General Knowledge
The dependent variable is
What is: The variable not controlled by the experimenter. Depends upon the independent variable (typically represented by y)
The number of significant digits from calculating 0.430*2.18
What is: 2?
The slope of a velocity vs time graph
What is: acceleration?
34kg worth of groceries weighs
What is: 334N?
True or False: The x - direction motion of a projectile is in constant acceleration
What is: False ?
The equation for position with constant acceleration
What is: x = 1/2at2+v0t+x0?
To linearize a top-opening parabola you would
What is: square the independent variable?
The velocity of the equation
x = 3.4m/s*t+2.4m
What is: 3.4 m/s?
If the normal force of an object is 25N and is sliding on a surface with coefficient of friction 0.25, the frictional force is
What is: 6.25N
True or False: Mass affects projectile motion
What is: False?
The area under a velocity vs time graph
What is: displacement?
If I double the string length of a pendulum the period would
What is: quadruple (4 times)?
To determine instantaneous velocity from a position vs time graph at t =5s, you would
What is: determine the equation of the tangent line at t = 5s?
True or False: An object that moves at constant velocity has all forces balanced on it
What is: True?
An object is thrown up with an upward velocity of 20 m/s, its height after 0.45s is
What is: 8.0m?
The vertical velocity at the exact top of a parabolic path
What is: 0 m/s?
A data set has an equation of E = 1.734 J/kg*m - 2.39 J. It has a maximum y value of 50J, the y - intercept is
What is: negligible?
A car accelerates uniformly at a rate of 2.3 m/s2 for 6.0s. The cars displacement is
What is: 41m?
True or False: Mass affects Newton's 3rd Law
What is: False?
(Nothing affects Newton's 3rd Law)
The time took for an object to reach 30m thrown downward with an initial velocity of 15 m/s (Hint: solve the quadratic)
What is: 1.4s?
The coefficient of friction depends upon
What is: the surfaces in contact with each other?
You test plot y vs x2 with a graph you produced and end up with a hyperbola (inverse function), the relationship concluded from this is
What is: y is proportional to 1/x2
A car traveling at 45 m/s needs to come to a stop. If the car travels 56m before stopping, its acceleration was
What is: -18 m/s2?
An object weighs 5kg and accelerates at a rate of 2.1 m/s2 due to a towing force of 7.1N, the frictional force opposing the motion is
What is: 3N?
A marble travels on a frictionless rail at a rate of 6.7 m/s that is on a table that is 4.5m tall, the horizontal range of the marble is
What is: 6.4m?