# Shared Flashcard Set

## Details

Physical Science
Chapters 1-3
80
Science
09/13/2011

Term
 Most important Physical Science
Definition
 Physics
Term
 What are the 5 Physicial Sciences
Definition
 1. Physicis, 2. Astronmeny, 3. Chemistry,  4. Metrology 5. Geology
Term
 What are the most important Senses?
Definition
 Sight and Hearing
Term
 Physics deals with?
Definition
 Mater, Motion, Force, Energy.
Term
 What are the two measurement systems?
Definition
 British System and Metric System
Term
 Is the amount of Matter a object contains is?
Definition
 Mass
Term
 Length
Definition
 The measurement of Matter of  Space in any direction. Measured in Meters (m).
Term
 The continous, forward flowing of events. Standard in English and Metric Systems.
Definition
 Time Units are Seconds (s)
Term
 Earth vs Moon Weight
Definition
 An Object 1 pound on Earth is 1/6th that weight on the Moon.
Term
 What is Density
Definition
 Mass per unit of Volume Typical Units is g/cm3 or grams per centimeter cubed
Term
 What is the Units of Newtons
Definition
 Kg m/s2
Term
 What is the Unit of Joule (j)
Definition
 Kg m2/s2
Term
 What is the unit of watt (w)
Definition
 Kg m2/s2
Term
 What is the Distance to the Sun?
Definition
 93,000,000 miles or 93x106 Prefered 9.3x107
Term
 What is the radius of the Earth
Definition
 4000 Miles
Term
 Accerlation
Definition
 the time rate of change in velocity
Term
 Freefall
Definition
 Falling under the influence of gravity w/o air resistance.
Term
 Newton's 1st Law
Definition
 An object will remain at rest or in uniform motion in a straight line, unless acted upon by an external, unbalanced force.
Term
 Inertia
Definition
 The Natural tendency of an object to remain in a state of rest or uniform motion in a straight line.
Term
 A generalized mental image of an object is a (an)
Definition
 concept.
Term
 Which of the following is the best example of the use of a  referent?
Definition
 Big as a dump truck
Term
 -defined and agreed-upon referent used as a standi all systems of measurement is called a .
Definition
 unit.
Term
 The system of measurement based on referents in nature but not with respect to human body parts, is the
Definition
 metric system.
Term
 A process of comparing a property to a well-defined and agreed-upon referent is called a
Definition
 measurement.
Term
 One of the following is not considered to be a fundamental property   a. weight.   b. length.   c. time.   d. charge.
Definition
 weight
Term
 How much space something occupies is described by its   a. mass.   b. volume.   c. density.   d. weight.
Definition
 volume.
Term
 27. Statements describing how nature is observed to behave consistently time after time are called scientific   a. theories.   b. laws.   c. models.   d. hypotheses.
Definition
 Laws
Term
 28. A controlled experiment comparing two situations has all identical influencing factors except the a. experimental variable. b. control variable. c. inverse variable. d. direct variable.
Definition
 experimental varible
Term
 29. In general, scientific investigations have which activities in common?  a. State problem, gather data, make hypothesis, test, make  conclusion.  b. Collect observations, develop explanations, test explanations.  c. Observe nature, reason an explanation for what is observed.  d. Observe nature, collect data, modify data to fit scientific  model.
Definition
 Collect observations, develop explanations, test explanations.
Term
 30. Quantities, or measured properties, that are capable of changing values are called  a. data.  b. variables.  c. proportionality constants.  d. dimensionless constants.
Definition
 variables
Term
 31. A proportional relationship that is represented by the symbols a ex 1b represents which of the following relationships? a. direct proportion b. inverse proportion c. direct square proportion d. inverse square proportion
Definition
 inverse proportion
Term
 32. A hypothesis concerned with a specific phenomenon is found to be acceptable  through experiments  over a long time. This hypothesis usually becomes known as a a. scientitc law. b. scientific principle. c. theory. d. model.
Definition
 scientitc law.
Term
 33.A scientific law can be expressed as a. a written concept b. an equation c.a graph d all of the above
Definition
 All of the above
Term
 35. Which of the following symbols represents a measured property of the compactness of matter?a. mb. Ρc. Vd. Δ
Definition
 Ρ
Term
 36. A candle with a certain weight melts in an oven, and the resulting weight of the wax isa. less.b. the same.c. greater.d. The answer varies.
