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

Forces and Effects

Q and A about forces and their effects

QuestionAnswer
Name 3 things in which a force can do to a ball. They can make the ball move, make the ball stop, make the ball change directions, make the ball increase the speed, change the shape of the ball.
Define: synthetic man-made/ artificial
How do you measure forces? In what measurement? Using a Newton spring balance. Using the measurement: N= Newtons
Define the two main types of forces: contact force and non contact force. Contact force- when the object or material exerting force touches the object or material. Non-contact force- when the object or material does not touch each other.
What are the two contact forces? Define each of them. [impact force- when a movie object collides with a stationary object, the impact force is exerted by one object to another][strain force-hen elastic materials are squashed,stretched, twisted or bent they exert a force which acts in the opposite directions
What are the 3 non-contact forces? magnetic force, electrostatic force and gravitational force
What happens when a north and north pole are put together? Why? similar poles repels - your hands will be pushed apart
What happens when a south and north poles are put together? Why? different poles attract each other - your hands will be brought closer. the same goes to electrostatic force.
What is the purpose of a 'stop' on spring balances? prevents the spring from stretching beyond its elastic limit
Why would a spring balance without a stop give wrong readings for the weights of the masses hung from it if large masses were used? the string would is stretched so much until it remained slightly stretched. The spring had gone beyond a point called the elastic limit and is permanently deformed. The spring no longer extends in proportion to the mass, giving wrong readings
Created by: hamizah