1. Light travels in —A) Curved lineB) Straight lineC) Zig-zag pathD) Random directionAnswer: B) Straight lineExplanation: Light travels in a…
Browsing: Physics
1. Heat is a form of —A) Light energyB) Kinetic energyC) Potential energyD) Electrical energyAnswer: B) Kinetic energyExplanation: Heat is…
1. The rate of change of position of a body is called —A) SpeedB) VelocityC) AccelerationD) Displacement Show Answer Answer:…
1. A magnetic field is produced by:A) Electric charges at restB) Moving electric chargesC) Gravitational forcesD) Heat energyAnswer: B) Moving…
1. The kinetic theory of matter explainsA) Behavior of matter in terms of motion of particlesB) Color of matterC) Shape…
1. How many fundamental forces exist in nature?A) 2B) 3C) 4D) 5Answer: C) 4Explanation: There are four fundamental forces –…
1. The study of electric current and magnetic fields together is calledA) ElectromagnetismB) MagnetismC) ElectrostaticsD) ElectrochemistryAnswer: A) ElectromagnetismExplanation: Electromagnetism deals…
1. Who discovered nuclear fission?a) Hahn & Strassmannb) Einsteinc) Rutherfordd) CurieAnswer: aExplanation: Otto Hahn and Fritz Strassmann (1938) discovered splitting…
1. The spontaneous emission of radiation from unstable nuclei is calledA) RadioactivityB) FusionC) FissionD) IonizationAnswer: A) RadioactivityExplanation: Radioactivity is the…
1. Who invented the telescope?a) Newtonb) Galileoc) Herscheld) KeplerAnswer: bExplanation: Galileo improved the refracting telescope in 1609 to observe celestial…