Busy. Please wait.
or

Forgot Password?

Don't have an account?  Sign up 
or

taken
show password

why

Make sure to remember your password. If you forget it there is no way for StudyStack to send you a reset link. You would need to create a new account.

By signing up, I agree to StudyStack's Terms of Service and Privacy Policy.


Already a StudyStack user? Log In

Reset Password
Enter the email address associated with your account, and we'll email you a link to reset your password.

Remove ads
Don't know (0)
Know (0)
remaining cards (0)
Save
0:01
To flip the current card, click it or press the Spacebar key.  To move the current card to one of the three colored boxes, click on the box.  You may also press the UP ARROW key to move the card to the "Know" box, the DOWN ARROW key to move the card to the "Don't know" box, or the RIGHT ARROW key to move the card to the Remaining box.  You may also click on the card displayed in any of the three boxes to bring that card back to the center.

Pass complete!

"Know" box contains:
Time elapsed:
Retries:
restart all cards




share
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.

  Normal Size     Small Size show me how

Momentum

notes for discussion

QuestionAnswer
Inertia in motion is called ______. Momentum
Write the equation for momentum. p = mass x velocity
In the momentum equation, what is the relationship between momentum and velocity? They are directly related
What is acceleration? A change in velocity
Name three ways velocity can change? speeding up, slowing down, or changing direction
What is momentum if there is no change in velocity? Zero
_________causes acceleration. Force
Velocity is speed and direction. True or False. True
A car is going 2 m/s north. Is this speed or velocity? Why? It is velocity because we have both speed and direction
Identify the following measurements as speed, velocity, or momentum: a. 88 km/h b. 10 m/s straight up c. 18 kg m/s down d. 19 m/s west a. speed b. velocity c. momentum d. velocity
Calculate the momentum of a 6.00 kg bowling ball moving at 10.0 m/s down the alley. p = 6.00 kg x 10.0 m/s = 60 kg m/s down the alley
Calculate the momentum of a 75 kg speed skater moving forward at 16 m/s. p = 75 kg x 16 m/s = 1200 kg m/s moving forward
Calculate the momentum of a 1.35 kg ostrich running north at 16.2 m/s. p = 1.35 kg x 16.2 m/s = 21.9 kg m/s running north
Describe the measurements necessary to find the average speed of a moving train. The distance the train traveled and the time it took to travel that distance must be measured.
Explain why knowing the velocity of an airplane is more important to a traveler than knowing only the airplane's speed. Velocity gives the direction the plane is heading.
_______and _______are important in changing momentum. Force and time
What is impulse? Impulse is force times time
What is the unit for impulse? N/s
An impulse always involves two variables. Name them. Impact force and impact time
Why should a golfer swing as hard as possible and follow through the swing? By doing so, he is creating the greatest force possible for as long as possible which results in a greater impulse and greater momentum.
Determine the units of a caterpillar's speed if you measure the distance the caterpillar travels in centimeters and the time it takes to travel this distance in minutes. cm/minute
Describe why your velocity changes when you ride a Ferris wheel even if the wheel turns at a constant speed. As the Ferris wheel turns, you are moving in a different direction at each instant of time. Since the direction changes, the velocity changes.
Describe the motion of a ball in a typical sport. Identify times when the ball moves with a constant velocity and times when its velocity changes. If a ball moves in a straight line at a constant speed, the velocity is constant. If the ball changes direction or speed, the velocity changes.
What is the velocity in meters per second of a sailboat that travels 149 m away from the shore in 16.8 s? velocity = d / t = 149 m / 16.8 s = 8.87 m/s away from shore
Created by: william myricks