Q: Answer the following question given this paragraph: The process of generating electric current with a changing magnetic field is called electromagnetic induction . It occurs whenever a magnetic field and an electric conductor, such as a coil of wire, move relative to one another. As long as the conductor is part of a closed circuit, current will flow through it whenever it crosses magnetic field lines. One way this can happen is pictured in Figure below . It shows a magnet moving inside a wire coil. Another way is for the coil to move instead of the magnet. Q: When you change a magnetic field through electromagnetic induction what do you create? A:

OPTIONS:
- cooling current
- microwave current
- Light Current
- electric current

A: electric current

Q: Answer the following question given this paragraph: When we consider a chemical reaction, we need to take into account both the system and the surroundings. The system includes the components involved in the chemical reaction itself. These will often take place in a flask, a beaker, a test tube, or some other container. The surroundings include everything that is not part of the system. When potassium reacts with water, part of the heat energy generated in the reaction is released into the surroundings. The boundary between system and surroundings is arbitrary, and it is generally chosen in a way that makes observations and calculations easier. Q: When we consider a chemical reaction, we need to take into account both the system and what? A:

OPTIONS:
- date
- fluctuations
- time
- sorroundings

A: sorroundings

Q: Answer the following question given this paragraph: Quantities have two parts: the number and the unit. The number tells "how many. " It is important to be able to express numbers properly so that the quantities can be communicated properly. Standard notation is the straightforward expression of a number. Numbers such as 17, 101.5, and 0.00446 are expressed in standard notation. For relatively small numbers, standard notation is fine. However, for very large numbers, such as 306,000,000, or for very small numbers, such as 0.000000419, standard notation can be cumbersome because of the number of zeros needed to place nonzero numbers in the proper position. Q: Quantities have two parts: the number (how many) and what else? A:

OPTIONS:
- the motion
- the member
- the credit
- he unit

A: he unit

Q: Answer the following question given this paragraph: Potential energy is energy that is stored in a person or object. Q: Energy that is stored in a person or object is called? A:

OPTIONS:
- vertical energy
- mechanical energy
- kinetic energy
- potential energy

A:
potential energy