ETEA General Recruitment Everyday Science: Physics MCQs

ETEA General Recruitment Everyday Science: Physics MCQs — sample questions

1. Question 1

   Q1. Sound travels fastest in:

   • A) Solid
   • B) Liquid
   • C) Gas
   • D) None of these

   Answer: Solid

   Explanation: Solid is the scientifically accurate choice. The concept tested here is core everyday science for MDCAT, ECAT, and general ability papers.

2. Question 2

   Q2. Fiber optics are primarily used in which field?

   • A) Telecommunication
   • B) Laboratory
   • C) Factory
   • D) None of these

   Answer: Telecommunication

   Explanation: Telecommunication is the scientifically accurate choice. The concept tested here is core everyday science for MDCAT, ECAT, and general ability papers.

3. Question 3

   Q3. An ice mass that covers more than 50,000 square kilometers of land area is classified as an:

   • A) Glacier
   • B) Ice cap
   • C) Ice field
   • D) Ice sheet

   Answer: Ice sheet

   Explanation: An ice sheet is defined as a continental glacier covering more than 50,000 km²; the two existing ice sheets are in Antarctica and Greenland.

4. Question 4

   Q4. The instrument used to measure the velocity of wind is a barometer.

   • A) Right
   • B) Wrong
   • C) Ambiguous
   • D) No idea

   Answer: Wrong

   Explanation: Wind velocity is measured by an anemometer, not a barometer; a barometer measures atmospheric pressure.

5. Question 5

   Q5. In a fission nuclear reaction, a heavy nucleus breaks up into smaller nuclei. In contrast, when two or more lighter nuclei fuse to form a heavier nucleus, the reaction is called a:

   • A) Chemical reaction
   • B) Nuclear reaction
   • C) Fission nuclear reaction
   • D) Fusion nuclear reaction

   Answer: Fusion nuclear reaction

   Explanation: Nuclear fusion is the reaction in which two or more light atomic nuclei combine to form a heavier nucleus, releasing enormous energy - the process that powers the Sun.