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General Science Quiz 158 (20 MCQs)

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1. What is the central region of an atom called
2. Plant and animal cells are examples of
3. These large towers of fire shoot out from the sun and can extend millions of miles away from the sun and bring electrically charged particles to Earth, creating beautiful Aurora's in the night sky.
4. What happens when two forces act in the same direction?
5. Electrons fill the energy levels of an atom from the innermost layer to the outermost layer.
6. Amount of matter in an object.
7. Which of the following is a unit of force:pound, liter, or meter?
8. A force is a push or a pull.
9. Gas lighter than the air
10. Land converted with forest in Pakistan is only.
11. The main constituent of the air is
12. The right or date (twice each year) at which the sun crosses the celestial equator, when day and night is of equal length (about September 22 and March 20).
13. Which of the following correctly describes how to write a scientific name?
14. What is the percentage of oxygen in the atmosphere?
15. Each energy level can hold an unlimited number of electrons.
16. ..... are the building blocks of matter.
17. Although his work didn't get much attention from the scientific community until after his death, this monk and scientist opened the door for modern genetics through his study of pea plants.
18. Mr. S set up an experiment to see how the mass of a ball affects the distance it rolls off a ramp. What is the dependent variable?
19. If I pull on a pulley with a force of 20 N but am able to lift an object that has a 2, 000 N resistance, what is the mechanical advantage of the pulley?
20. What is the correct order of arrangement of teeth from front to back of the mouth?
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