Save
Upgrade to remove ads
Busy. Please wait.
Log in with Clever
or
show password
Forgot Password?
Don't have an account?  Sign up 
Sign up using Clever
or
Username is available taken
show password


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. Your email address is only used to allow you to reset your password. See 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
edit
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

Chapter 4 Sci sec 3

QuestionAnswer
True or False When two surfaces rub together, the irregularities of one surface get caught on those of other surface True
The force when something rubs on another thing Friction
Friction acts in a direction _______to the objects direction of motion Opposite
The strength of the force of friction depends on what two factors Types of surfaces involvedHow hard the surfaces push together
How is friction helfpul in helping you walk If you didn't have friction, you would slide across the floor
How does friction help an automobile work An automobile moves because theres friction between the tires and the road
What kind of friction is when an objedt moves through a fluid Fluid Friction
What kind of friction is when solid surfaces slide over each other Sliding Friction
What kind of friction is when an object rolls over a surface Rolling Friction
Which kind of friciton requires more force to overcome, rolling friction or sliding friction Sliding Friction
What kind of friction occurs when moving parts have ball bearings? Rolling Friction
How does oil between machine parts reduce friction The oil is there so they can pass each other with less friction
The force that pulls objects toward the Earth Gravity
When is an object said do be in a free fall When only one force is acting on it is gravity
Near the surface of Earth what is the accleration of an object due to the force of gravity 9.8 m/s2
An object that is thrown is called Projective
True/False An object that is dropped will hit the ground before an object that is thrown horizontally True
Objects falling through the air experience a type of fluid reaction called air resistance
True/False The greater the surface area of an object, the greater the air resistance True
Graph Graph pg 43
What is the greatest velocity a falling object reaches is called Terminal Velocity
What is weight The measure of the force of gravity on an object
What is Mass Mass is a measure of the amount of matter in an object
How is weight different than mass Weight is different because it measures the force of gravity on an object Mass is the among of matter in an object
Weight is measured in what? Newtons
True/False The force that makes an apple fall to the ground is the same force that keeps Earth orbiting the sun True
What says that the force of gravity acts between all objects in the universe The Universal Law of Gravitation
True/False On the moon, your mass would be less that it is on Earth False
The force of attraction between two objects varies with what two factors Mass @ Distance
How is weight measured
Created by: sshatch
 

 



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