Search
Question: A cyclist is pedaling at a constant speed and exerts a power of 200 W. If the cyclist incr..
Question: If a 1000 W heater is used for 3 hours, how much energy does it consume in kilowatt-hours?..
Question: A person lifts a box of mass 10 kg to a height of 2 m in 4 seconds. What is the power exer..
Question: A force of 15 N is applied at an angle of 60 degrees to the horizontal while moving an obj..
Question: A 3 kg object is moving with a velocity of 6 m/s. What is its kinetic energy?Options: 54 J..
Question: If a 2 kg object is dropped from a height of 5 m, what is its velocity just before it hits..
Question: A 10 kg object is moving with a velocity of 4 m/s. What is its momentum?Options: 40 kg m/s..
Question: An object is thrown vertically upwards with a speed of 15 m/s. What is the maximum height ..
Question: A car accelerates from rest to a speed of 20 m/s. If the mass of the car is 1000 kg, what ..
Question: A 10 kg object falls from a height of 20 m. What is its speed just before it hits the grou..
Question: What is the dimension of electric charge?Options: [M^1 L^2 T^-3 I^1][M^0 L^0 T^0 I^1][M^1 ..
Question: Which of the following quantities has the dimension [M^1 L^2 T^-2]?Options: EnergyForcePre..
Question: In the measurement 123.45, how many significant figures are present?Options: 3456Correct A..
Question: How many significant figures are in the number 5000?Options: 1234Correct Answer: 1Solution..
Question: In the number 0.007890, how many significant figures are there?Options: 3456Correct Answer..
Question: If a car\'s speed is measured as 60 km/h with an error of ±2 km/h, what is the range of po..
Question: A measurement of 30 m has an error of ±0.1 m. What is the true value if the measurement is..
Question: Which of the following quantities is dimensionally consistent with energy?Options: Force x..
Question: If the true value of a quantity is 200 and the measured value is 198, what is the percenta..
Question: The length of a rod is measured as 50 cm with an error of 1 cm. What is the minimum possib..
Question: A weight is measured as 10 kg with a relative error of 0.1. What is the absolute error?Opt..
Question: If a thermometer reads 100°C with an error of ±0.5°C, what is the maximum possible tempera..
Question: A student measures the width of a table as 1.2 m with a possible error of 0.02 m. What is ..
Question: How many seconds are there in an hour?Options: 603600600120Correct Answer: 3600Solution: T..
Question: Which of the following is the correct unit for measuring electric current?Options: VoltOhm..
Question: If a length is measured as 2.5 m, how many centimeters is that?Options: 252502.52500Correc..
Question: What is the conversion factor from kilometers to miles?Options: 0.6211.6090.5391.000Correc..
Question: When dividing 6.02 by 2.0, how many significant figures should the answer have?Options: 12..
Question: Which of the following is a correct representation of significant figures?Options: 0.00450..
Question: In the number 0.0004560, how many significant figures are present?Options: 3456Correct Ans..
