Term
| What are the SI Measurement Standards? |
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Definition
Length - Meter - m
Mass - Kilogram - kg
Time - Second - s
Temperature - Kelvin - K
Electric Current - Amperes - i
Light Intensity - Candela - cd
Amount of Substance - Moles - mol
Force - Newton - n |
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Term
| What are the measurement prefixes? |
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Definition
Mega - 1,000,000 - M
Kilo - 1,000 - k
Deci - 0.10 - d
Centi - 0.01 c
Milli - 0.001 - m
Micro - 0.000001 -
Nano - 0.000000001 - n |
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Term
| What are the scientific Derived Units? |
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Definition
Speed - meters per second - m/s
Area - square meters - m2
Volume - cubic meters - m3
Density - kilograms per cubic meter - kg/m3 |
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Term
| What is a direct relationship. |
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Definition
| When the increase in one increases another. Example. When gas is exposed to an increase in temperature, it's mass increases. |
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Term
| What is an inverse relationship. |
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Definition
| When the increase of one decreases the other, or the decrease of one increases the other. Example. When you increase your speed, you decrease your travel time or when you decrease the amount of fluid in a glass, you increase the empty space. |
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Term
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Definition
| The changing conditions or quantities in an experiment. |
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Term
| What is an independent variable? |
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Definition
| The quantity or condition changed on purpose in an experiment. |
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Term
| What is a dependent variable? |
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Definition
| What is changed as a result of changing the independent variable. |
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Term
| What is the basic hypothesis of the Ptolemaic System? |
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Definition
| That each object in the sky moves on it's own imaginary sphere. |
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Term
| What are the boiling and freezing temperatures in Kelvin? |
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Definition
Boiling - 373.15
Freezing - 273.15 |
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Term
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Definition
| How fast an object is moving. |
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Term
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Definition
| An objects speed and direction. |
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Term
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Definition
| A change in an objects velocity (speed or direction). |
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Term
| What occurs when acceleration and velocity are in the same direction? |
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Definition
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Term
| What occurs when acceleration and velocity are in different directions? |
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Definition
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Term
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Definition
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Term
| For an object to accelerate, it requires what? |
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Definition
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Term
| What are the characteristics of force. |
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Definition
| All forces have both direction and size (magnitude). |
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Term
| What do you call velocity at rest? |
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Definition
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Term
| What do you call velocity in movement? |
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Definition
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Term
| What are balanced forces? |
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Definition
| Forces that combine to produce a net force of zero. |
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Term
| What are unbalanced forces? |
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Definition
| When one or more of the multiple forces acting on an object are stronger than the remaining forces. Example: When picking up a mug off of a table, the force of the hand and the table is stronger than the gravity on the mass of the mug. |
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Term
| What is Newton's First Law? |
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Definition
| Also called the Law of Inertia. Net force on an object is the cause of acceleration. If an object is moving, it will continue to move at the same velocity from it's own momentum. |
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Term
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Definition
| Inertia is the tendency to keep the same motion, or maintain the same velocity, whether the object is at rest or moving. |
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Term
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Definition
| Intertia is measured by an object's mass. The larger the mass, the larger the inertia. |
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Term
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Definition
| Mass is the amount of matter in an object, not the weight. Weight is the amount of gravitational pull on an object. |
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Term
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Definition
| Weight is the amount of gravitational pull on an object, not the mass. Mass is the amount of matter in an object. |
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Term
| What is Newton's Second Law? |
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Definition
The acceleration produced equals the net force in proportion to the mass.
Formula: Acceleration = Net Force/Mass
or a=Fnet/m or Fnet=ma |
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Term
| What is Newton's Third Law? |
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Definition
| When an object exerts force on a second object, the second object exerts the same magnitude of force, in the opposite direction, on the first object. |
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Term
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Definition
| An opposing force on an object. |
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Term
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Definition
| Moving friction. It is the force of friction between two objects moving against each other.The direction of kenetic friction is opposite of the direction the object is moving. |
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Term
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Definition
| Stationary friction. It is the force that occurs between two objects that are touching, but not moving. |
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Term
| What are some characteristics of gravity? |
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Definition
| Gravity is an attractive force that pulls on an object instead of pushes. |
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Term
| What is Newton's Law of Universal Gravitation? |
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Definition
| The force of gravity between two objects is directly proportional to their masses and inversely proportional to the square of the distance between them. |
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Term
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Definition
| It is the mass of an object times its velocity. |
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Term
| What is the Law of Conservation of Momentum? |
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Definition
| Momentum is conserved when two or objects collide. |
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Term
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Definition
| It is the amount of bounce an object has after a collision. |
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