METALS AND NON-METALS Q1: Name the non-metal which shows lustre? A: Iodine Q2: Name the non-metallic material which is ductile? A: carbon fibres Q3: What is the only metal that is liquid at room temperature? Ans . Mercury Q4: Name any metal which melt if you keep on your palm A: Gallium or Caesium Q5: Name the non-metal which is stored in water to prevent from combustion in air. A: Phosphorus Q6: Name the least reactive metal A: Gold Q7: Name any metal which can be cut with knife easily A: Sodium or Potassium Q8. What type of ion does metal form on loosing an electron? A: Cation Q9. Sodium metal is stored ina. Water b. Alcohol c. Kerosene d. Ether Ans . (c) Q10. Which one of the following gas burns with the “pop” sound? a. Oxygen b. Hydrogen c. Chlorine d. Hydrogen sulphide Ans . (b) Q11. Which gas produced by piece of burning charcoal? a. CO2 b. CO c. H2S d. O2 Ans . (b) Q12. What is the chemical symbol of gold? Ans . Au Q13. True or false? Steel is a chemical element. Ans . False - Alloy Q14. What is the most common metal found on Earth? Ans . Iron Q15. True or False? Sodium is a very reactive metal. Ans . True Q16. What three kinds of medals are awarded at the Olympic Games? Ans . Gold, silver and bronze Q17. True or false? Metal bonding with metal is known as a metallic bond. Ans . True Q18. Bronze is made from what two metals? Ans . Copper and tin Q19. What metal has the chemical symbol Pb? Ans . Lead QUESTIONS ON LIGHT Q1. Light is also known as… a) Magnetic Coupling b)Electromagnetic Radiation b) Wave Motion d)None of the Above A: b) Electromagnetic Radiation There are both electric and magnetic properties to light. Physicists call light an electromagnetic energy. All the different wavelengths of light make up the EM spectrum. We see visible light, but there are many different types of light energy out there. Q2. Light is a series of particles moving in a wavelike direction. True or False? A. True The physical structure of light has two parts. Light moves in a wavelike manner with wave frequency and wavelength. You will find tiny particles (generally called photons) in those waves. Those photons are little packets of energy. Q3: What is the speed of light in vacuum? A: 3X108 m/s or 299,792,458 metres per second Q4: What are the two characteristic behaviour of light? A: Electric and magnetic characters Q5: What is the approximate wave length and name the light which human can see? A: Visible light, has a wave length in the range of about 380 nm to about 740 nm Q6: What do you call for mechanism by which light is produced by animal A: Bioluminescence Q7: What do you call for the light produced by electrical and optical phenomenon? A: Electroluminescence (EL) is an optical phenomenon and electrical phenomenon in which a material emits light in response to the passage of an electric current or to a strong electric field. Q8. Mention any four region of electromagnetic spectrum A: Microwave, UV, IR, X-rays, FM, AM, etc Q9. Mention all the rainbow colours
Ans . VIBGYOR Q10. Which ray is used for night vision? Ans . IR Q11. What is light? Ans . A form of energy that travels in waves Q12. Which tool can be used to separate white light into different colors? Ans . Prism Q13. The colors that make up white light are called what? Ans . Visible spectrum Q14. What do light rays do as they pass from one transparent material to another? Ans Refract/Bend Q15. What does a lens do? Ans . Refract light Q16. Which ray is used for surface sterilization? Ans . X-ray Q17. Extend the acronym LASER Ans . LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION Q18. Extend AM and FM. Ans . AM: Amplitude Modulation FM: Frequency Modulation Q19. What do you call for naturally occurring optical phenomenon in which light rays are bent to produce a displaced image of distant objects or the sky? Ans . Mirage Q20. Is light an energy? Ans . Yes HEALTH AND DISEASES Q1. What is most Multi-drug Resistant(MDR) TB? A. Extensively drug-resistant tuberculosis (XDR TB) Q2. Which blood group is known as the 'Universal Recipient' ? A. AB Q3. Who discovered penicillin? A. Alexander Flemming in 1929 Q4. Which blood group is known as the „Universal donor‟? A. O Q5. Name the major groups of pathogen. A. Bacteria, Fungi, virus, Protozoa, Q6. Name the germ killing protein found in eye by UC Berkeley researchers this year. A. Cytokeratin 6A (small fragments of keratin protein found in the eye play a key role in warding off pathogens.) Q7. What is the body temperature of a normal man? A. 37° C Q8. Which element is main constituent of Haemoglobin? A. Iron(Fe) Q9. How many bones are there in normal adult human? A. 206 Q10. Where Red blood corpuscles are formed? A. Bone marrow Q11. What is the main component of bone and teeth? A. Calcium phosphate Q12. Which is the largest gland in human body? A. Liver Q13. Which is the largest organ in human body? A. Skin Q14. Which vitamin is responsible for healthy functioning of human eye? A. Vitamin A Q15. What is the average heart beat per minute in normal human? A. 70/minute Q15. How many chromosomes does human possess? A. 46 Q16. True or false? HIV is not a retro virus A. False Q17. What is the virus that cause swine flu? A. H1N1 Q18. Give long form for AIDS and HIV A. HIV: Human Immunodeficiency Virus AIDS: Acquired Immuno Deficiency Syndrome Q19. Extend SARS, it‟s a respiratory disease first identified by Dr. Carlo Urbani in year 2003? A. Severe Acute Respiratory Syndrome (Dr. Carlo Urbani was died with the disease ) Q20. Which disease became pandemic in year 2009? Hint: A viral disease A. Swine flu, caused by H1N1 Q21. Name the vaccine which prevent T.B and give its long form A. BCG (Bacillus Calmette Guerin)