Download 1. ABSOLUTE ZERO The lowest timperature possilbe where

1. ABSOLUTE ZERO
The lowest timperature possilbe where everything, even atoms,
stops moving. -273 degrees C and 0 degrees Kelvin.
2. ACCELERATION
____ is the rate at which velocity is changing. It can be going
faster, going slower, OR CHANGING DIRECTION.
3. AIR RESISTANCE
Objects falling through air experience a type of fluid friction
called _______.
4. AMOUNT OF
Inertia depends on the ___ of mass an object has. An object
with more mass has more inertia and is harder to stop moving
or to get moving.
5. ARCHIMEDES
___ principle states that the buoyant forces acting on a
submerged object is equal to the weight of the fluid the object
replaces (ie takes up in the water).
6. AVERAGE SPEED
is equal to the total distance divided by the total time.
7. BALANCED
_____ forces acting on an object do not change the object's
motion.
8. BALL OF FOOT
The _______ of foot is a second-class lever.
9. BAROMETER
The ___ measures air pressure.
10. BOILING
Takes place inside a liquid and on the surface. Rapid change
from liquid to gas.
11. BOILING POINT
The temperature at which a liquid boils and changes from a
liquid to a gas.
12. BOTH
One reason water pressure is higher then air pressure is it has
____ the air and the water pressing down on an object.
13. CENTRIPETAL
Any force that causes an object to move in CIRCULAR PATH
is a ____.
14. CHANGE
To determine the acceleration of an object moving in a straight
line, you must calculate the ____ in speed per unity of time.
(final speed - initial speed) divided by time.
15. CHEMICAL ENERGY
Your body breaks the bonds of atoms in food to provde ___ to
cary out life's tasks. ____ is the energy stored stored in
chemical bonds.
16. COMBUSTIBILITY
The ability to react between oxygen and fuel that results in a
fire.
17. COMPOUND
A ___ machine utilizes two or more simple machines.
18. CONDUCTION
The transfer of heat from one particle of matter to another. A
spoon in hot water gets hot because heat moves from water
particles to the colder spoon not because of a physical
change. 2 mediums or substances.
19. CONSERVATION OF ENERGY
The law of _____ is the rule that energy cannot be created or
destroyed.
20. CONSERVATION OF MATTER
If 2 grams of hydrogen react with 16 grams of oxygen, we get
18 grams of a new substance because of
21. CONVECTION CURRENT
The circular motion of a fluid is known as _____________.
22. DECREASES
Pressure ____ as the area over which the force is distributed
increases. Think of snow shoes.
23. DENSITY
___ = mass divided by volume. The density of water is 1.0 ml
or 1.0 g/cm3
24. DEPOSITION
Changing from a gas state directly to a solid state without any
liquid state.
25. ELASTIC
______ potential energy is Potential energy stored as a result
of deformation of an _____ object, such as the stretching of a
rubber band. Stored energy is increased.
26. ELBOW
The ___ is a third class lever. So is a baseball bat.
27. ENERGY
The ability to do work. ____ is a property of many substances
and is associated with heat, light, electricity, mechanical
motion, sound, nuclei, and the nature of a chemical. __ is
transferred in many ways.
28. EQUAL
If one object exerts a force on another object, then the second
object exerts a force of ___ strength in the opposite direction
on the first object. OR for every action, there is an ____ but
opposite reaction.
29. EQUAL
A rocket can rise into the air because the gases it expels with
a downward action force exert an ___ but opposite reaction
force on the rocket sending it forward.
30. EXTERNAL COMBUSTION
A ___ engin burn fuel outside the engine in a boiler. Steam
locomotive.
31. FIRST CLASS
A _____ lever has the fulcrum between the input force and the
output force - examples are scissors, pliers, and seesaws. The
direction of the force is changed..
32. FLAT HORIZONTAL
A _______ line on a distance time graph mean an object is at
rest and not moving
33. FLUID
___ friction occurs in fluids such as water, air, oil, that flow
easily. It occurs when a solid object moves through a fluid.
34. FLUID
All of the forces exerted by the individual particles in a ___
combine to make up the pressure exerted by the ___.
35. FOSSIL FUELS
Fuel that developed over hundreds of millions of years it is a
non-renewable resource. Coal, petroleum, natural gass.
36. FREE FALL
In ___ the force of gravity is an unbalanced force, which
causes an object to accelerate.
37. FULCRUM
The fixed point that a lever pivots on or rotates around is
called a _____.
38. GRAVITY
___ is the force that pulls object to each other because
positive protons in one object are attracted to negative
electrons in the other.
