The last SCIENTIFIC PRAYER

      

 The last SCIENTIFIC PRAYER.  You have 30 minutes to submit your answers. 

Q1. Define the following terms:

i. Science

ii. Technology

iii. Living cell

iv. Matter

Q2. State the particles of matter and give one example each.

Q3. What is an ion ?

Q4. Distinguish between an atom and an element.

Q5. Draw the atomic structure of an element with atomic number 12, indicating the proton number and electronic configuration.

Q6. State two importance a named gas.

Q7. Give two properties of gases.

Q8. Differentiate between reflection of light and refraction of light.

Q9. An a ray of light incident on a polished surface to create an angle of 40°. 

i. illustrate the phenomenon 

ii.Find the angle of refraction.

Q10. Define the following terms:

i. Ecosystem 

ii. Adaptation

iii. Habitat

iii. Niche

iv. Predation

v. Force

Q11. Distinguish between centripetal force and centrifugal force.

Q12. A pulley of mass 8.6kg travels with an acceleration of 5m/s² to a height. After some minutes it then falls freely to the ground. Find the: 

i. Force

ii. Weight

Q13. A bullet of mass 4kg was fired from a gun that was 5m above the ground. If after, firing the bullet travelled with a speed of 6m/s. Find the:

i. Potential energy

ii. Kinetic energy

iii. Mechanical energy 

Q14. Give a situation in which :

i. Unbalanced force is in action

ii. Friction is in action

Q15. State the Newton's first law of motion.

Q16. What's magnetism?

Q17. State the law of

i. Conservation of energy

ii. Magnetism

Q18. Distinguish between ruminants and monogastrics. 

Q19. State four stages involved in the hydrologic cycle.

Q20. State three mineral deficiency diseases with their causes.

Q21. Give three examples of organic solid waste.

Q22. What is climate change?

Q23. In this days of climate change, why would you recommend electric vehicles to a friend instead of fossil fueled-cars ?

   END OF THE LAST SCIENTIFIC PRAYER. Don't forget to study SCIENCE. 

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