Reviewer In Physical Science.docx

REVIEWER IN PHYSICAL SCIENCE 1. Which of the following pairs may not be added together, even after the appropriate unit conversion has been made? a. mile and ton b. inch and light year c. grams and centigram d. microsecond and century 2. The astronomer, Tycho Brahe was known for his a. use of telescope b. theory of epicycles c. measurement of the Earth’s rotation d. accurate observation of planets position 3. In the geocentric concept of the universe, which direction does the celestial sphere appear to rotate about the stationary earth? In the heliocentric universe, which direction does the earth rotate a. geocentric: east to west; heliocentric: west to east b. geocentric: west to east; heliocentric: west to east c. geocentric: west to east; heliocentric: east to west d. geocentric: east to west; heliocentric: east to west 4. In ancient times, how did people tell the difference between planet and stars a. that planets move relatively to the star b. that planets look bigger c. that planet showed phases d. that planet did not twinkle 5. Ptolemy and Copernicus both believed, that a. that the sun went around the earth b. that the earth went around the sun c. that uniform circular motion explain planetary motion d. Mars would looked faintest when at opposition 6. The discovery that planets move in elliptical orbits with the sun at the focus was made by a. Halley b. Neil Bohr c. Johannes Kepler d. Tycho Brahe

7. According to Kepler’s first Law, the planets each move in an elliptical orbit with the sun a. at one focus b. at both foci c. at geometric center d. on the opposite side of the same ellipse 8. The Copernican Theory of the solar system allowed for the first time the measurement of a. distance of the sun b. the mass of the earth c. the relative masses of the planet d. the relative distance of the planet 9. The period of time that planet takes to make one complete revolution around the sun is most dependent on the planets average a. mass b. distance from the sun c. rotation rate d. insolation from the sun 10. Greek believed that rocks rightful place is a. on the orbit of the earth b. close to the center of the universe. c. outer spherical layer of the universe. d. besides the center of the universe. 11. The idea that the earth moves in orbit around the sun, earth be stationary at the center of the thing was credited to a. Copernicus b. Johannes Kepler c. Newton d. Ptolemy 12. In the Copernican theory day and night are accounted by the a. rotation of the earth b. rotation of the celestial sphere c. revolution of the sun around the earth d. revolution of the earth around the sun 13. The first person to device a model that could explain the retrograde motion of the planets in the sky a. Plato b. Eudoxus c. Aristarchus d. Erathosthenes

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14. The daily motion of the stars and other celestial bodies across the sky a. annual b. diurnal c. terrestial motion d. Retograde motion 15. A model of the solar system which combined Copernican Systemwith Ptolimic a. Tyconic b. Galileo c. Tychonic system d. copernican system 16. The fundamental quantity common to both kinetic energy and momentum is a. time b. speed c. mass d. velocity 17. Ball A is thrown horizontally and ball B is dropped vertically from the same height at the same moment. Which of the following is TRUE? a. Ball A reaches the ground first b. Ball B reaches the ground first c. Ball A has the greater speed when it reaches the ground d. Ball B has the greater speed when it reaches the ground 18. Vector A is 10 units 30o N of E while vector B is 20 unit 60o S of E. what is the magnitude of the resultant of A and B? a. 29 units b. 26 units c. 22 units d. 17 units 19.Which is true about motion? a. force is needed to produce motion b. force must be greater or equal to the resistance c. if force is less than the resistance, no motion will occur d. all of them 20.The movement of things they belong a. Normal motion b. Natural motion c. Forced motion d. Locomotion 21.The net forced exerted by the Earth on the object a. Frictional force b. Normal force c. Gravitational force

d. weight 22.Displacement is a _______ quantity. a. base b. derived c. Scalar d. vector 23.Adding of two vectors to get a single vector is termed as _____ vector. a. dominant b. resultant c. final d. derived 24.Which of the following is a measure of velocity? a. 39s b. 35 m/s c. 30km. south d. 45 m/s east 25.What is the speed of a sailboat travelling 500m in 140 s? a. 0.28 m/s b. 3.57 m/s c. 3.40 m/s d. 70,000 m/s 26.How long would it take to travel 50 km at a speed of 10 km/hr? a. 1 hr b. 3 hrs c. 5 hrs d. 50 hrs 27.The fifth element postulated by Aristotle a. earth b. water c. fire d. quintessence 28.The daily eastward drift of the earth is a. Exactly 1 degree b. Greater than 1 degrees c. Less than 1 degree d. Exactly 360 degree 29.Which situation is an example of a free falling body? a. A cannon ball b. A car travelling from Baclaran to Makati c. Dropping a ball from a three- storey building d. A helicopter dropped a package of food to the flood victim 30.It deals with a quantitative description of motion Rmmlsnrvr’19

a. dynamics b. speed c. kinematics d. velocity 31.______ describes how fast something is moving, whereas _______ describes how fast something is going in a certain direction. a. velocity: speed b. speed: velocity c. rate: speed d. velocity: acceleration 32.Speed of a body in particular direction can be called as ______. a. velocity b. speed c. Rate d. acceleration 33. If a person walked at 3 m/s for 12 s, he/she travel a distance of ______ . a. 6 m b. 24 m c. 36 m d. 36 m/s 34. How far would you travel moving at 12m/s for 2.0 minutes? . a. 6 m b. 24 m c. 1,440 m d. 2,160 m 35. The SI unit for speed is ______ . a. m/s b. cm/min c. in/hr d. km/min

Answer : 7.5m 1.33 m/s 0.02s 30m 0.02 m/s II.identification:

ARISTARCHUS-1. The famous ancient astronomer and mathematician born in Samos first to say that the sun, and not the Earth, was the center of universe. EUDOXUS-2. He created the first model of a geocentric universe around 380 BC. JOHANNES KEPLER-3. First to calculate the circumference of the sun. DIURNAL-4. Daily motion of stars and other celestial body. ANNUAL-5. Apparent yearly motion of stars as observed from earth revolution. EQUINOXES-6.Westward motion along ecliptic relative to the fixed stars wherein the length of daytime is almost equal to the length of the night time. EUDOXUS7.the first person to devise a model that could explain the retrogate motion of the planets in the sky. HELIOCENTRIC 8.the motion of the earth in its orbit around the sun. CELESTIAL MOTION9.the motion of the celestial bodies or objects in outer space. GEOCENTRIC MODEL10. Earth-centered model of the universe. VECTOR11. a quantity that needs both magnitude and direction.. SCALAR12.A quantity that can be completely described by a magnitude only, that is simply numerical value and a unit. DISPLACEMENT13. A change from initial to final position. MOTION 14.it refers to a change in position of a body with respect to a reference point. DISTANCE15. it is a scalar quantity which refers to how much ground an object has covered during its motion.

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