Physical Science week 1-20 PDF

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The vertical columns of elements in the periodic table are calledSelect one:a. series. b. families. c. periods. d. groups.The heaviest elements are created in ___, the fantastic death of supergiant stars.Select one:a. red giantb. supernovaeTrue or False: Ionic compounds are for both metals and nonme...

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The vertical columns of elements in the periodic table are called Select one: a. series. b. families. c. periods. d. groups. The heaviest elements are created in _______, the fantastic death of supergiant stars. Select one: a. red giant b. supernovae True or False: Ionic compounds are for both metals and nonmetals. Answer: Question Correct

True

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Question text Electrons at the outermost energy level of an atom are calledAnswer Question Correct

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Question text

Valenc

.

The two types of bright nebulae are emission nebulae and _______________ nebulae. Select one: a. absorption b. photonic c. refraction d. reflection

Catalys

AAnswer

is a substance that increases the rate of a chemical reaction.

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Question text Answer

Question Correct

Activat

energy is the energy needed to start a reaction

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Question text Periodi

TheAnswer puts the elements in order of increasing atomic number, into seven horizontal rows. True or False: The alchemists have been successful in changing lead to gold. Answer: Question Correct

False

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Question text The "billiard ball model" of the atom is associated with Select one: a. Rutherford. b. Dalton. c. Bohr. d. Thomson. True or False: Melting a covalent network solid is accomplished by overcoming the relatively weak intermolecular forces. False

Answer:

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Question text Aluminum is an example of Select one: a. a solution. b. a compound. c. an element. d. an alloy. The heaviest elements are created in _______, the fantastic death of supergiant stars. Select one: a. red giant b. supernovae True or False: Diamond does not melt at all. true

Answer: True or False: If the covalent bonds are polar, then the covalent compound as a whole can be nonpolar. Answer:

false

ATOMI

TheAnswer isotopes.

of an element is the average mass of all its naturally occurring

About 75% of the mass of the visible universe is composed of which element? Select one: a. Hydrogen True or False: When a gas is compressed, its temperature decreases. False

Answer: Who discovered the electron in 1897?

Select one: a. James Chadwick b. Niels Bohr c. Ernest Rutherford d. J. J. Thomson Question Correct

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Question text The most modern definition of element is Select one: a. a substance in which all the atoms have the same number of protons. b. the simplest form of matter. c. a substance that contains no neutrons. d. a substance that cannot be further separated by chemical methods. Question Correct

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Question text Which of the following did not occur after the Big Bang? Select one: a. the universe became less dense and began to cool b. the universe was unimaginably hot and dense c. the early universe was not smoothly distributed across space d. the universe is compacted into a very small volume Question Correct

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Question text The greater the mass of a star, the _______________ it moves through its life cycle. Select one: a. faster b. Neither of these; mass has no effect on the life cycle of a star. c. slower Question Correct

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Question text Wilhelm Roentgen discovered Select one: a. X-rays. b. microwaves. c. radio waves. d. gamma rays. Question Correct

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Question text Aluminum is an example of Select one: a. an element. b. a compound. c. an alloy. d. a solution.

Question Correct

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Question text According to the Big Bang theory, when did the universe begin? Select one: a. 13.7 billion years ago

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Question text The Sun's photosphere is, by mass, about 75% Select one: a. oxygen. b. carbon. c. hydrogen. d. helium. Question 4 Correct Mark 1.00 out of 1.00

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Question text The second most abundant element in the Earth's atmosphere is Select one: a. oxygen. b. argon. c. nitrogen. d. carbon dioxide. The Sun's energy is generated from the fusion of Select one: a. hydrogen nuclei to form helium nuclei. What is the temperature in kelvins of the visible surface of the Sun? Select one: a. 600 K b. 6 million K c. 6000 K About 75% of the mass of the visible universe is composed of which element? Select one: a. Hydrogen The ancient Greek who is known for championing the concept of atom was named ______________. Select one: a. Plato b. Democritus The "plum pudding model" of the atom is associated with

Select one: a. Dalton. b. Rutherford. c. Thomson. Who discovered the electron in 1897? Select one: a. James Chadwick b. Ernest Rutherford c. Niels Bohr d. J. J. Thomson The nuclear model of the atom is associated with Select one: a. Bohr. b. Dalton. c. Rutherford. Wilhelm Roentgen discovered Select one: a. radio waves. b. X-rays. The planetary model of the atom is associated with Select one: a. Rutherford. b. Bohr. What is element 61 called? Select one: a. astatine b. technetium c. promethium ORBITA

