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Physics Quiz 4 (24 MCQs)

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1. Metals conduct heat well because of their.
2. The matter in all three phases (solid, liquid, and gas)is composed of tiny particles, called _____ which are continuously in motion.
3. The hydrogen atom has _____ protons in its nucleus.
4. Mohs is the unit of hardness of a.
5. _____ is mainly due to salts of calcium particularly the soluble bicarbonates fromed by the action of rain water and carbon dioxide from air on limestone.
6. The neutron is the particle with no electric charge, whereas the proton has a.
7. Physics deals with properties of matter forces and energy and their various.
8. _____ is done when a force makes an object move.
9. _____ is defined as quantity of matter in an object.
10. The angular of a rotating object is the angle through which it moves per unit.
11. Which animal has no sweat glands?
12. Matter that has gained or lost some electric charge has.
13. How much the nucleus of an atom is smaller than that of the atom?
14. What is formed when two substances are mixed together and they do not react chemically.
15. _____ is a turning force, the rotational analogue of normal force in linear motion.
16. In a body that moves in a circular path around a central point the force that acts toward the centre and keeps the body at a constant distance from the centre is called.
17. What is called an abbreviation for the name of an element consisting of first letter or first two letters of its name?
18. When two substances are mixed together and they react with each other chemically then a _____ is formed.
19. Dry ice has a temperature of.
20. _____ is a unit of power.
21. Give the formula of ordinary water.
22. Hardness of a material depends on attraction between molecules or atoms of the.
23. Velocity of a particle is defined as the rate of change of displacement with.
24. The inter-atomic or inter-molecular forces that hold togcther the atoms or molecules within a solid is called.
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