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
semester 1
vocab
| Question | Answer |
|---|---|
| Dependent Variable | factor that changes as a result of changes in the other variables |
| Independent Variable | factor that as it changes it affects the measure of another variable |
| Constant | in an experiment, a variable that does not change when other variables change. |
| Control | standard used for comparison of test results in an experiment. |
| Theory | explanation of things or events based on knowledge gained from observations and investigations |
| Scientific Law | statement about what happens in nature that seems to be true all the time |
| Acceleration | rate of change of velocity |
| Force | push or pull exerted on an object |
| Inertia | resistance of an object to a change in its motion. |
| Velocity | the speed and direction of a moving object |
| Speed | distance an object travels per unit of time |
| Newton’s 1st Law of Motion | an object moving at a constant velocity keeps moving at that velocity unless an unbalanced |
| Newton’s 2nd Law of Motion | states that the acceleration of an object is in the same direction as the net force on the object |
| Newton’s 3rd Law of Motion | when one object exerts a force on a second object the second one exerts a force on the first that is equal in strength and opposite in direction |
| Friction | force that opposes the sliding motion between two touching surfaces |
| Kinetic Energy | energy a moving object has because of its motion |
| Potential Energy | stored energy an object had due to its position |
| Law of Conservation of Energy | states that energy can never be destroyed |
| Mechanical Energy | sum of the potential energy and kinetic energy in a system |
| Simple Machine | machine that does work with only one movement. |
| Compound Machine | machine that is a combination of two or more simple machines |
| Efficiency | ratio of the output work done by the machine to the input work done on the machine, expressed as as a percentage |
| Mechanical Advantage | ratio of the output force exerted by a machine to the input force applied to the machine |
| Conduction | transfer of thermal energy by collisions between particles in matter at a higher temp and particles in matter at a lower temp |
| Convection | transfer of thermal energy in a liquid by the movement of warmer and cooler fluid from one place to another |
| Radiation | transfer of thermal energy by electromagnetic waves |
| Heat | thermal energy that flows from a warmer material to a cooler material |
| Insulator | material in which electrons are not able to move easily or material in which heat flows slowly |
| Conductor | material in which electrons can move easily, like copper wire |
| Temperature | measure of the average kinetic energy of all the particles in an object |
| Length | m |
| Mass | kg |
| Volume | cubic centimeters |
| Density | grams per centimeters cubed |
| Work | joules |
| Energy | joules |
| Force | newton |
| Speed | meters per second |
| Acceleration | meters per second squared |
| Time | seconds |
| Temperature | kelvin |
| steps of the scientific method | state problem, gather info, form hypothesis, test hypothesis, analyze data, draw conclusion |
Created by:
Patti_lover20
Popular Physical Science sets