Physics

Front 1

The science that examines fundamental laws relating matter and energy

Back 1

Physics

Front 2

The first scientist to base conclusions on experimental evidence

Back 2

Galileo

Front 3

Mass,____,and time are considered fundamental quantites

Back 3

length

Front 4

In SI, the fundamental unit of mass is the _____

Back 4

kilogram

Front 5

The ____ of an object is the quantity of matter it contains

Back 5

mass

Front 6

The units of speed and volume are examples of _____ units

Back 6

derived

Front 7

An error due to ____ is possible if a meter scale is not read from directly in front

Back 7

parallax

Front 8

When using scientific notation, it is customary to have ____ digit(s) to the left of the decimal point

Back 8

one

Front 9

In using scientific notation, measurements can be added or subtracted only if the exponents are _____

Back 9

equal

Front 10

____ is the extent to which a measured value agrees with the accepted value for a quantity

Back 10

accuracy

Front 11

The___ of a measuring device is limited by the finest division on its scale

Back 11

Precision

Front 12

The figures written for a measurement are called ___ digits

Back 12

significant

Front 13

A(n)___ that serves only to locate a decimal point is not significant

Back 13

zero

Front 14

The result of a mathematical operation on measured quantities cannot be more precise than the___ precise of the quantities involved

Back 14

least

Front 15

In the metric system,___ are used to change the value of standard units by powers of ten

Back 15

prefixes

Front 16

It is customary to isolate the___ on the left side of an equation

Back 16

variable

Front 17

in performing an experiment, the values of the___ variable are carefully changed and the corresponding values of the___ variable are then measured

Back 17

dependent,independent

Front 18

In graphing, the values for the___ variable usually are plotted on the horizontal (x) axis

Back 18

independent

Front 19

The graph of a(n)___ variation is a straight line passing through the origin

Back 19

direct

Front 20

The shape of the graph in which shows the dependent variable in inverse variation with the independent variable is a(n)___

Back 20

hyperbola

Front 21

A graph whose shape is a(n)___indicates that the dependent variable varies as the square of the independent variable

Back 21

parabolic

Front 22

When one quantity varies directly with another, the second quantity will___ as the first increases

Back 22

increase

Front 23

When one quantity varies inversely with another, the second quantity will___ as the first increases

Back 23

decrease

Front 24

The general equation for a graph which is a straight line passing through the origin is___

Back 24

y=mx+b

Front 25

The general equation of a parabola is___

Back 25

y=kx(2)

Front 26

The___ of a measuring device is limited by the finest division on its scale

Back 26

Precision

Front 27

The figures written for a measurement are called ___ digits

Back 27

significant

Front 28

A(n)___ that serves only to locate a decimal point is not significant

Back 28

zero

Front 29

The result of a mathematical operation on measured quantities cannot be more precise than the___ precise of the quantities involved

Back 29

least

Front 30

In the metric system,___ are used to change the value of standard units by powers of ten

Back 30

prefixes

Front 31

It is customary to isolate the___ on the left side of an equation

Back 31

variable

Front 32

in performing an experiment, the values of the___ variable are carefully changed and the corresponding values of the___ variable are then measured

Back 32

dependent,independent

Front 33

In graphing, the values for the___ variable usually are plotted on the horizontal (x) axis

Back 33

independent

Front 34

The graph of a(n)___ variation is a straight line passing through the origin

Back 34

direct

Front 35

The shape of the graph in which shows the dependent variable in inverse variation with the independent variable is a(n)___

Back 35

hyperbola

Front 36

A graph whose shape is a(n)___indicates that the dependent variable varies as the square of the independent variable

Back 36

parabolic

Front 37

When one quantity varies directly with another, the second quantity will___ as the first increases

Back 37

increase

Front 38

When one quantity varies inversely with another, the second quantity will___ as the first increases

Back 38

decrease

Front 39

The general equation for a graph which is a straight line passing through the origin is___

Back 39

y=mx+b

Front 40

The general equation of a parabola is___

Back 40

y=kx^2

Front 41

The general equation of a hyperbola is___

Back 41

y=k/x

Front 42

The___ of an angle in right triangle equals the opposite side divided by adjacent side

Back 42

tangent

Front 43

A(n)___ quantity is completely described by its magnitude

Back 43

scalar

Front 44

A(n)___ quantity has both magnitude and direction

Back 44

vector

Front 45

Velocity and displacement are examples of___ quantities

Back 45

vector

Front 46

The sum of two vector quantities is determined by their___ and magnitudes

Back 46

direction

Front 47

Speed represents the magnitude of ___

Back 47

velocity

Front 48

The rate of change of velocity is called___

Back 48

acceleration

Front 49

A car travels 750 kilometers in 10 hours. The ___ speed of this car is 75 kilometers per hour

Back 49

average

Front 50

The___ velocity of an object in motion is its velocity at any given instant of time

Back 50

instantaneous

Front 51

___can be computed by dividing an object's change in velocity by the time necessary to make that change

Back 51

average acceleration

Front 52

The SI unit for acceleration is___

Back 52

m/s^2

Front 53

An object that is slowing down is said to have a(n)___ acceleration

Back 53

decreasing

Front 54

The final velocity of a uniformly accelerating object which started from rest is equal to its acceleration multiplied by the___

