Save
or

or

taken

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.

focusNode
Didn't know it?
click below

Knew it?
click below
Don't Know
Remaining cards (0)
Know
0:00
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

# Physics ch. 16-17

### Motion and force

TermDefinition
motion distance from another object is changing
reference point a place or object used for comparison
SI international system of units (metric system)
speed the distance an object travels in a certain amount of time
speed formula S=D/T
velocity speed and direction of an object
acceleration the process of increasing speed, decreasing speed or changing direction
acceleration formula A=final speed-initial speed/ time
force a push or a pull
newton the SI unit of measurement for force
unbalanced force causes an object to move
balanced force an object will not move because there is equal pressure applied in both directions
friction the force applied when two surfaces rub against each other
static friction friction that acts on an object that is not moving
sliding friction friction that occurs when two solid surfaces slide over each other
rolling friction friction that occurs when an object rolls across a surface
fluid friction friction that occurs when a solid object moves through a fluid
gravity a force that pulls objects towards each other
mass the measure of the amount of matter in an object
weight the measure of the gravitational force exerted on an object
free fall when the only force acting on an object is gravity
air resistance objects falling through air experience this type of fluid friction
terminal velocity the fastest something can fall
Inertia the tendency of an object to resist a change in motion
Newtons first law an object at rest will stay at rest and an object in motion will stay in motion unless acted upon by an outside force
Newtons second law force equals mass times acceleration
Newtons third law for every action there is an equal and opposite reaction
momentum formula momentum=mass x velocity
Law of conservation of momentum the total momentum does not change in a collision unless acted upon by an outside force.
Created by: Todd.devlieger

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:

• SPACEBAR - flip the current card
• LEFT ARROW - move card to the Don't know pile
• RIGHT ARROW - move card to Know pile
• BACKSPACE - undo the previous action

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