Help
Options
Didn't know it?
click below
click below
Knew it?
click below
click below
Don't Know
Remaining cards (0)
Know
retry
shuffle
restart
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
Normal Size Small Size show me how
Forces&Interactions
| Question | Answer |
|---|---|
| acceleration | a change in the velocity (speed, direction, or both) of a body |
| unbalanced forces | push or pull on an object that is not subject to an equal and opposite push or pull |
| balanced forces | when two equal forces are applied to an object in opposite directions, the object does not move |
| force | mass x acceleration= a pull or push that is applied to an object |
| newton | the SI unit of force. It is equal to the force that would give a mass of one kilogram an acceleration of one meter per second per second |
| action force | movement; something that happens |
| reaction force | response to an action force; equal and opposite |
| mass | the amount of matter in an object |
| Newton's First Law | a body remains at rest, or moves in a straight line at a constant speed, unless acted upon by an outside force. |
| Newton's Second Law | the acceleration of an object is proportional to the force acting upon it |
| Newton's Third Law | for every action there is an equal and opposite reaction |
| velocity | the speed and direction of an object's motion |
| magnitude | size of ground movement caused by seismic waves due to energy released |
| gravity | a force that exists between any two objects that have mass |
| air resistance | comes when an object moves through the atmosphere. At slower speeds, it is negligible, but at higher speeds, it can become significant. |
| vacuum | an area in which there is no matter |
| laws of motion | Newton developed three laws of motion. They are considered laws not theories because he found them to be true, but could not explain why. |
| thrust | a reaction force that pushes an object forward |
| drag | resistance by friction from air or water moving over a surface |
| weight | the force of gravity on an object |
| Aristotle | leader in scientific thinking ; proposed that a force must be constantly applied to an object to keep it moving |
| Isaac Newton | improved on Aristotle's idea about motion adding information about inertia |
| variable | a quantity or condition that can be changed in an experiment |
| kinetic energy | the energy an object has because of its motion |
| potential energy | the amount of energy that is stored in an object; energy that an object has because of its position relative to other objects |
| heat energy | when potential energy is converted into kinetic energy, some of that energy is always in the form of: |
| joules | a unit of measurement of energy |
| motion | a change of position in an object |
| gravitational potential energy | energy stored due to position in a gravitational field; commonly due to Earth's gravity |
| chemical potential energy | amount of chemical energy stored in a substance |
| elastic potential energy | The force that resists a change in shape |
| electric potential energy | The force between electrically charged particles that are moving |
| nuclear potential energy | Even the tiny nucleus of an atom has potential energy. When atomic nuclei split, they release lots of energy. |
| net force | sum of all the forces acting on an object. |
| vector | quantity having both magnitude and direction. |
| opposing forces | two forces acting against each other |
| rate of acceleration | depends on the mass of the object and the force applied to it |
| friction | a force that opposes the motion of a body across a surface or through a gas or liquid |
| push | to press on an object for the purpose of moving it |
| tension | quantity having both magnitude and direction. |
| magnetic force | the action between two magnetic poles |
| electric force | Electric forces involve the attractive or repulsive force between two charged particles or objects. |
| contact forces | are forces that occur with an object being in contact with another. include frictional force, tension force, normal force, air resistance force, applied force, and spring force. |
| non-contact forces | invisible forces that do not require objects to be in contact. Examples include gravity, electric forces, and magnetic forces. |
| normal force | the force from the ground that pushes back on the gravitational force. |
| spring potential energy | The force exerted by a stretched or compressed coil on an object attached to it |
| applied force | is a force that comes from another object, like a person pushing a cart. |
Created by:
ledee.workman
Popular Physical Science sets