Save
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.
focusNode
Didn't know it?
click below
 
Knew it?
click below
Don't know
Remaining cards (0)
Know
0:00
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

Janssen Physics Ch.4

Mrs. Janssen's Chapter 4 Physics Test

QuestionAnswer
What causes acceleration? force
What causes a moving object to change direction? force
What force exists between objects even in the absence of direct physical contact? field force
What is the unit for Newtons? kg*m/s2
What does the length of a force vector represent? magnitude of the force
A free body diagram does NOT represent what? forces exerted by the object
What direction does the arrow point in a vector diagram to indicate gravitational force? down
What is the tendency of an object to maintain its state of motion? inertia
A car goes forward along a level road at a constant velocity. What additional force is necessary to bring the car into equilibrium? zero
If a non-zero NET force is acting on an object, what is the object doing? accelerating
The acceleration of an object is directly proportional to what? net external force acting on the object
The acceleration of an object is inversely proportional to what? object's mass
Which are simultaneous equal but opposite forces resulting from the interaction of two objects? action-reaction pairs
Newton's Third law of motion involves the interaction of what? two objects and two forces
The magnitude of the gravitational force acting on an object is what? weight
What is a measure of the quantity of matter? mass
A change in the gravitational force acting on an object will affect the object's what? weight
Do the units of the coefficient of friction have an actual value? no
Created by: jjanssen33
 

 



Voices

Use these flashcards to help memorize information. Look at the large card and try to recall what is on the other side. Then click the card to flip it. If you knew the answer, click the green Know box. Otherwise, click the red Don't know box.

When you've placed seven or more cards in the Don't know box, click "retry" to try those cards again.

If you've accidentally put the card in the wrong box, just click on the card to take it out of the box.

You can also use your keyboard to move the cards as follows:

If you are logged in to your account, this website will remember which cards you know and don't know so that they are in the same box the next time you log in.

When you need a break, try one of the other activities listed below the flashcards like Matching, Snowman, or Hungry Bug. Although it may feel like you're playing a game, your brain is still making more connections with the information to help you out.

To see how well you know the information, try the Quiz or Test activity.

Pass complete!

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