movement
What is the change in position of an object called?
what is displacement
Is speed a scalar or vector quantity?
What is a scalar?
what is the standard units for velocity
what is the standard unit for acceleration
m/s^2 meters per second squared
What does the slope of a position-vs-time graph represent?
velocity
An object moves from 3m to 10m. What is its displacement?
7m
is velocity a scalar or vector quantity?
vector
what equation can be used to calculate average velocity
average v= change in x/ change in t
what does acceleration equal to always
-g
What does the slope of a velocity-vs-time graph represent?
acceleration
A student walks 10 m east and then 4 m west. What is the student's displacement?
6m east
Which one has both magnitude and direction: a scalar or a vector?
vector
A car travels 100 m in 5 seconds. What is its average speed?
20m/s
what is the equation for average acceleration
on a position vs time graph what does the horizontal line mean
the object is at rest and velocity is 0
A person walks 5 m north, then 5 m south. What is their total distance traveled and displacement?
10m distance and 0m displacement
Classify each as scalar or vector: distance and displacement
distance- scalar
displacement-vector
A runner travels 50 m east in 10s. What is their average velocity?
5 m/s east
a car's velocity changes from 10m/s to 30m/s in 5 sec. what is its acceleration
4m/s^2
Imagine a position-vs-time graph that:
describe the objects motion
it moves in the positive direction, stops, moves in the negative direction
a runner starts at x=2m, runs to x=18m, then returns to x=7m. what are the runner's total distance traveled and final displacement?
27m distance and 5m displacement
You define right as positive. An object has a velocity of −8 m/s. What does the negative sign tell you?
the object is moving to the left
a person drives 15 miles to work, then back home, arriving at home 2 hours after he leaves. what is the average speed over the trip? what is the average velocity
speed- 15mph
velocity 0 mph
a car is travelling to the left and slowing down, what sign is the acceleration positive, negative, or zero
positive
A velocity vs time graph starts at +5m/s and slopes downward until it reaches -5m/s
does the object necessarily slow down the entire time
no, it slows down until v=0 then speeds up in the negative direction