The region where an electron is most likely to be is called anAnswer

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The nuclear model of the atom is associated with Select one: a. Dalton. b. Rutherford. c. Thomson. d. Bohr. Question Correct

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Question text The Sun is a(n) Select one: a. planet. b. galaxy. c. cluster. d. star. True or False: High-mass stars eventually evolve into white-dwarves. Answer: Question Correct

False

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Question text True or False: Melting a covalent network solid is accomplished by overcoming the relatively weak intermolecular forces. Answer: Question Correct

False

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Question text True or False: The matter in the early universe was not smoothly distributed across space. Answer:

True

The "billiard ball model" of the atom is associated with Select one: a. Bohr. b. Rutherford. c. Dalton. d. Thomson. Question Incorrect

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Question text True or False: Oxygen has two polar bonds. Answer: Question Correct

false

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Question text True or False: Molecular compounds' melting and boiling temperatures are generally low. Answer: Question Correct

True

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Question text The planetary model of the atom is associated with Select one:

a. Bohr. b. Rutherford. c. Thomson. d. Dalton. Question Correct

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Question text What is the visible surface of the Sun called? Select one: a. Glowing sphere b. Atmosphere c. Stratosphere d. Photosphere Question Correct

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Question text

He invented the neutron. Select one: a. Niels Bohr b. Ernest Rutherford c. J.J. Thomson d. James Chadwick

1. Also known as the revolution of the Earth around the sun Answer: ANNUAL MOTION 2. Ancient constellations related to Earth’s annual motion Answer: ZODIAC 3. Center in Ptolemaic system of the universe Answer: EARTH 4. Center of the universe in the Copernican system Answer: SUN 5. Earth’s movement that results to the observation of diurnal motion Answer: ROTATION 6. Event when the sun crosses the Celestial Equator Answer: EQUINOX 7. Line on Earth that is parallel to apparent daily paths Answer: CELESTIAL EQUATOR 8. Main factor in the precession of equinoxes Answer: GRAVITY 9. More common term for the annual motion of the Earth Answer: REVOLUTION 10. Type of observable motion associated with heavenly bodies Answer: DIURNAL MOTION 1.Slow and continuous change in the orientation of an astronomical body’s rotational axis

Answer: Axial precession 2.Periodic observable motion that results from the Earth’s motion on its axis Answer: diurnal motion 3.Center of the universe in Ptolemy’s model Answer: Earth 4.Motion of the Earth around the sun Answer: revolution 5.Motion of the Earth responsible for diurnal motion Answer: rotation 1. Identify the center in the universe model Copernicus. Answer: SUN 2. Identify the date of the year when the Earth is at its closest from the Sun. Answer: PERIHELION 3. Identify the main factor in the precession of equinoxes. Answer: GRAVITY 4. Identify the shape of the planetary orbit based on Kepler’s third law. Answer: ELLIPSE 5. Identify the universe’s center in Ptolemy’s model. Answer: EARTH 6. Name the line on Earth that is parallel to apparent daily paths. Answer: CELESTIAL EQUATOR 7. Name the star blamed by the Greeks for the intensity of their summer Answer: SIRIUS 8. This ancient device aligns with the North Star and is used to determine the precise time of its user’s location. Answer: ASTROLABE 9. This model is the combination of two ancient models of the universe. Answer: TYCHONIC

10. This model of the universe considered the ideas of the Earth- and Sun-centered universe models. Anwer: TYCHONIC 11. This motion is also called the revolution of the Earth around the sun. Answer: ANNUAL MOTION 12. This structure was developed by the Mayans as they observed Venus. Answer: CARACOL 13. What do you call Earth’s movement that results to the observation of diurnal motion? Answer: ROTATION 14. What do you call the ancient constellations that are related to Earth’s annual motion? Answer: ZODIAC 15. What do you call the event when the sun crosses the Celestial Equator? Answer: EQUINOX 16. What do you call the motion of the Earth that is responsible for diurnal motion? Answer: ROTATION 17. What is the center in Ptolemaic system of the universe? Answer: EARTH 18. What is the center of the universe based on the model by Ptolemy? Answer: EARTH 19. What is the center of the universe in the Copernican system? Answer: SUN 20. What is the constant quantity in the universe model by Kepler? Answer: AREA SPEED 21. What is the more common term for the annual motion of the Earth with respect to the sun? Answer: REVOLUTION 22. What is the oldest heavenly body that has been observed and has preceded great events in history? Answer: HALLEY’S COMET 23. What is the periodic observable motion that is the result of the Earth’s movement on its axis? Answer: DIURNAL MOTION

