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Unit 9/chapter 2

Unit 9/chapter 2 study guide

If u walk 2 miles from your house and back, what is your a) distance traveled and b) displacement? A. 4 miles B. 9 miles
Motion is defined as a change in Position
Which if these is a velocity: 5 m/s or 5 m/s north? why? 5 m/s north because velocity includes direction.
A single point on a distance-time graph tells you an object's Instantaneous speed
Acceleration Is the rate of change of velocity over time.
Inertia varies depending on an object's Mass
Newton's first law of motion is also called the law of Inertia
The distance traveled by an object divided by the time it takes to travel that distance is called Average speed
The speed of an object at rest is Zero
The difference between speed and velocity is velocity includes Direction
The SI unit for acceleration is M/s 2
The combination of all the forces acting on an object is called the Net force
If the net force acting on a stationary object is zero, the object will Remain at rest
An object is in motion when the object changes Position in relative to a stationary reference point
In a car crash Inertia could cause you to crash into the windshield.
When an object speeds up, it's acceleration is Positive; when an object slows down, it's acceleration is negative.
A= Acceleration
Vf= Final velocity
Vi= Initial velocity
Tf= Final time
D= Distance
V= Velocity
T= Time
The faster an object is moving, the Steeper the slope on a distance-time graph.
Created by: Katwill678