravitational force acting on a mass of 1kg to be 10N5000Pa9000Pa2500Pa120s