Vocabulary
What term is used to describe an object's change in position?
motion
What two things are needed in order to calculate speed?
Distance & Time
What is the formula for calculating distance?
d=s x t
A rate of change of velocity of an object.
Which type of graph shows how far an object traveled with time?
Distance-Time Graph
What is the space between two objects or points called?
Distance
An object that is neither speeding up nor slowing down travels at a
constant speed
Includes the speed of an object and the direction of its motion.
Velocity
What is the term for when an object slows down?
Negative acceleration (deceleration)
Can you figure out the speed of an object by looking at a Distance-Time graph? If so, how?
Yes. Divide distance and time.
What is the term used for the location of an object?
position
Calculate the speed of an object that travels 75 miles in 1 hour (including units)
75 mph
Velocity must always indicate
direction
What is the rate of acceleration due to gravity?
9.8 m/s2
When looking at a distance-time graph, what does a horizontal line tell you?
Shortest path from start to finish.
Displacement
The total distance an object travels divided by the time of travel
speed
What is the formula for calculating time?
t=d/s
What is the formula for calculating acceleration?
A = (final velocity-initial velocity)/total time
When looking at a distance-time graph, what does a steep line tell you?
It is moving quickly.
What is a place or object used for comparison to determine if something is in motion. Something that is stationary (not moving)
Reference point or Frame of Reference
What could be used as a good reference point?
A. A car
B. A stop sign
C. A person riding a bike
B. A stop sign
Because it is not moving
When velocity changes by the same amount over each time interval, the acceleration of that object is...
constant
A runner ends a race in 90 seconds going a speed of 9 m/s. What was his acceleration?
10 m/s/s OR 10 m/s2
What type of line shows acceleration on a distance-time graph?
Curved line.