Discoveries & Invention MCQs - Everyday Science Practice | PakExamPoint
Practise Discoveries & Invention MCQs in Everyday Science. Attempt multiple-choice questions, check answers and revise related subtopics.
Discoveries & Invention MCQs and revision practice
Study Discoveries & Invention through multiple-choice questions in Everyday Science. This subtopic contains 310 practice questions. Read the wording carefully, compare the options and attempt an answer before checking the solution in learning mode.
Use these Discoveries & Invention MCQs to identify the facts, rules or methods you need to revise. Where an explanation is available, work through it and write down why your chosen option was correct or incorrect. Revisit difficult questions after reviewing your notes, then use exam mode for timed practice.
Explanation The most effective way to break the chain of infection is by Placing the patient in isolation *** The most effective way to break the chain of infection by: cleaning your hands frequently, staying up to date on your vaccines (including the flu shot), covering coughs and sneezes and staying home when sick
Explanation The Wright Brothers , Orville and Wilbur , invented and flew the first successful airplane. This historic flight took place on December 17, 1903 , in Kitty Hawk , North Carolina.
Explanation Sir Isaac Newton's three law of motions In 1686 , he presented his three laws of motion in the “ Principia Mathematica Philosophiae Naturalis .” In the first law, an object will not change its motion unless a force acts on it. In the second law, the force on an object is equal to its mass times its acceleration. In the third law, when two objects interact, they apply forces to each other of equal magnitude and opposite direction. ND5-07-2023
رابرٹ واٹسن واٹ کا نام درج ذیل میں سے کس ایجاد سے وابستہ ہے؟
A. Television
B. Radio
C. Radar technology
D. None of these
Check answer and explanation
Answer: Radar technology
Explanation Robert Watson-Watt was a Scottish engineer and inventor who is credited with developing the first practical radar system. He demonstrated the first radar system in 1935 . He was knighted in 1942 for his contributions to the development of radar technology. Radar ( Radio Detection and Ranging ) is a system that uses radio waves to detect and locate objects , and it played a crucial role in World War II.
Explanation Edward Jenner was an English physician and scientist . He discovered the first vaccine for smallpox in 1796 . He observed that milkmaids infected with cowpox were protected from smallpox . This led to the development of vaccination (cowpox-based immunity method). He is known as the Father of Immunology . Last verified on 02-05-2026
Explanation Very high frequency is ITU designation for the range of radio frequency electromagnetic waves from 30 to 300 megahertz , with corresponding wavelengths of ten to one meters.
Explanation Albert Einstein is one of the most influential physicists of the 20th century. In 1905 Einstein published four landmark papers in physics. Einstein was awarded the Nobel Prize for his work on: Special theory of relativit y Albert Einstein received his Nobel Prize one year later, in 1922.