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 happens when a car slows down and velocity changes?
negative acceleration (deceleration)
What is the term used to measure the distance an object moves per unit of time?
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 formula for calculating speed?
S=D/T
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
A rate of change of the velocity of an object.
acceleration
Velocity must always indicate
direction
What is the formula for calculating time?
T=D/S
When looking at a speed-time graph, what does a horizontal line tell you?
Constant speed
How far the object moves from its starting position
Displacement
The total distance an object travels divided by the time of travel
speed
On a speed-time graph, what slope direction shows deceleration
Downward slope. Negative slope
What is the formula for calculating distance?
D = S x T
When looking at a distance-time graph, what does a horizontal line tell you?
Object is at rest. Not moving.
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?
building, road sign, tree
When velocity changes by the same amount over each time interval, the acceleration of that object is...
constant
Calculate the speed of a car that traveled 76 miles in 2 hours
38 mph
What type of line shows acceleration on a distance-time graph?
Curved line.