Vocabulary
the process of something moving or changing place, or changing position
Motion
a place where someone or something is located or has been put
Position
Speed x Time = ?
Distance Formula
So, if a car takes 3 hours to travel a total distance of 150 miles what is the average speed
50m/s
If a runner covers a distance of 347 meters in 134 seconds, what is her speed?
2.59m/s
is a measure of how fast something moves or the distance it moves, in a given amount of time.
Speed
A speed in a specific direction
velocity
Distance/Time=?
speed formula
What is the velocity of a train traveling 1,500 kilometers eastward from San Francisco in 12 hours
125kph east
What is the velocity of a car that traveled a total of 75 kilometers north in 1.5 hours?
50 km/hr north
An object is the speed that an object has at any given instant. When an object moves, it doesn't always move at a steady pace.
Instantaneous speed
is simply the average of all the speedometer readings taken at regular intervals of time.
average speed
Distance ÷ Speed
Time Formula
An ant carries food at a speed of 1 cm/s. How many seconds will it take the ant to carry a cookie crumb from your kitchen table to its anthill, a distance of 5000 cm?
5,000 s
Calculate the speed of a dog running through a field if he is covering 23.7 meters in 54 seconds.
0.43 m/s
the rate at which velocity changes with time
Acceleration
the moving of something from its place or position.
displacment
Final Velocity - Initial Velocity
Time
Acceleration formula
If a jogger runs for 2,541 meters in a time of 43.6 minutes, what was the speed of the jogger?
58.28 m/min
If it takes you 45 minutes (0.75 hr) to bike to town, a distance of 4 km, what is your speed in km/hr?
5.3 km/hr
Two characteristics: magnitude and direction
Vector Quantity
One characteristic: magnitude (amount)
Scalar Quantity
Displacement/Time
velocity formula
Calculate the velocity of a car that travels 556 kilometers northeast in 3.4 hours.
163.52 km/hr northeast
A car moving at 80 mph has a speed of 35.8 m/s. What acceleration would it have if it took 5.0 s to come to a complete stop?
-7.16 m/s2