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 review
all chapters
| Question | Answer |
|---|---|
| factor that changes as a result of changes in the other variables | dependent Variable |
| factor that as it changes, affects the measure of another variable | independent variable |
| in an experiment, a variable that does not changes when other variables change. | constant |
| standard used for comparison of test results in an experiment. | control |
| explanation of things or events that is based on knowledge gained from many observations and investigations | theory |
| statement about what happens in nature that seems to be true all the time does not explain why or how something happens | scientific law |
| rate of change of velocity can be calculated by dividing the change in the velocity by the time it takes the change to occur | Acceleration |
| a push or pull exerted on an object | Force |
| A tendency to do nothing or to remain unchanged: | inertial |
| the speed and direction of a moving object | Velocity |
| distance an object travels per unit of time | speed |
| first law of motion: a body remains at rest or in motion with a constant velocity unless acted upon by an external force. | newton's 1st law of motion |
| states that the acceleration of an object is in the same direction as the net force on the object, and that the acceleration equals the net force divided by the mass. | newton's 2nd law of motion |
| states that when one object exerts a force on a second object the second object exerts a force on the first object that is equal in strength and in the opposite direction | newton's 3rd law of motion |
| force that opposes the sliding motion between two toughing surfaces | Friction |
| energy a moving object has because of its motion; depends on the mass and speed of the object. | kinetic Energy |
| stored energy an object has due to its positions | potential energy |
| states that energy can never be created or destroyed | law of conservation of energy |
| sum of the potential energy and kinetic energy in a system | Mechanical Energy |
| machine that does work with only one movement---lever, pulley, wheel and axle, inclined plane screw, and wedge. | Simple Machine |
| machine that is a combination of two or more simple machines. | Compound Machine |
| ratio of the out put work done by the machine to the input work done on the machine, expressed as a percentage. | Efficiency |
| ratio of the out put force exerted by a machine to the input force applied to the machine | Mechanical Advantage |
| transfer of thermal energy by collisions between particles in matter at a higher temperature and particles in matter at a lower temperature | Conduction |
| transfer of thermal energy in a fluid by the movement of warmer and cooler fluid from one place to another | Convection |
| transfer of thermal energy by electromagnetic waves | Radiation |
| thermal energy that flows from a warmer material to a cooler material | Heat |
| material in which electrons are not able to move easily | Insulator |
| material such as copper wire, in which electrons can move easily | Conductor |
| measure of the average kinetic energy of all the particles in an object | Temperature |
| meters | Length |
| grams | mass |
| cubic meters | Volume |
| cubic centimeters | Density |
| Joules | Work |
| watts | Energy |
| newtons | force |
| mph | speed |
| mps squared | Acceleration |
| sec | Time |
| degrees Celsius kelvins | Temperature |
| A method of procedure that has characterized natural science since the 17th century, consisting in systematic observation, measurement | Scientific method |
Created by:
reaginicfiddle4
Popular Physical Science sets