Physical Science

1. a closed, conducting path
5. can be used to represent an idea, object, or event hat is too big , too small , complex , or too dangerous to observe or test directly
6. total distance an object travels divided by the total time it takes to travel that distance
9. sum of the kinetic and potential energy of the particles in an object; is transferred by conduction, convection, and radiation.
11. distances and direction of an objects change in position from starting point
12. international system of units
15. states that charge can be transferred from one object to another but cannot be crated or destroyed
18. resistance of an object to a changes in motion
19. force that opposes the sliding motion between two touching surfaces

2. explanation of things or events that is based on knowledge gained from many observation and investigations
3. induction process in which electric current is produced in a wire loop changing magnetic field
4. study of the relationship between thermal enegry ,heat,and work
7. application of science to help people
8. in an experiment , a variable that does not change when other variables change
10. a device that uses an electromagent to measure electric current
12. organized set of investigation procedures that can include stating a problem,forming a hypothesis, researching and gathering information,testing a hypothesis,analyzing data , and drawing conclusions.
13. transferred of thermal energy by collisions between partials in matter at a higher temperatures and particles in matter at a lower temperature
14. machine that is a combination of two or more simple machines
16. states that the acceleration of an object is the same direction as the net force on the object, and the acceleration equals the net force divided by the mass.
17. temporary magnet made by wrapping a wire coil, carrying a current , around on iron core