Test-u8 Electricity and Magnesium

Question 1

43. Explain how lightning is created

Answer 1

Moving clouds create a build up of static electricity. Charge becomes so great it induced a positive charge on the ground. Attraction eventually becomes so strong e- travel to earth (in the bolt) to neutralize.

U8 C4 pg. 25 magnesium

Question 2

51. What does a circuit breaker do?

Answer 2

It bends the circuit

U8 C3 pg. 14 circuits

Question 4

53. Explain ferromagnetism

Answer 4

Phenomenon where objects placed in strong magnetic field becomes magnetized due to the poles within their atoms aligning (all e- in the same direction)

U8 C4 pg 25. Magnetism

Question 5

52. Explain what an electromagnet is

Answer 5

It is a temporary magnet that can be made by using the presence of strong magnetic fields or current

U8 C4 magnesium pg. 26

Question 6

Providing a path that allows electric charges to travel directly into the earth rather than traveling through a building

Answer 6

Grounding

U8 C1 pg 5. charge

Question 7

In a closed circuit containing one resistor and battery if the voltage in the battery increases, the current going through the resistor increases. Why does this occur?

Answer 7

As the electrons are pushed more by the battery, they move faster through the circuit.

U8 C3 pg 12. Circuits

Question 8

Which areas do electric charges always flow?

Answer 8

Negative to positive

U8 C1 pg 3. Charge