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Question: What is the relationship between power, voltage, and current in an electrical circuit?Opti..
Question: If a person lifts a 50 kg box to a height of 2 meters in 5 seconds, what is the power exer..
Question: A 1000 kg car accelerates from rest to a speed of 20 m/s in 10 seconds. What is the averag..
Question: In a hydraulic lift, if the input power is 2000 W and the output power is 1800 W, what is ..
Question: A light bulb uses 60 W of power. How much energy does it consume in 1 hour?Options: 3600 J..
Question: Which of the following statements about power is true?Options: Power is always conservedPo..
Question: If a car engine has a power output of 150 kW, how much work can it do in 2 minutes?Options..
Question: A machine does 500 J of work in 10 seconds. What is its power output?Options: 50 W100 W200..
Question: What is the SI unit of power?Options: JouleWattNewtonPascalCorrect Answer: WattSolution: P..
Question: A 3 kg object is moving with a speed of 4 m/s. What is its total mechanical energy?Options..
Question: A 10 kg object falls freely from a height of 20 m. What is its speed just before hitting t..
Question: A 2 kg ball is thrown vertically upwards with a speed of 20 m/s. What is the maximum heigh..
Question: A roller coaster starts from rest at a height of 30 m. What is its speed at the lowest poi..
Question: A 5 kg object is lifted to a height of 10 m. What is the work done against gravity?Options..
Question: A car of mass 1000 kg is moving at a speed of 20 m/s. What is its kinetic energy?Options: ..
Question: A pendulum swings from a height of 2 m. What is the speed at the lowest point of the swing..
Question: A block of mass 2 kg is released from a height of 5 m. What is its speed just before it hi..
Question: A car accelerates from rest to a speed of 30 m/s. If the mass of the car is 800 kg, what i..
Question: A 10 kg object is lifted to a height of 2 m. What is the work done against gravity?Options..
Question: A 3 kg object is moving with a velocity of 4 m/s. What is its kinetic energy?Options: 12 J..
Question: If a machine does 500 J of work in 10 seconds, what is its power?Options: 50 W100 W200 W50..
Question: A 2 kg object is dropped from a height of 5 m. What is its potential energy at the top?Opt..
Question: An object is lifted vertically 10 m against gravity. If the mass of the object is 5 kg, wh..
Question: A spring with a spring constant of 200 N/m is compressed by 0.1 m. What is the potential e..
Question: If a force of 5 N is applied at an angle of 60 degrees to the horizontal while moving an o..
Question: A car of mass 1000 kg is moving with a speed of 20 m/s. What is its kinetic energy?Options..
Question: A block of mass 2 kg is pushed along a horizontal surface with a force of 10 N. If the blo..
Question: What is the relationship between the units of work and energy?Options: They are the sameWo..
Question: Which of the following quantities is dimensionless?Options: Reynolds numberForceEnergyPres..
Question: What is the dimensional formula for electric charge?Options: [M^1 L^2 T^-3 I^-1][M^0 L^0 T..