Complete each statement. 1. The surface of is often considered as an approximate inertial frame of reference. 2. A system that cannot interact or exchange energy with external systems is called a(n) 3. Sending excess electrons to Earth or moving electrons from Earth to an object known as 4. One of a set of lines drawn to indicate the strength and direction of magnetic field is a(n) 5. are the technology used to confine charged particles in a narrow beam in a linear accelerator. 3 Name: ID: A 6. Examples of technology that benefits from enhanced communication due to fibre optics include 7. The work done on an electron by 1V of electric potential is 8. This diagram shows the setup for a(n)