-
What are the dimensions of volume?
L^3
-
What are the dimensions of velocity?
distance/time
-
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.
-
A scalar quantity is defined as
A quantity that is specified by a numerical value only
-
A vector quantity is defined as
A quantity that is specified by using both a numerical value and a direction
-
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?
- Distance
- distance/time
-
At a given instant, the acceleration of a particle is zero, this means that...
The velocity is not changing at that instant
-
The area under a curve in a velocity versus time graph gives
displacement
-
A stone is thrown straight up. When it reaches its highest point, its velocity is ___ and acceleration is ___
-
The horizontal component of the velocity of a projectile does what during the entire trajectory?
Remains constant
-
For a projectile launched horizontally, the vertical component of the velocity...
Continuously increases
-
For which value of Θ is the height of a projectile fired from ground level a maximum?
90° above horizontal
-
For which value of Θ is the range of a projectile fired from ground level a maximum?
45° above horizontal
-
Equation for average speed
-
- distance/time
-
Equation for average acceleration
-
How do you find instantaneous velocity?
Slope of tangent line
-
Distance equation for circle
2(pi)r
-
If acceleration is constant, velocity changes linearly in the equation:
-
Equation for average velocity
-
Equation of position as a function of time
-
Equation of velocity as a function of position
-
How many cubic cm in a liter?
1000 cm³
-
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
-
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.
-
Distance equation as a function of speed:
-
-
Displacement in x direction
- x=dcosθ
- x=
-
Displacement in y direction
- y=dsinθ
-
-
-
Equation for angle of direction
θ
-
Definition of deceleration
Velocity and acceleration have opposite signs
-
Definition of range
Horizontal distance a projectile travels
|
|
