Term
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Definition
A Scalar quantity has only magnitude
A Vector quantity has magnitude and direction.
The absolute value of a vector is a scalar |
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Term
| Write out the formula for average speed |
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Definition
total distance covered
----------------------
time interval |
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Term
| write out the formula for acceleration |
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Definition
change in velocity
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time interval (in a double unit such as seconds squared or seconds per hour) |
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Term
The distance traveled by
a uniformly accelerating object starting from rest is formulated as (distance traveled) |
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Definition
Distance traveled = 1/2 (acceleration X time X time)
d = 1/2g t^2 |
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Term
| Write out the formulas (3) for velocity |
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Definition
v = gt
= (B-A)/time
= a x t
g = rate of acceleration |
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Term
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Definition
Every object continues in its state of rest, or of uniform motion in a
straight line, unless it is compelled to change that state by forces
impressed upon it; Newtons 1st Law. |
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Term
| What is Newtons First Law? |
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Definition
The Law of Inertia; Every object continues in its state of rest, or of uniform motion in a
straight line, unless it is compelled to change that state by forces
impressed upon it. |
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Term
| What is a force simply defined as? |
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Definition
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Term
| What is the formula for and what does mechanical equilibrium mean? |
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Definition
When the net force on something is zero
EF = 0
(^ not actually E, but summation) |
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Term
| What are the two names for the force that acts to keep a book on a table per se? |
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Definition
| The support force, or normal force |
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Term
|
Definition
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Term
|
Definition
Displacement is a vector
vs
Distance is a scalar |
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Term
| Distinguish between constant position, constant velocity and constant acceleration in respect to displacement, velocity, and acceleration |
|
Definition
constant position
D=D
V=0
a=0
constant velocity
D= v x t
V = constant
A = 0
Constant acceleration
D = (1/2a)(t^2)
V = a x t
a = constant |
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Term
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Definition
| No other forces are acting on it except for gravity, happens the instant an object “leaves your hand”; constant acceleration |
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Term
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Definition
| The description of how things move |
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Term
| What causes acceleration? |
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Definition
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Term
| What is the formula for gravity? |
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Definition
mg
m = mass
g = acceleration rate (9.8 m./s^2 or 32 ft/s^2 |
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Term
What is weight a measurement of?
What is the pound unit of? |
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Definition
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Term
| What is the formula for net force? |
|
Definition
netF = ma
mass x acceleration |
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Term
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Definition
| In a net force, the direction of the force and the direction of the acceleration are equal; the summation of forces |
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Term
| What is a newton? (the formula for one) |
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Definition
Newton = kg x m/s^2
1 N = 1kg x m/s^2
m = meter |
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