Science - Chapter 18-
Study Guide
Speed is the change in ______________________ divide by the time it
takes.
When graphing the motion of an object, you put _____________ on the
horizontal axis (x) and you put _______________ on the vertical axis (y).
Inertia resists a change in _______________ of an __________________.
Momentum is a measure of ______________________________________
____________________________________________________________.
Acceleration involves a change in _______________ and ______________.
The distance traveled divided by the time travel the distance is
_____________ or __________________.
To describe velocity, you need to know _______________________ and
________________________________.
The speed you read from your speedometer in your car is your
______________________ speed.
If your speed in your car changes from 10km/h to 6 km/h, you have a
__________________ speed. (your numbers are getting smaller.
Three ways to accelerate an object (when you are driving in your car) are
to ____________________________, ____________________________, or
________________________.
To have momentum, an object must be _____________________.
Momentum has the same direction as ________________________.
_______________________ is the tendency of an object to resist a change
in motion.
If you ride your 4-wheeler around the yard and return to the exact point
where you started, what is your displacement?
Describe your acceleration as you drive down the street at 10m/s, come to
a red light, wait for the green light and then start off again.
ConstantNegativePositiveSally is in a car driving 60mph. Another car passes Sally going in the
opposite direction at 60mph. Do both cars have the same velocity? Explain
What is the average velocity of a skier that in travels 20ft in 5.0 seconds to
the finish line? (Do the problem)
V=d
t
What is the acceleration of tractor that goes from 30m/s to 10m/s in a
time of 5.0 sec? (Do the problem)
A =sf-si
t
What is the momentum of a truck with a mass of 2000kg traveling at a rate
of 10m/s toward the barn? (Do the problem)
P=m ∙ v
What is the total momentum of a falcon that catches a pigeon in mid-air.
The falcon’s mass is 5 kg and is traveling 5 m/s. The pigeon’s mass is 2 kg
and is traveling 4 m/s. (sticky). P = mv + mv
A speed graph shows a horizontal line. This means that the velocity is
_______________.
What is the runner’s distance/displacement?
Start
25 meters
N
15 meters