11th Class Physics MCQS Work and Energy Online Test 4

if-the-body-of-weight-e-2-80-98-w-e-2-80-99-is-lifted-through-a-height-e-2-80-98-h-e-2-80-99then-the-work-done-will-be-3-a_-_wh,if-velocity-27-v-27-of-an-object-is-double-2-c-then-k-e-becomes-3-a_-_four-times,if-velocity-and-mass-of-a-moving-object-are-doubled-then-k-e-becomes-3-a_-_8-26-nbsp-3-btimes,if-velocity-of-a-moving-object-is-double-2-c-its-k-e-becomes-3-a_-_four-times,in-earth-e-2-80-99-s-gravitational-field-2-c-work-done-is-a-closed-path-is-3-a_-_zero,is-a-bio-fuel_-_ethanol,kilo-watt-hour-is-the-unit-of-3-a_-_energy,kilo-watt-second-is-the-unit-of-3-a_-_energy,kinetic-energy-of-a-body-of-mass-m-moving-with-a-velocity-is-given-by-3-a_-_5-c-28-0-crac-7-b-1-7-d-7-b-2-7-dmv-5-e-2-5-c-29,mass-is-highly-concentrated-form-of-3-a_-_energy,one-watt-hour-is-equal-to-3-a_-_3-6-kj,original-source-of-energy-for-biomass-is-3-a_-_sun,original-sources-of-energy-for-biomass-is-3-a_-_sun,photocell-converts-light-energy-into-3-a_-_electrical-energy,power-is-the-dot-product-of-force-and-3-a_-_velocity,power-of-an-electric-heater-is-28-approximate-power-29-3-a_-_1-k-w,pull-of-earth-on-a-mass-of-10-kg-on-the-surface-of-the-earth-is-3-a_-_98-n,s-i-unit-of-work-is-3-a_-_joule,scalar-product-of-force-and-velocity-is-3-a_-_power,the-average-power-and-instantaneous-power-becomes-equal-if-work-done-at-3-a_-_uniform-rate,which-of-the-following-quantity-is-calculated-by-multiplying-force-with-velocity-3-a_-_power,work-has-same-dimensions-as-that-of-3-a_-_torque