Back 54

time

Front 55

The sum of two vector quantities is determined by their___ and magnitudes

Back 55

magnitude

Front 56

The length of an arrow-tipped line segment drawn to represent a vector is porportional to the___ of a vector

Back 56

line

Front 57

Vectors can be added by placing the___ of one vector at the head of another vector

Back 57

end

Front 58

When vectors are added, the___ is drawn from the tail of the first vector to the head of the second vector

Back 58

resultment

Front 59

A person takes a walk around a city. The vector drawn from starting position to the final position represents a(n)___

Back 59

displacement

Front 60

When adding two vectors, neither the length nor the___ of either vector is changed

Back 60

direction

Front 61

If two vectors act in the same or in___ directions, their vector sum can be found algebraically

Back 61

opposite

Front 62

If two vectors act perpendicularly, the magnitude of the resultant vector can be found using the___ theorem

Back 62

pythagoreum

Front 63

Any vector can be resolved into___ which, when added, give a resultant equal to the original vector

Back 63

components

Front 64

For an object moving at a(n)___ speed, the distance traveled is directly porportional to the elapsed time

Back 64

constant

Front 65

The steepness of a graph line is called the___ of the graph

Back 65

slope

Front 66

The slope of a straight of a position-time graph yields the___ of the moving object

Back 66

velocity

Front 67

The slope of a straight line is___

Back 67

constant

Front 68

As the velocity of an object increases, the slope of the line on the position-time graph___

Back 68

increases

Front 69

When the slope of the line on a distance-time graph is___ the object involved is at rest

Back 69

zero

Front 70

On a(n)___-time graph, the area between the line of the graph and horizontal axis represents the displacement of the object

Back 70

Velocity

Front 71

With constant acceleration, the curve of a(n)___-time graph is a half parabola

Back 71

position

Front 72

The slope of the line on a velocity-time graph shows the___ of a moving object.

Back 72

acceleration

Front 73

With constant acceleration, the distance an object travels varies directly with the___

Back 73

t^2

Front 74

If the position-time graph is a curved line, the slope of the___ yields the instantaneous speed at the point of the curve it touches

Back 74

tangent

Front 75

The area between the graph line and the horizontal axis on a(n) ___-time graph represents the change of velocity of the object in a given time interval

Back 75

acceleration

Front 76

A negative acceleration might mean that an object is speeding up while goingin the___ direction

Back 76

opposite

Front 77

Straight lines on a position-time graph indicate that no___ occurs

Back 77

motion

Front 78

___and Galileo contributed most to our understanding of motion

Back 78

Newton

Front 79

A change in state of motion of an object is caused by a(n)___

Back 79

force

Front 80

Electromagnetic forces are___ than gravitational forces

Back 80

stronger

Front 81

___is the property of an object which causes it to resist all changes in state of motion

Back 81

inertia

Front 82

Unless acted upon by a(n) ___ an object at rest or in a state of uniform motion will remain at rest or in uniform motion

Back 82

unbalanced outside forces

Front 83

An object is___ when an unbalanced force acts on it

Back 83

accelerating

Front 84

A net force of one___ gives a mass of 1 kg an acceleration of 1 m/s^2

Back 84

Newton

Front 85

The acceleration of an object varies directly with the applied force and inversely with the___ of the object

Back 85

mass

Front 86

____is the measurement of the gravitational force acting on an object

Back 86

weight

Front 87

____depends upon the amount of matter in an object and is independent of the location of the object

Back 87

mass

Front 88

____is a force that opposes the motion of an object

Back 88

friction

Front 89

The force of friction depends upon the type of surfaces in contact and the object's____

Back 89

weight

Front 90

Static friction is ____ than sliding friction

Back 90

stronger

Front 91

Complete the following statement: "Every force is accompanied by a(n)____

Back 91

opposite and equal force

Front 92

Force, like velocity and displacement, is a ____ quantity

Back 92

constant

Front 93

The sum of two vectors, or the ____, is found by drawing a third vector from the tail of the first to the head of the second

Back 93

slope

Front 94

If two vectors act in the same or in____ directions, their vector sum can be found algebraically

Back 94

opposite

Front 95

If two vectors act perpendicularly, the magnitude of the resultant vector can be found using the ____ theorem

Back 95

pythagorean theorem

Front 96

If three different 7.0N forces act simultaneously on the same object, the resultant can be no greater than ____N

Back 96

21

Front 97

An object is in ____ when the vector sum of the forces acting on it is zero

Back 97

equilibrium

Front 98

A single force that can place two or more other forces acting on a single point in equilibrium is ____

Back 98

equilibrant

Front 99

The ____force is equal in magnitude to the resultant, but opposite in direction

Back 99

equilibrant

Front 100

Any vector can be resolved into____ which, when added, give a resultant equal to the original vector

Back 100

components

Front 101

Any object that is thrown or otherwise projected into the air is called a(n)____

Back 101

projectile

Front 102

A(n)____ is the path taken by an object thrown into the air

Back 102

trajectory

Front 103

The vertical and horizontal motions of a projectile shot into the air are ____ of one another

Back 103

independent

Front 104

Because of inertia, the____ velocity of a projectile is constant

Back 104

horizontal

Front 105

The time required for a projectile to strike the ground depends on the original height, the initial____ velocity and the acceleration due to gravity

Back 105

vertical

Front 106

Two golf balls are released at the same time from the same height. One ball is dropped vertically while the other is projected horizontally. The____ of the two balls is always the same

Back 106

height