Definition
 the same.
Term
 37. An ice cube with a certain volume melts, and the resulting volume of water is a. less. b. the same. c. greater. d. The answer varies.
Definition
 less.
Term
 39. A beverage glass is filled to the brim with ice-cold water (O°C) and ice cubes. Some of the ice cubes are floating above the water level. When the ice melts, the water in the glass will a. spill over the brim. b. stay at the same level.  c. be less full than before the ice melted.
Definition
 Stay at the same level
Term
 40. What is the proportional relationship between the volume of in a cup and the time the juice dispenser has been running? a. direct b. inverse c. square d. inverse square
Definition
 direct
Term
 41. What is the proportional relationship between the number of cookies in the jar and the time you have been  eating the cookies? a. direct b. inverse c. square d. inverse square
Definition
 inverse
Term
 42. A movie projector makes a 1m by 1 m image when projecting 1 m from a screen, a 2 m by 2m image when 2 m from the screen, and a 3 m by 3 m image when 3 m from the screen. What is the proportional relationship between the distance from the screen and the area of the image? a. direct b. inverse c. Square d. inverse square
Definition
 Square
Term
 43. A movie projector makes a 1m by 1 m image when projecting 1 m from a screen, a 2 m by 2 m image when projecting 2 mfrom the screen, and 3 m 3 m image when projecting 3 m from the screen. What is the proportional relationship betweenthe distance from the screen and the intenSity of the light fallingon the screen?a. directb. inversec. squared. inverse square
Definition
 inverse square
Term
 44. According to the scientit1c method, what needs to be done to move beyond conjecture or simple hypotheses in a persons understanding of his or her physical surroundings?a. Make an educated guess.b. Conduct a controlled experiment.c. Find an understood model with answers.d. Search for answers on the Internet.
Definition
 Conduct a controlled experiment.
Term
 1-1. A generalized mental image of an object is a (an)a. definition.b. impression.c. concept.d. mental picture.
Definition
 concept
Term
 1-2. Which of the following is the best example of the use of a referenta. A red bicycle .b. Big as a dump truckC. The planet Marsd. Your texlbook
Definition
 Big as a dump truck
Term
 1-3. A well-defined and agreed-upon referent used as a standard in all systems of measurement is called a .a. yardstick.b. unit.c. quantity.d. fundamental.
Definition
 unit.
Term
 1-4. The system of measurement based on referents in nature, but not with respect to human body parts, is thea. natural system.b. English system.c. metric system.d. American system.
Definition
 metric system.
Term
 1-5. A process of comparing a property to a well-defined and agreed-upon referent is called aa. measurement.b. rererral.c. magnitude.d. comparison.
Definition
 measurement.
Term
 1-6. One of the following is not considered to be a fundamenl property:a. weight.b. length.c. time.d. charge.
Definition
 weight.
Term
 7. How much space something occupies is described by itsa. massb. volume.c. density.d. weight
Definition
 volume.
Term
 8. The relationship between two numbers that is usually obtained by dividing one number by the other is called a (an)a. ratio.b. divided size.c. number tree.d. equation.
Definition
 ratio
Term
 1-9 The ratio of mass per volume of a substance is called a. weight b. divided size c. number tree d. equation
Definition
 equation
Term
 1-10. After identifying the appropriate equation, the next step in correctly solving a problem is to a. substitute known quantities for symbols.b. solve the equation for the variable in question.c. separate the number and units.d. convert all quantities to metric units.
Definition
 solve the equation for the variable in question.
Term
 1-11. Suppose a problem situation describes a speed in km/h and a length in m. What conversion should you do before substitutingquantities for symbols? Converta. km/h to km/s.b. m tokm.c. km/h to m/s.d. In this situation, no conversions should be made.
Definition
 km/h to m/s.
Term
 12. An equation describes a relationship wherea. the numbers and units on both sides are proportional but not equalb. the numbers on both sides are equal but not the units.c. the units on both sides are equal but not the numbers.d. the numbers and units on both sides are equal
Definition
 the numbers and units on both sides are equal
Term
 2-1. A stright-line distance covered during a certain amount of time describes and object's a. speed b. Velocity c. acceleration d. any of the above
Definition
 Speed
Term
 2-2 How fast an object is amoving in a particular direction is described by. a. speed b. velocity c. acceleration d. none of the above.
