What does a fast speed look like on a distance and time graph?
The slope is steep
What does a straight line indicate on a graph when calculating speed
constant speed
A car on the highway is traveling 55 mi/hr and it passes another car. In order to pass, the car has to accelerate to 65 mi/hr. The car reaches this velocity 40 seconds later. What is the average acceleration of the car?
.25 mi/hr/sec
A train traveled 555 miles at an average speed of 60 mph. How long did the journey take?
9 hours and 15 minutes
A salesman traveled at an average speed of 50 km/h for 2 hours 30 mins. How far did he travel?
125 km
What is the change in position relative to some fixed object or place
motion
What is the formula for time?
distance/speed
This is the distance traveled per unit of time; rate of movement, how fast something is going.
speed
What is speed that does not change
constant speed
A skydiver accelerates from 20 m/s to 40 m/s in 2 seconds. What is the skydiver’s average acceleration
10 m/s^2
The speed you are going in a specific moment (speedometer)
instantenous speed
What is the formula for distance?
speed x time
What is the total distance travel divided by the total time it takes to travel that distance
average speed
What is the the rate at which velocity changes Can be: Speeding up Slowing down Change in direction
acceleration
This is the final velocity - initial velocity /time
acceleration
What is the formula for finding speed
distance/time
What is the speed in a given direction, example 15 miles per hour
velocity
The faster the _____________ the steeper the __________
motion slope
What does a upward curved line represent on a distance and time graph?
The object is getting faster
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