Kinematics
The assumption made when an object is dropped.
What is the initial speed is zero?
The slope of this type of motion graph can be used to determine velocity.
What is a position vs. time graph?
The acceleration of a projectile launched at some angle to the horizontal when it reaches its peak.
What is 9.8m/s/s down?
This describes an object’s resistance in changes to motion.
What is inertia?
Kinetic Friction always acts in this direction.
What is opposite motion?
The derivative of a velocity-time function.
What is acceleration?
This is equivalent to the area under the curve for a velocity vs. time graph.
What is displacement?
TRUE OR FALSE:
Horizontal components may be mixed with Vertical components of motion.
What is False?
Newton’s First Law declares that if this is absent an object will either remain at rest or continue moving with a constant velocity.
What is an unbalanced force?
This type of friction is always bigger.
What is Static Friction?
Take this of an acceleration-time function to find the corresponding position-time function.
What is the double integral?
This occurs when the velocity vs. time graph crosses through the x-axis.
What is a change in direction?
The velocity of a projectile launched at some angle to the horizontal when it reaches its peak.
What is the horizontal component of velocity?
This law best describes why it is important to wear a seatbelt.
What is Newton’s First Law?
The force a 60 degree ramp applies to a 1kg block.
What is 5N?
This must be true of an object’s motion in order to use the following kinematics equations.
v=vo+at; v2=vo2+2ad; d=vot+1/2at2
What is constant acceleration/linear motion?
This is equivalent to the area under the curve for an acceleration vs. time graph.
What is change in velocity?
These three things will be equal for a projectile at the same height on the way up as on the way down.
What are speed, acceleration, and time to/from the peak?
The resulting change in acceleration of an object if its mass and net force were both doubled.
What is no change in acceleration?
Reached when an object falling through the air is no longer accelerating.
What is terminal velocity?
An object is moving with velocity given by v(t)=2t+3t2 where v is in m/s. The object travels this far in 5 seconds.
What is 150 m?
For a position vs. time graph this would indicate a car moving in the positive direction but slowing down.
What is a curved line of decreasing positive slope?
The horizontal component of velocity for a projectile given an initial velocity of 20 m/s at a 60 degree angle above the horizon.
What is 10 m/s?
The Newton’s Third Law reaction force for the Earth pulling downward on a desk.
What is the desk pulling upward on the Earth?
The net force and acceleration of a 10kg block accelerating down a frictionless ramp inclined at 30 degrees.
What is 50 Newtons and 5 m/s/s?