Busy. Please wait.
or

show password
Forgot Password?

Don't have an account?  Sign up 
or

Username is available 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.
We do not share your email address with others. It is only used to allow you to reset your password. For details read our Privacy Policy and Terms of Service.


Already a StudyStack user? Log In

Reset Password
Enter the associated with your account, and we'll email you a link to reset your password.
Don't know
Know
remaining cards
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
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

Newton's 2nd Law

questions

QuestionAnswer
State Newton's 2nd law in words The acceleration produced by a net force on an object is directly proportional to the magnitude of the net force, is in the same direction as the net force, and is inversely proportional to the mass of the object.
State Newton's 2nd law in equation form a = F/m
In Newton's 2nd law what is a and what are its units? a stands for acceleration and its unit is meters per second squared
In Newton's 2nd law what is F and what are its units. F stands for net force and its units are in newtons.
In Newton's 2nd law what is m and its units? m stands for mass and is always in kilograms.
What is meant by the net force that acts on an object? the resultant of all applied forces
Suppose a cart is being moved by a certain net force. If a load is dumped into the cart so its mass is doubled, by how much does the acceleration change? It will decrease by one-half.
What does inversely related mean? If one quantity increases, the other decreases and vice versa.
What does directly related mean? If one quantity increases, the other increases and vice versa.
How is acceleration produced? By the change in velocity over time
How much force does a 20,000 kg rocket develop to accelerate 1 meter per second squared? 20,000 N
Name three ways we can obtain acceleration or a change in velocity increasing speed, slowing down, or changing direction
Calculate the acceleration if you push with a 20 N horizontal force on a 2 kg block on a horizontal air table with a friction force of 4 N. 8 meters per second squared
If a four-engine jet accelerates down the runway at 2.0 meters per second squared and one of the engines fails, how much acceleration will the other three produce? 1.5 meters per second squared
A rocket fired from its launching pad not only picks up speed, but its acceleration also increases significantly as firing continues. Why is this so? (Hint: About 90% of the mass of a newly launched rocket is fuel). As the mass decreases, the acceleration increases because they are inversely related
Created by: william myricks