Definitions
Define Vector Quantity
A quantity that includes direction.
How many seconds are in 20.5 minutes?
1,230 seconds
You ride your bicycle for 5.2 km west and then turn around and ride it 4.3 km east. What was your total distance traveled?
9.5 km
If a moving object experiences a net force and continues to move, is it accelerating?
Yes
Using your given graph, over what interval(s) is the velocity positive?
0 to 2
5 to 6
Define Friction
A force that resists motion when two bodies are in contact.
How many meters are in 5.2 kilometers?
You ride your bicycle for 5.2 km west and then turn around and ride it 4.3 km east. What was your displacement?
0.9km west
If a car travels at a constant velocity, is there a net force acting upon it?
Nope
Using your given graph, over what interval is the velocity negative?
From 2 to 3 seconds
Define Acceleration
A change in an object's velocity.
What measurement do these units represent?
-22 meters
Displacement
You are walking with a constant velocity of 1.5 m/s south. If you walk for 15 minutes, what will be your displacement?
1,350 meters south
If a car travels at 45 miles per hour continuously, is there a net force acting upon it?
Nope
Using your given graph, over what intervals is the object at rest?
3 to 5
Define Instantaneous Velocity
The velocity at a given instance of time.
What quantity do these units measure?
19 meters per second west
Velocity
You ride your bicycle with a velocity of 11m/s west. If you do that until your displacement is 7.8km west, how long will it take you?
709.09 seconds
-> Sig Figs
710 seconds
Using your given graph, when does the object experience acceleration?
2, 3, 5
Define Inertia
The tendency of a body to resist changes in its velocity.
What quantity do these units measure?
48 miles per hour
Speed
Two cars start next to one another on a road. One travels at 31 m/s north, while the other travels at 28 m/s south. How far will they be from each other in 22 minutes?
77,880 meters
What is the instantaneous velocity at 2.5 seconds?
-5 m/s