unit 1 - ap physics 1

0.0(0)
Studied by 8 people
call kaiCall Kai
Locked
learnLearn
examPractice Test
spaced repetitionSpaced Repetition
heart puzzleMatch
flashcardsFlashcards
GameKnowt Play
Card Sorting

1/21

flashcard set

Earn XP

Description and Tags

Physics

Kinematics & Dynamics

Last updated 1:35 AM on 9/5/22
Name
Mastery
Learn
Test
Matching
Spaced
Call with Kai
Chat

No analytics yet

Send a link to your students to track their progress

22 Terms

1
New cards
Meter
SI unit of length, abbreviated m
2
New cards
Motion
a change in an object's position relative to a reference point
3
New cards
Displacement
distance and direction of an object's change in position from the starting point
4
New cards
Speed
distance an object travels per unit of time
5
New cards
Velocity
describes the speed and direction of a moving object
6
New cards
Acceleration
rate of change of velocity; can be calculated by dividing the change in velocity by the time it takes the change to occur
7
New cards
Centripetal Acceleration
acceleration of an object toward the center of a curved or circular path
8
New cards
Momentum
property of a moving object the equals its mass times its velocity
9
New cards
The distance between an object and a reference point is the object's __________.
position
10
New cards
If you travel 1.7 km north from your house at noon, and at 6:00 PM you travel 5.4 km south, what is your displacement?
3.7 km south
11
New cards
At 8:00 AM you leave home and walk 0.5 km to a friend's house. At 11:30 AM you return home, then travel by car to the mall, which is 10 km away, and arrive at 11:45 AM. What is the total distance traveled?
11 km
12
New cards
The direction and speed of an object is described by its __________.
velocity
13
New cards
Average speed is found by __________.
dividing total distance traveled by the total time
14
New cards
What is the equation for momentum?
15
New cards
What can change when momentum changes?
p=mv
16
New cards
An object's momentum includes its _________.
velocity and mass
17
New cards
If a soccer ball has a mass of 0.4 kg and a velocity of 20 m/s east, what is its momentum?
8 kg m/s east
18
New cards
__________ is the change in velocity divided by the time needed for the change to occur.
Acceleration
19
New cards
If a car is traveling 100 km/h west and comes to a stop in 3 min, what is the car's acceleration?
0.15 m/s2 east
20
New cards
An object traveling in a circular path is accelerating because its __________.
direction changes
21
New cards
Earth's __________ causes projectiles to follow a curved path.
gravity
22
New cards
Will a thrown ball or a dropped ball hit the ground first when dropped or thrown from the same height?
both balls hit the ground at the same time