39. HYDRAULIC
When force is multiplied by applying the force to a small
surface area and the increase in pressure is transmitted to
another part of the confined fluid which pushes a larger
surface are, this is known as a ___ system.
40. INCLINED PLANE
A flat sloped surface is a ________. If I increase the distance
with this machine by 4 times then I need 1/4 the force.
41. INCREASE
I can ___ density by adding matter inside a container or by
forcing everything in a smaller container.
42. INCREASES
Pressure ___ as the area over which a force is distributed is
made smaller. Think of high heel shoes going through
something.
43. INERTIA
_____ is the tendency of an object to keep doing what it is
doing. If it is moving, it wants to keep moving if it is at rest it
wants to remain at rest.
44. INPUT
The ___ force is the force you exert on a machine.
45. INPUT WORK
The ___ is the input force times distance.
46. INSTANTANEOUS
____ is the rate at which an object is moving at a given instant
in time.
47. INSULATOR
A ___ is a material through which an electric charge cannot
flow easily (rubber).
48. INTERAL COMBUSTION
Engines that burn fuel in cylinders inside the engine are
_________ engines. A car is a four stroke engine. Yard
equipment is usually 2 strocke engine.
49. JOULE
The SI unit of measurement for work is _____. If I work, I can
buy ___.
50. KINETIC ENERGY
______ is the energy of matter in motion. ___ energy
increases as an objects mass or speed increases - ie goes
faster or gets heavier.
51. LEVER
A ___ is a rigid bar that is free to pivot or rated on a fixed point
called a fulcrum.
52. MACHINE
A ______ makes work easier by changing at least one of
three factors - the strength of the force, the distance the force
is exerted, or the direction of the force.
53. MASS
The force of gravity an object can exert on something else
depends on the ___ of the object.
54. MECHANICAL
The ____ advantage is the number of times a machine
increases a force exerted on it.
55. MECHANICAL ENERGY
Motion - contains both potential and kinetic energy. Moving
water and moving are are often used to generate elelctricy
(another form of energy). These are examplesThe energy of
an object has due to its movement or position is called ___.
56. METER
The SI unit of length is a little longer than a yard and is called
a __.
57. MOTION
An object is in _____ if its distance from another object is
changing.
58. MOVING
When the speed of a ________ fluid increases, the pressure
within the fluid decreases. This is Bernoulli principle.
59. NECK
The ___ is a first class lever.
60. NET
The combination of all the forces acting on an object is called
the ____ force.
61. NET FORCE/MASS
The formula for acceleration is ____ and is measured in m/s/s
62. NEWTON
The strength of force is measured in the SI unit called the
_____.
63. NO
If a force is applied to an object but the object does not move
then there is __ work.
64. NUCLEAR ENERGY
A type of potential energy. the energy stored in the nucleus of
an atom. Think atomic bond explosion.
65. OUTPUT
The ___ force is the force the machine exerts on an object.
66. OUTPUT WORK
The ___ is the output force times distance.
67. POTENTIAL ENERGY
___ is the energy an object has because of its position.
68. POWER
The rate at which work is done. How fast for is done. Total
work is always the same.
69. POWER
_____ equals the amount of work done on an object in a unit
of time. It is work divided by time.
70. PRESSURE
A force exerted over the surface of an area is called ______.
This is not friction.
71. PROJECTILE
An object that is thrown is called a____.
72. PULLEY
Can change direction of force. 5 of these mean I need 1/5 the
force. A ___ is a simple machine with a grooved wheel and a
rope or cable wrapped around it.
73. REFERENCE POINT
A ____ is a place or object used for comparison to determine if
something is in motion. An object is in motion if it changes
position relative to a ___.
74. REFRIGERANT
A substance called a _________ absorbs and releases heat in
an air conditioner or refrigerator.
75. ROLLING
___ friction occurs when an object rolls across a surface.
76. SAME
Work is force times distance and measured in joules. If I use a
simple machine to increase distance then force decreases and
if I increase force then distance goes down. But the TOTAL
AMOUNT OF WORK IS ALWAYS THE ___
77. SCREW
A ____ can be thought of as an inclined plane wrapped around
a cylinder.
78. SECOND CLASS
A ___ lever has the input force at one end. The output force in
the middle and the fulcrum at the other end. The input and
output force go in the same direction. A wheelbarrow is an
example.
79. SI
Scientists all over the world use the same system of
measurement called the International System of Units or ___.
80. SLIDING
___ friction occurs when two SOLID surfaces slide over each
other.
81. SLOPE
The steepness of a line on a graph is called ____.
