UHS Mdcat 2024 Solved With Explanation | mosaicbro.com

UHS Mdcat 2024 Solved With Explanation

Past Mdcat Paper of UHS 2024 #Uhs #Mdcat #2024

7 of 137 questions (Page 19 of 20)

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127 According to Newton's Law of Motion the mass of the object is a quantitative measure of its:
Correct Answer: B
Explanation: Mass is a measure of an object's inertia, or resistance to changes in its state of motion.
128 1KWh = ______ J?
Correct Answer: C
Explanation: 1 kWh = 3.6 × 10⁶ J (3.6 megajoules), as 1 W = 1 J/s and 1 hour = 3600 seconds.
129 Which of the following is a non-conservative force?
Correct Answer: A
Explanation: Frictional force is non-conservative because the work done depends on the path taken and is not recoverable.
130 Work done is equal to:
Correct Answer: A
Explanation: Work done is calculated as the product of force (effort) and displacement (distance) in the direction of the force.
131 When a force of 1N displaces its point of application by 1m in the direction of force, the work done is
Correct Answer: A
Explanation: Work done = Force × Displacement = 1 N × 1 m = 1 J (joule).
132 An electric motor is used to lift the weight of 2.0N through a vertical distance of 100 cm in 4 sec. What is the power output of the motor?
Correct Answer: B
Explanation: Power = Work/Time = (Force × Distance)/Time = (2 N × 1 m)/4 s = 0.5 W.
133 The centripetal acceleration of an object moving along a circle of radius 'r' with an angular speed 'ω' is given by the formula:
Correct Answer: A
Explanation: Centripetal acceleration is given by a = rω², where ω is the angular velocity.
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