1. Physicis,

2. Astronmeny,

3. Chemistry, 

4. Metrology

5. Geology

The measurement of Matter of  Space in any direction.

Measured in Meters (m).

The continous, forward flowing of events.

Standard in English and Metric Systems.

Time

Units are Seconds (s)

Mass per unit of Volume

Typical Units is g/cm³

or grams per centimeter cubed

93,000,000 miles

or 93x10⁶

Prefered 9.3x10⁷

the time rate of change in velocity

A generalized mental image of an object is a (an)

concept.

Which of the following is the best example of the use of a  referent?

Big as a dump truck

-defined and agreed-upon referent used as a standi all systems of measurement is called a .

unit.

The system of measurement based on referents in nature but not with respect to human body parts, is the

metric system.

A process of comparing a property to a well-defined and agreed-upon referent is called a

measurement.

One of the following is not considered to be a fundamental property

a. weight.

b. length.

c. time.

d. charge.

weight

How much space something occupies is described by its

a. mass.

b. volume.

c. density.

d. weight.

27. Statements describing how nature is observed to behave

consistently time after time are called scientific

a. theories.

b. laws.

c. models.

d. hypotheses.

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.

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.

Collect observations, develop explanations, test explanations.

30. Quantities, or measured properties, that are capable of changing values are called

 a. data.

 b. variables.

 c. proportionality constants.

 d. dimensionless constants.

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

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.

33.A scientific law can be expressed as

a. a written concept

b. an equation

c.a graph

d all of the above

35. Which of the following symbols represents a measured property of the compactness of matter?
a. m
b. Ρ
c. V
d. Δ

36. A candle with a certain weight melts in an oven, and the resulting weight of the wax is
a. less.
b. the same.
c. greater.
d. The answer varies.

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.

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.

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

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

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

Square

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 m
from the screen, and 3 m 3 m image when projecting 3 m from the screen. What is the proportional relationship between
the distance from the screen and the intenSity of the light falling
on the screen?
a. direct
b. inverse
c. square
d. inverse square

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.

1-1. A generalized mental image of an object is a (an)
a. definition.
b. impression.
c. concept.
d. mental picture.

1-2. Which of the following is the best example of the use of a referent
a. A red bicycle .
b. Big as a dump truck
C. The planet Mars
d. Your texlbook

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.

1-4. The system of measurement based on referents in nature, but not with respect to human body parts, is the
a. natural system.
b. English system.
c. metric system.
d. American system.

1-5. A process of comparing a property to a well-defined and agreed-upon referent is called a
a. measurement.
b. rererral.
c. magnitude.
d. comparison.

1-6. One of the following is not considered to be a fundamenl property:
a. weight.
b. length.
c. time.
d. charge.

7. How much space something occupies is described by its
a. mass
b. volume.
c. density.
d. weight

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.

1-9 The ratio of mass per volume of a substance is called

a. weight

b. divided size

c. number tree

d. equation

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.

1-11. Suppose a problem situation describes a speed in km/h and a length in m. What conversion should you do before substituting
quantities for symbols? Convert
a. km/h to km/s.
b. m tokm.
c. km/h to m/s.
d. In this situation, no conversions should be made.

12. An equation describes a relationship where
a. the numbers and units on both sides are proportional but not equal
b. 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

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

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.

2-3 Acceleraton occurs when an object undergoes

a. a speed increase

b. a speed decrease

c. acceleration

d. any of the above

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

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

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.

2-9 A quanity of 5 m/^s2  is a measurment of

a. metric area

b. accerlation

c. speed

d velocityds

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

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

2-21.  Mass is measured in kilograms which is a measure of

a. weight

b. force

c. inertia

d. quanity of matter

2-22. Which metric unit is used to express a measur of weight

a. kg

b. J

c. N

d. n/s²

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

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.

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

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

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.

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

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

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

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

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