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What are the dimensions of volume?
L^3
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What are the dimensions of velocity?
distance/time
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What is an order-of-magnitude estimate?
A rough estimate made by rounding off all numbers to one significant figure and its power of ten, and after the calculation is made, only one sig fig is kept.
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A scalar quantity is defined as
A quantity that is specified by a numerical value only
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A vector quantity is defined as
A quantity that is specified by using both a numerical value and a direction
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The position, x, of an object is given by the equation x=A + Bt + C , where t refers to time. What are the dimensions of A, B, and C?
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At a given instant, the acceleration of a particle is zero, this means that...
The velocity is not changing at that instant
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The area under a curve in a velocity versus time graph gives
displacement
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A stone is thrown straight up. When it reaches its highest point, its velocity is ___ and acceleration is ___
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The horizontal component of the velocity of a projectile does what during the entire trajectory?
Remains constant
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For a projectile launched horizontally, the vertical component of the velocity...
Continuously increases
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For which value of Θ is the height of a projectile fired from ground level a maximum?
90° above horizontal
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For which value of Θ is the range of a projectile fired from ground level a maximum?
45° above horizontal
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Equation for average speed
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Equation for average acceleration
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How do you find instantaneous velocity?
Slope of tangent line
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Distance equation for circle
2(pi)r
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If acceleration is constant, velocity changes linearly in the equation:
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Equation for average velocity
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Equation of position as a function of time
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Equation of velocity as a function of position
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How many cubic cm in a liter?
1000 cm³
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A parabola that has a negative slope but is curving down...
Indicates speeding up because the slopes of the tangent lines at each point are getting more negative and increasing in magnitude
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A parabola that has a negative slope but is curving up...
Indicates slowing down because the slope of the tangent lines at each point are getting less negative thus, decreasing in magnitude.
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Distance equation as a function of speed:
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Displacement in x direction
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Displacement in y direction
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Equation for angle of direction
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Definition of deceleration
Velocity and acceleration have opposite signs
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Definition of range
Horizontal distance a projectile travels
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