Save
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

Force, mass, motion

QuestionAnswer
position An objects location in space
motion The change in its position during a specific amount of time. A rate
rate Motion is a rate
linear motion Where objects move along lines
displacement Describes the distance an object moves in a very specific direction.
Scalar quantity Using only the magnitude.
Vector quantity Both a magnitude and a direction
Velocity vs. speed Speed is described as distance per unit time, while velocity is the speed plus the direction along the path.
Speed formula Speed = d/t d = distance t = time
Units for speed m/s
Instantaneous rate Gives information about exact points in time
Average rate The average of how fast the car traveled in an hour
Velocity formula V = Final position - initial position / final time - initial time
Units for velocity m/s
Uniform motion A motion that has a constant rate
delta change in
slope formula rise over run
acceleration Change in velocity over time
deceleration Decreasing in speed
Acceleration formula Acceleration = final velocity - initial velocity / final time - initial time
Units for acceleration m/s2
force A push or pull on matter
newtons first law of motion States that an object at rest will remain at rest, and an object in motion will remain in motion.
Law of Inertia Also known as Newtons first law
inertia The tendency of an object to remain at rest or in motion
Frictional forces When a ball slows down and stops. Acts on the object in the opposite direction of motion
Static friction Force required to overcome inertia.
Kinetic friction Force required to keep an object moving at a constant speed.
Rolling friction Force required to keep an object rolling at a constant speed
Newton’s second law of motion The mathematical relationship between force, mass and acceleration.
Force formula F = ma
Force units For mass is kg and acceleration is m/s2
Newton’s third law of motion Every force or action there is an equal and opposite force or reaction.
Normal force A resistance force of matter interacting with matter.
Free body diagram A diagram that includes all forces acting on the obect
Quantum mechanics The physics of the smallest pieces of matter.
Relativistic mechanics Explains the physics of motion at speeds near the speed of lights. Defines the speed of line.
energy units Mass is the kilogram, speed is m/s
Energy formula Kg x m/s x m/s = kgxm2/s2
The four fundamental forces The gravitational force, the electromagnetic force, the weak nuclear force and the strong nuclear force
What does the universal law of gravity state? Every object in the universe puls on every other object, the more mass an object has, the greater its gravitational force (pull), the greater the distance between two objects the less attraction
Force of gravity formula Fg = G x m1xm2/r2
gravity units Mass is the kilogram, distance is the meter
Inverse square law The value obtained from the mass-distance infraction into units.
weight A measure of the force of gravity exerted on an object by the earth.
Free-fall acceleration Objects are pulled or accelerate toward the Earth at a rate of about 9.81 m/s2,
Weight formula Weight = mass x acceleration due to gravity (W = mg)
weight units G is the free fall of acceleration, with units of m/s2, mass is the kilogram
Electromagnetic force Is the force exerted by the electromagnetic field on any charged particle.
nucleons In the nucleus, protons and neutrons are both referred to as Nucleons. Held together by a force.
Nuclear force A result of the exchange of much smaller and more fundamental particles.
Strong nuclear force Holds the atomic nuclei together
Weak nuclear force Causes changes in the nucleus that results in radioactive decay, particularly beta decay
work When a force is applied over a distance
Work formula Work = force x distance
work units Force is the Newton (N), distance is the meter (m)
machine A device that does work.
Effort force The force exerted by a person or machine to move the object
Resistance force The force exerted by the object that opposes movement.
Inclined plane Allows you to overcome a large resistance force by applying a smaller effort force over a longer distance
fulcrum Supports and distributes weight.
lever The mechanical advantages of a lever comes from the length of the arms
Fixed pulley Immovable
Movable pulley More versatile, hangs from a rope attached at one end and the effort force is split.
Mechanical advantage How it can help a simple machine
power The rate at which energy is transferred
Power formula Power = work/time = force x distance/time
Units for power The watt
efficiency How efficient the machine is and how good it works
Efficiency formula Efficiency = Pout/Pin x 100%
Created by: brooklynwilliams
Popular Physical Science sets

 

 



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