Chapter 2 Kinetics Review Flashcards
Acceleration = Rate of change of __________
Velocity
Speed (a scalar) = __________ of velocity (a vector)
Magnitude
a = Δv/Δt = (__________)/(__________)
Change in Velocity, Change in Time
Negative acceleration occurs when __________ __________ in the __ direction or __________ __________ in the __ direction
Speeding Up, Negative
Slowing Down, Positive
SI Unit for Acceleration is __________
m/s²
SI Unit for Speed is __________
m/s
Average velocity when undergoing uniform acceleration = (__________) / __________
(Vf + Vi)/2
Value of g in SI Units is __________
9.8m/s²
Instantaneous Velocity = V at a given __________ of time
Instant
A vector has both __________ and __________
Magnitude and Direction
A scalar has only __________
Magnitude
Ignoring air resistance, the acceleration of all dropped objects is __________ __________.
The Same
Ignoring air resistance, the displacement of a falling object is proportional to __________.
Time²
Ignoring air resistance, an object thrown straight up has the same __________ on the way up as it does on the way down.
Acceleration
Ignoring air resistance, an object thrown straight up has a velocity of __________ at the top of its rise.
0 m/s
Ignoring air resistance, an object thrown straight up has an acceleration of magnitude __________ at the top of its rise.
9.8m/s²
For an object thrown straight up into the air, the total displacement upon landing at the same elevation is __________.
0
The slope of a velocity-time graph represents __________.
Average acceleration
The slope of a position-time graph represents __________.
Average velocity
The slope of a position-time² graph represents __________.
Average acceleration
The slope of a tangent to a curved position-time graph represents __________.
Instantaneous velocity
The area under a v-t graph represents __________.
Displacement
The area under a position-time graph represents __________.
Nothing
The area under a position-time² graph represents __________.
Nothing
The area under an acceleration-time graph represents __________.
Change in velocity