24. What is the term that refers to the motion of the Earth around the sun? Answer: REVOLUTION 25. What is the term that refers to the slow and continuous change in the orientation of an astronomical body’s rotational axis? Answer: AXIAL PRECESSION 26. What is the universe model that is said to be Suncentered? Answer: COPERNICAN 27. What is this type of observable motion that is associated with heavenly bodies? Answer: DIURNAL MOTION 28. What property of a planet has this property directly proportional to the cube of the semi-major axis of its orbit? Answer: ORBITAL PERIOD 29. Where is the Sun located with respect to a planet’s elliptical orbit Answer: FOCAL POINT 30. Which model of the universe is said to be Earthcentered? Answer: PTOLEMAIC 1. Aligns with the North Star to determine precise time for user’s location Answer: ASTROLABE 2. Combination of two ancient models of the universe Answer: TYCHONIC 3. Developed by the Mayans for the observation of Venus Answer: CARACOL 4. Earth-centered system of the universe Answer: PTOLEMAIC 5. Sun-centered system of the universe Answer: COPERNICAN 1. Center in the model of the universe proposed by Copernicus Answer: SUN 2. Center of the universe based on the model proposed by Ptolemy Answer: EARTH

3. Considered the ideas of the Earth- and Sun-centered universe model Answer: TYCHONIC 4. Constant quantity in the universe model by Kepler Answer: AREA SPEED 5. Date of the year when the Earth is closest to the Sun Answer: PERIHELION 6. Location of the Sun with respect to the elliptical orbit based on Kepler’s laws Answer: FOCAL POINT 7. Oldest heavenly body observed that has preceded great events in history Answer: HALLEY’S COMET 8. Planet property whose square is directly proportional to the cube of the semi-major axis of its orbit Answer: ORBITAL PERIOD 9. Shape of the orbit based on Kepler’s third law Answer: ELLIPSE 10. Star blamed by Greeks for the intensity of summer Answer: SIRIUS 1. Constant in the motion of a falling body in vacuum Answer: ACCELERATION 2. Description of the change in the rate of movement of a body Answer: ACCELERATION 3. Indirect force resulting from the application of a force Answer: REACTION 4. Necessary component of motion according to Aristotle Answer: FORCE 5. Property of a body that affects its state of motion Answer: INERTIA 1.Aside from changing the state of motion of a body, this is also an effect of applying an unbalanced force to the body. Answer: ACCELERATION 2.Which can be easily affected by an unbalanced force: one cube of ice or one sack of rice?

Answer: ONE SACK OF RICE 3.This law implies the importance of balanced forces and what unbalanced forces are. Answer: LAW OF INTERACTION 4.Which will accelerate more when the same unbalanced force is applied: pencil or cabinet? Answer: CABINET 5.This law of motion relates the rate of change in the movement of a body and the unbalanced force that it experiences. Answer: LAW OF ACCELERATION 6.Which law of motion states that a body will not change its current state of motion unless an unbalanced force acts upon it? Answer: LAW OF INERTIA 7.If you push the wall with an amount of force, you supply the action force. What is the source of the reaction force? Answer: WALL 8.What factor of a body that is at rest prevents it from moving? Answer: INERTIA 9.What is the only factor that is constant for bodies falling in a vacuum? Answer: ACCELERATION 10.Which of these has a greater inertia: fly or cat? Answer: cats 1. Constant in a body as long as no net force acts upon it Answer: VELOCITY 2. Decreases as acceleration increases in Newton’s law of acceleration

Answer: MASS 3. Force involved in Newton’s Law of Universal Gravitation Answer: GRAVITATIONAL FORCE 4. Statement based on repeated experimental observations Answer: LAW 5. Statement taken to be true since what it proposes is already evident Answer: AXIOM