Definition
 Velocity
Term
 2-3 Acceleraton occurs when an object undergoes a. a speed increase b. a speed decrease c. acceleration d. any of the above
Definition
 any of the above
Term
 2-4. A. car moving at 60 km/h comes to stop in 10 s when the driver slams on the breaks. In this situation, what does 60 km/h represent? a. Average speed b. Final Speed c. Initial speed d. Constant speed
Definition
 Initial Speed
Term
 2-7. In free fall, an object is seen to have a (an) a. constant velocity b. constant acceleration c. increasing acceleration d. decreasing acceleration
Definition
 constant acceleration
Term
 2-8. A tennis ball is hit, causing it to move upward form the racket at some angle to the horizon before it curves back to the surface in the path of a parabola. While it moves along this path. a. the horizontal speed remains the same b. The vertical speed remains the same c. both the horizontal and vertical speeds remain the same. d. both the horizontal and vertical speeds change.
Definition
 the horizontal speed remains the same
Term
 2-9 A quanity of 5 m/s2  is a measurment of a. metric area b. accerlation c. speed d velocityds
Definition
 accerlation
Term
 2-10. An automobile has how many different divices that can cause it to undergo acceleration? a. None b. One c. Two d. Three or more
Definition
 Three or more
Term
 2-20. You are standing freely on a motionless suttle bus. When the shuttel bus quickly begins to move forward, you a. are moved to the back of the shuttel bus as you move forward over the surface of the Earth b. Stay in one place over he surface over the surface of the earth as the shuttle bus move form under you c. mover along with the shuttle bus. d. feel a froce toward the dide of the shuttle bus
Definition
 Stay in one place over he surface over the surface of the earthas the shuttle bus move form under you
Term
 2-21.  Mass is measured in kilograms which is a measure of a. weight b. force c. inertia d. quanity of matter
Definition
 force
Term
 2-22. Which metric unit is used to express a measur of weight a. kg b. J c. N d. n/s2
Definition
 N- Newton
Term
 2-24. If you double the unbalanced force on an object of given mass. the acceleration will be. a. doubled b. increased fourfold c. increased by one-half d. increased by one-fourth
Definition
 doubled
Term
 2-25. If you double the mass of a cart while it is undergoing a constrant unbalanced force, the acceleration will be. a. doubled b. increase fourfold c. one-half as much d. Four tiems as much.
Definition
 one-half as much
Term
 2-27. If a ball swing in acircle on a string moved twice as fast, the force on the string will be a. twice as great b. four times as great c. one-half as much d. One -fourth as much
Definition
 four times as great
Term
 2-28. A ball is swing in circle on a string when teh string length is doubled.  At the same velocity, the force on the string will be a. twice as great b. four times as great c. one-half as much d. one-fourth as much
Definition
 one-half as much
Term
 2-37. You are moving a grocery cart at a constant speed in a stright line dow the aisle of a store. For this situation , the forces on the cart are. a. unbalanced, in the direction of the movement b. balanced, with a net forct of zero. c. equal to the force of gravity acitn on the cart. d. grater than the frictional force s opposing the notion of the cart.
Definition
 greater than the frictional force s opposing the notion of the cart.
Term
 2-39. Neglecting air resistance, ball in free fall near Earth's surface will have a. constant speed and constant acceleration b. increasing speed and increasing acceleration c. increasing speed and decreasing acceleration d. increasing speed and constant acceleration
Definition
 increasing speed and constant acceleration
Term
 2-41. After being released, a ball thrown stright up from a bridge will have an acceleration of a. 9.8 m/s2 b. zero c. less than 9.8m/s2 d. more than 9.8 m/s2
Definition
 9.8 m/s2
Term
 2-44. A small sports can and a SUV collide head on and stick together without sliding. Which vehicle had the larger monentum change. a The small sports car. b. the large SUV c. It would be equal
Definition
 It would be equal
Term
 2-45.  Again consider the small sports carand the large SUV that collided head on and stuck together with outh sliding, Which vehicle must have experience the larger deceleration durint the collision? a. The Small sports car b. the large SUV c. It would be equal for both
Definition
 The Small sports car
Term
 2-46. An orbiting satelite is moved form 10,000 to 30,000 km for Earth. this will result ia what change in the gravitiational attration between Earth and the satelite. a. None-the attraction is the seme b. One-half as much c. One-fourth as much d. One-ninth as much
Definition
 One-ninth as much
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