82. SPECIFIC HEAT
The amount of energy required to raise the temperature of 1
kilogram of a material by 1 kelvin is called its ___. Sand has a
much lower ______ then water so water is quicker to heat and
stays hot longer.
83. SPEED
___ is equal to distance divided by time.
84. SQUARED.
To find acceleration, I need to remember that the acceleration
is measured in meters per seconds ____.
85. STRAIGHT DIAGONAL
A ____ on a distance time graph mean an object is moving at
a constant speed.
86. SUBLIMATION
Changing from a solid state directly to a gas state without any
liquid state. Dry ice, frozen C02 is an example.
87. SUN
All energy on earth starts (originates) from the ______.
88. TEMPERATURE
______ is a measure of the average energy of random motion
particles of matter.
89. TERMINAL
The greatest velocity a falling object reaches is called ___
velocity and is reached when the force of air resistance equals
the weight of the object.
90. THERMAL ENERGY
Temperature is the average energy. _____ is the total energy
(potential and kinetic) of all of the particles in an object.
91. THIRD-CLASS
A ___ lever has the fulcrum at one end, the input force in the
middle and the output force at the other end. A baseball bet is
one example.
92. TOTAL
The law of conservation of momentum states that the total
momentum of any group of objects remains the same, or is
conserved unless outside forces act on the object.
93. TOTAL ENERGY
The potential plus kenetic energy of all the particles in an
object.
94. UNBALANCED
____ forces acting on an object result in a net force and cause
a change in the object's motion.
95. VELOCITY
When you know both the speed and the direction of an
object's motion, you know the ____ of the object.
96. WATT
The SI unit for power is the ____. Ask me what power is
measured in? What?
97. WEDGE
A ___ is a device that is thick at one end and tapers to a thin
edge at the other end.
98. WEIGHT
Air pressure is the ____ of the air above a particular point
pressing down on an object.
99. WHEEL AND AXLE
A ___ is a simple machine made of two circular objects
fastened together which rotate around a common center.
100. WORK
When an object moves in the same direction in which the
force is exerted on it, then ___ is done.
1. ABSOLUTE ZERO
2. ACCELERATION
3. AIR RESISTANCE
4. AMOUNT OF
5. ARCHIMEDES
6. AVERAGE SPEED
7. BALANCED
8. BALL OF FOOT
9. BAROMETER
10. BOILING
11. BOILING POINT
12. BOTH
13. CENTRIPETAL
14. CHANGE
15. CHEMICAL ENERGY
16. COMBUSTIBILITY
17. COMPOUND
18. CONDUCTION
19. CONSERVATION OF ENERGY
20. CONSERVATION OF MATTER
21. CONVECTION CURRENT
22. DECREASES
23. DENSITY
24. DEPOSITION
25. ELASTIC
26. ELBOW
27. ENERGY
28. EQUAL
29. EQUAL
30. EXTERNAL COMBUSTION
31. FIRST CLASS
32. FLAT HORIZONTAL
33. FLUID
34. FLUID
35. FOSSIL FUELS
36. FREE FALL
37. FULCRUM
38. GRAVITY
39. HYDRAULIC
40. INCLINED PLANE
41. INCREASE
42. INCREASES
43. INERTIA
44. INPUT
45. INPUT WORK
46. INSTANTANEOUS
47. INSULATOR
48. INTERAL COMBUSTION
49. JOULE
50. KINETIC ENERGY
51. LEVER
52. MACHINE
53. MASS
54. MECHANICAL
55. MECHANICAL ENERGY
56. METER
57. MOTION
58. MOVING
59. NECK
60. NET
61. NET FORCE/MASS
62. NEWTON
63. NO
64. NUCLEAR ENERGY
65. OUTPUT
66. OUTPUT WORK
67. POTENTIAL ENERGY
68. POWER
69. POWER
70. PRESSURE
71. PROJECTILE
72. PULLEY
73. REFERENCE POINT
74. REFRIGERANT
75. ROLLING
76. SAME
77. SCREW
78. SECOND CLASS
79. SI
80. SLIDING
81. SLOPE
82. SPECIFIC HEAT
83. SPEED
84. SQUARED.
85. STRAIGHT DIAGONAL
86. SUBLIMATION
87. SUN
88. TEMPERATURE
89. TERMINAL
90. THERMAL ENERGY
91. THIRD-CLASS
92. TOTAL
93. TOTAL ENERGY
94. UNBALANCED
95. VELOCITY
96. WATT
97. WEDGE
98. WEIGHT
99. WHEEL AND AXLE
100. WORK