Terms and Units
Name two standard SI (metric) units used for displacement.
What are km, m, cm, mm, etc. (plus direction)
Two trucks are driving the exact same route from Dallas to Fort Worth. Truck A is traveling at a velocity of 10 m/s (West) and truck B is traveling at a velocity of 11 m/s (West). Which truck will arrive first?
Truck B
At football practice, Cam Newton threw the football at a speed of 13.4 m/s. If the ball was only in the air for 3.5 seconds, how far did it travel?
46.9 m
How far is the object displaced between 0-4.0 minutes?
20 meters (East)
A track is 100 meters around. If a runner runs half way around the track, his distance traveled would be____________?
50 meters
Name two standard SI (metric) units used for velocity.
What are m/s, km/hr (plus direction)
What is the velocity of a bowling ball that strikes a pin 7.8 meters (South) away in 2.5 seconds?
3.12 m/s (South)
A dog chases a squirrel for 18.0 seconds and runs at a speed of 5.6 m/s. How far does he run?
100.8 m
What is the objects velocity between 3.0 and 4.0 minutes?
0 m/s
A track is 100 meters around. If a runner runs all the way around the track, his displacement would be____________?
0 m
A scalar quantity that refers to "how fast an object is moving."
What is speed
Sarah has been training for a marathon. After months of training, she can now run 400.0 meters in 35.0 seconds. At what speed is Sarah running?
11.43 m/s
A bullet travels at 750.0 m/s. How long will it take a bullet to go 1000.0 m?
What is 1.333 s
Describe the objects velocity between 4.0 seconds and 5.0 seconds?
The object has constant negative velocity.
Abby walked 2 blocks north, 2 blocks east, 2 blocks west, and then 2 blocks south. What was her displacement?
0 blocks
A vector quantity that refers to "the rate at which an object changes its position"
What is Velocity
A running back runs a total distance of 35 m in 4 seconds. However, his displacement from start to finish is 30 meters (North). What was his velocity?
7.5 m/s (North)
It is 2,348 km from John's house to Los Angeles. If he averages 85 km/hr, how much time will he spend driving to LA?
27.62 hours
Describe the objects velocity between 0.0 seconds and 1.0 seconds?
The object has constant positive velocity.
In a football game, a ball is placed on the line of scrimmage. The QB drops back 2 yards. He then throws the ball 15 yards forward to a WR. The ball is carried an additional 6 yards by the WR. What is the distance the ball traveled?
23 yards
How are scalars and vectors different?
Scalars are quantities that are fully described by a magnitude (or numerical value) alone. Vectors are quantities that are fully described by both a magnitude and a direction.
A woman runs a marathon (40.56 km) in 4.6 hours. She finishes the race back at her starting point. What is her average velocity for the race?
0 km/hr
A rocket flies at a velocity of 650 m/s (North) and is in the air for 45 minutes, how far did it fly?
1,755,000 m (North)
Show a picture of a graph with constant positive velocity.
See graph.
Johnny drove his car 4 miles north, 12 miles west, 6 miles north, 20 miles south, 16 miles east, and 4 miles west. What was his displacement?
10 miles south