🔬 General Science Solved MCQs with Answers

Practice 4010 approved 🔬 General Science questions with verified answers from the 🌐 Current Affairs & GK subject for Pakistan exams.

4010 solved MCQs

The amount of work required to stop a moving object is equal to ______?Answer: The kinetic energy of the object A line drive to the short stop is caught at the same height as it was it was originally hit. Over it's entire flight the work done by gravity and the work done by air resistance, respectively are _____?Answer: Zero; negative An object moving in a circle at constant speed ______?Answer: Has an acceleration of constant magnitude A ball is thrown upward into the air with a speed that is greater than terminal speed. On the way up it shows and after it's speed equals the terminal speed but before it gets to the top of its trajectory ____?Answer: It continues to slow down A feather and a lead ball are dropped from the rest in vacuum on the moon. The acceleration of the feather is ______?Answer: The same as that of the lead ball What is the internal energy of a system?Answer: The energy of the atoms of the system Wheatstone bridge is ______?Answer: Circuit A Wheatstone bridge is an electrical circuit used to measure an unknown electrical resistance by balancing two legs of the bridge circuit. It consists of four resistors—two known, one unknown, and one variable—and a sensitive ammeter (or galvanometer). The bridge is balanced when the variable resistor is adjusted so that no current flows through the ammeter, allowing the unknown resistance to be calculated with high precision using a simple formula.Answer: 47000 A stone is projected vertically upwards from the ground at an initial speed of 15 m/s air resistance is negligible. What is the maximum height reached by the stone?Answer: 11 m If the mass of a particle is zero its speed must be ______?Answer: c Light from some stars shows an apparent change in frequency because of ______?Answer: Relative motion A virtual image is one _______?Answer: From which light rays diverge but do not pass through For an electromagnetic wave the direction of the vector EXB gives _____?Answer: The direction of the wave propagation Lenz' Law can explain _____?Answer: Diamagnetism only A square loop of wire lies in the plane of the page. A decreasing magnetic field is directed into page. The induced current in the loop is ____?Answer: Counterclockwise A constant current is tent through a helical coil. The coil ______?Answer: Tends to get shorter A hollow metal sphere is charged to a potential V. The potential at its center is _____?Answer: V Which law of thermodynamics states that the entropy of an isolated system always increases over time?Answer: Second Law of Thermodynamics Pepsin ___ an enzyme used in digestion.Answer: Is Termite belong to _______?Answer: Isoptera Eggs in Culex mosquitoes are _____?Answer: Cigar-shaped When two male pronuclei unit with a female pronucleus is termed as _______?Answer: Fertilization. The egg type in Amphioxus is ______?Answer: Microlecithal These all extinct forms, from Mesozoic to Cretaceous with exception of ______?Answer: A surviving lineage Neural gland is main excretory organ found in ______?Answer: Herdmania The greater amount of DNA in a cell of an individual shows that it is _______?Answer: Undergoing DNA replication Hydrogenation of cis-2-butane produces _______?Answer: Butane Endoplasmic reticulum is lacking in _______?Answer: Prokaryotic cells A semi-indispensable amino acid for human consumption is ______?Answer: Arginine The pink color of phenolphthalein in alkaline medium is ______?Answer: Due to negative form