1. According to Galileo, this quantity is not needed to keep a body in motion under ideal conditions. Answer: FORCE 2. Describe the total amount of energy of a body before it falls from a height and as it hits the ground. Answer: EQUAL 3. In the law of acceleration, which quantity decreases as the acceleration decreases? Answer: FORCE 4. This is also known as the “inertia in motion” of a body. Answer: MOMENTUM 5. This kind of statement is considered true since it has been based on a series of observations. Answer: LAW 6. What do you call a statement that is taken as true without scientific evidence? Answer: AXIOM 7. What happens to energy as it is used up by different systems? Answer: TRANSFORMED 8. What happens to the magnitude of the gravitational force as the bodies become more massive? Answer: INCREASES 9. What happens to the magnitude of the gravitational force as the distance between two bodies increase? Answer: DECREASES 10. What term do you use to refer to the amount of material contained by a body? Answer: MASS

1. Consider the formula for momentum. What quantity increases with the velocity of a body?: Momentum; Velocity; Inelastic; Force; Mass; Elastic; Energy Answer: Momentum 2. If a body has no momentum, what else does it not have?: Elastic; Inelastic; Force; Momentum; Mass; Velocity; Energy Answer: Velocity 3. In the formula for momentum, this quantity decreases as the body moves slower.: Elastic; Mass; Energy; Momentum; Force; Velocity; Inelastic Answer: Mass 4. In this type of collision, this factor is not necessarily conserved.: Energy; Elastic; Velocity; Force; Inelastic; Mass; Momentum Answer: Energy 5. This quantity describes how difficult it is to stop a moving body.: Inelastic; Velocity; Momentum; Force; Energy; Mass; Elastic Answer: Momentum 6. This quantity enables bodies to move so that they would collide.: Mass; Energy; Elastic; Force; Velocity; Inelastic; Momentum Answer: Energy 7. What SI quantity is directly related and directly proportional to the mass of a body?: Inelastic; Momentum; Velocity; Elastic; Energy; Force; Mass Answer: Momentum 8. What type of collision is involved between two bodies that show a spark of light after colliding: Momentum; Force; Inelastic; Mass; Elastic; Energy; Velocity Answer: Inelastic 9. Which type of collision involves the constant sum of total kinetic energy before and after the collision?: Momentum; Velocity; Mass; Elastic; Force; Energy; Inelastic Answer: Elastic 10. Which will stop first when these two bodies collide: truck or bicycle? Answer: BICYCLE

1. Collision that involves the conversion of energy into other forms outside the colliding bodies Answer: INELASTIC 2. Factor responsible for the movement of the bodies that are about to collide Answer: ENERGY 3. Not necessarily conserved between colliding bodies Answer: ENERGY 4. Quantity conserved in any collision Answer: MOMENTUM 5. Type of collision wherein the total kinetic energy is constant before and after the collision Answer: ELASTIC 1. Consider the wave equation. Which quantity increases with the frequency of the wave?: Absorption; Latitudinal; Index of Refraction; Longitudinal; Wavelength; Refraction; Electron; Photon; Transverse; Energy; Mirror; Speed; Dispersion Answer: Speed 2. In light, this is what the photons carry enabling them to move.: Wavelength; Energy; Mirror; Photon; Longitudinal; Dispersion; Electron; Speed; Transverse; Index of Refraction; Absorption; Refraction; Latitudinal Answer: Energy 3. In the wave equation, this quantity is inversely proportional to the frequency of the wave.: Absorption; Mirror; Electron; Latitudinal; Longitudinal; Energy; Speed; Photon; Refraction; Index of Refraction; Dispersion; Wavelength; Transverse Answer: Wavelength 4. Name the component of light that travels in straight lines.: Index of Refraction; Longitudinal; Transverse; Absorption; Latitudinal; Energy; Electron; Refraction; Mirror; Photon; Dispersion; Wavelength; Speed Answer: Photon 5. This constant determines how much light will bend as it enters a different medium.: Electron; Refraction; Photon; Latitudinal; Mirror; Speed; Index of Refraction;

Transverse; Absorption; Longitudinal; Dispersion; Wavelength; Energy Answer: Index of Refraction 6. This phenomenon of light is the evidence of the energy possessed by light.: Absorption; Photon; Energy; Dispersion; Electron; Mirror; Speed; Longitudinal; Transverse; Wavelength; Latitudinal; Index of Refraction; Refraction Answer: Absorption 7. This wave is produced by the disturbance of the molecules nearby its source.: Latitudinal; Absorption; Mirror; Photon; Wavelength; Index of Refraction; El...