SPEED + VELOCITY
If you are a passenger in the rear seat of a car moving at a steady speed, relative to whom are you at rest?
What is the person in the car with you/the driver?
The slope of a distance-time graph indicates which of the following:
distance, speed, time or displacement
What is the speed?
17.4 m/s indicates which of the following: acceleration, displacement, speed or velocity?
What is speed?
(Distance unit divided by a time unit, and no direction is given)
You take a 1 mile bike ride in your neighborhood every afternoon. You leave at 3 pm and return at 3:15 pm. What is the total displacement of your daily bike ride?
What is zero? (Starting and ending point are the same)
The equation for acceleration is change in speed divided by what?
What is time?
Speed is defined as the ratio of the distance an object moves to what?
What is time?
(speed = distance divided by time)
The slope of a speed-time graph indicates which of the following: direction, speed, acceleration or velocity?
What is the acceleration?
8.2 mi/hr2 south indicates which of the following: acceleration, speed, displacement or velocity?
What is acceleration?
(distance unit divided by a time unit squared, plus directional information)
Motion is described with respect to which of the following: graph, slope, displacement, or frame of reference?
What is frame of reference?
(motion is relative)
Acceleration is defined as the time rate of change of an object's _______.
What is velocity?
Distance divided by time is the equation for speed or velocity?
What is speed?
This is what a horizontal line on a distance-time graph indicates.
What is, the object is at rest?
42 cm/min east indicates which of the following: acceleration, speed, displacement or velocity?
What is velocity?
(distance unit divided by a time unit, includes directional information)
Is displacement is a scalar or vector quantity?
What is vector quantity?
What is the acceleration of an object that moves with constant velocity?
What is zero?
(The velocity is not changing)
A speedometer measures which of the following: average speed, instantaneous speed, or constant speed?
What is instantaneous speed?
(the rate at which an object is moving at a given moment in time)
This is the name for a line on a graph that is used to estimate values that are either higher or lower than the actual data collected.
What is extrapolation?
68.2 mi northwest indicates which of the following: acceleration, speed, displacement or velocity?
What is displacement?
(unit of miles by itself measures distance but with directional information)
Distance is the length of a path between two points. Displacement is the distance an object travels plus the _________ from the starting point.
What is direction?
If an object travels for 45 minutes with a constant velocity of 27 mi/h east, what is the acceleration?
Zero.
(Since the velocity is not changing the acceleration is zero. Time is irrelevant- acceleration is change in velocity- with no change in velocity, there is no acceleration)
The term "vector quantity" indicates what?
What is direction?
Accelerated motion shown on a distance-time graph is represented by a ______ line.
What is curved?
A conversion factor is the relationship between 2 units and will always equal _____.
What is one?
When graphing displacement, the sum of the vectors is called the ___________ vector and points directly from the starting point to the ending point.
What is resultant vector?
What is a situation in which you can accelerate even though your speed doesn't change?
What is a carousel?