Motion
The object or point from which movement is determined
-frame of reference
A person runs 35 meters southwest in 200 seconds, what is the velocity of the person?
0.175 m/s southwest
Definition of Displacement
1. Unit time is measured in (at least two)
2. Formula for time
1. seconds, hours
2. distance divided by speed
Definition of Distance
-How far an object has traveled
A ____________ quantity has magnitude only. Such as: time, distance or speed.
-scalar quantity
A car traveled 300 miles in 4 hours. How fast was the car driving?
75 miles per hour
Pythagorean theorem is used when
the displacement in an object makes a triangle
How long would it take for a Elyza to travel the distance of 200 kilometers to another candy store if she is traveling at a speed of 55 km/hr?
3.63 hr
. A plane traveled for about 2.5 hours at a speed of 1,200km/hr. What distance did it travel?
480 km/hr
___________ quantity has both a magnitude and a direction. Such as: velocity
-vector quantity
Speed is how fast an object is traveling. Velocity is the speed of an object in a certain direction.
-The difference between these two terms is that speed is ____________________________________ and velocity is_______________________________________.
scalar, vector
Justice walks 10 miles north then walks 4 miles east then walks 10 miles south. What is her displacement?
4 miles east
Calculate the acceleration of a bike with a starting velocity of 8 m/s, slowing to a velocity of 2 m/s, with a time of 3 seconds
-2 m/s/s
Formula for distance
-Speed multiplied by time
Four cardinal directions
North, South, East, West
In a distance-time graph what is measured?
-Speed
Your dog walks 300 meters in a circle and comes back to the same spot. What is the dog’s displacement?
zero
A soccer player is running at 6 m/s. He stumbles over another player's foot, he falls and rolls to a stop. This took 4 seconds. What was his acceleration?
-1.5 m/s/s
James walked 9 miles west, then walked 5 miles south, then walked 2 miles east and finally walked 6 miles north. What distance did James travel?
-22 miles
Define Motion
Change in position
Speed can be measured in which units?
A cat walked 5 meters south then walked 3 meters east. What is the cat’s displacement?
5.83 meters Southeast
Formula for acceleration
velocity final minus velocity initial divided by change in time (time final-time initial)
Units distance is measured in (at least 2)
-miles, meters, kilometers