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# Physics - Chapter 2

Even though we are not moving __________ to the chair we are sitting in, we are actually moving as fast as the earth through space. relative
_____ is the measure of how fast something is moving. Speed
_____ is the measure of how fast something is moving and in which direction. velocity
To find speed, you divide this by time. distance
_____ is the speed at any given moment in time. instantaneous speed
________ is calculated by dividing the total distance divided by the time it took to travel it. average speed
Velocity is changing if the speed is changing or ____ is changing direction
The rate at which velocity is changing is called what? acceleration
To find this you divide distance by velocity. time
What is the relationship between acceleration and time? indirectly proportional
What is the relation ship between speed and distance? directly proportional
An object is in _____ when there is no air resistance and gravity is the only thing acting on a falling object. freefall
You calculate ____ by dividing velocity by time. acceleration
The ___________ is 9.81 m/s2. acceleration due to gravity
You can find this by multiplying acceleration by time. velocity
A ___ quantity has both magnitude and direction vector
a ____ quantity has only magnitude. scalar
The speedometer in a car tells you the ___ of the vehicle. instantaneous speed
______ is responsible for the different accelerations of a feather and a coin when dropped air resistance
Created by: abolvin