Definitions
Has magnitude
Scalar quantity
Speed
speed= distance/time or v=d/t
Speed is this quantity
Scalar
Velocity is this quantity
Vector
The unit of measurement for acceleration
m/s^2
Has magnitude and direction
Vector quantity
Velocity
velocity= displacement/time
The average speed of a camel that runs 200km in 10 seconds. Convert your answer to m/s.
20,000 m/s
m/s
When a car speeds up, its ________ velocity is larger than its ________ velocity.
final; initial
The property of matter to resist changes in motion
Inertia
15 m/s
A friend's house is 3869m east from your house. If you drive straight east and arrive at your friend's house 154s later, what is the average velocity of your trip?
25.12 m/s east
The three things that can cause an object to accelerate
It is speeding up, slowing down, or changing direction.
A state of no change with no net force acting
Equilibrium
A change in velocity
Acceleration
A car is traveling at 35m/s. It slows to a stop at a constant rate of 7.00 seconds. The distance the car travels during those 7.00 seconds before it stops.
245 m
The number of hours it will take you to walk a distance (displacement) of 6755m north if your average velocity is 4.67m/s north
.402 hours
The type of acceleration when the slope on a line graph goes up.
Positive acceleration
The combination of forces that act on an object
Net force
What you calculate on a trip when you take total distance and divide it by total time
Average speed
30 km/hr
A runner jogs 300 meters east in 60 seconds, then turns around and runs 100 meters west in 40 seconds. What is the runner’s average velocity?
2 m/s east
A car starts at the bottom of a hill with a velocity of 30m/s and 5 seconds later it is at the top of the hill going at a velocity of 15m/s. The acceleration of the car is...
-3 m/s^2