Chapter 6, Section 3

Question 1

Vocabulary

What is a series circuit?

Answer 1

An electric circuit with only one branch

When any part of a series circuit is disconnected, there is no current through the circuit

Question 2

Vocabulary

What is a parallel circuit?

Answer 2

An electric circuit with more than one branch

Devices on each branch can be turned on or off seperately

Question 3

Question

What is the equation for electrical power?

Answer 3

P = IV
Power (W) = Current (A) * Voltage Difference (V)

Question 4

Vocabulary

What is electrical power?

Answer 4

The rate at which electrical energy is converted to another form of energy

Question 5

Question

What is the equation for electrical energy?

Answer 5

E = pt

Electrical Energy (kWh) = Electrical Power (kW) * Time (h)

Question 6

Question

What are examples of safety devices that prevent circuits from overheating?

Answer 6

Fuses- Contain a small piece of metal on the interior that melts if the current becomes too high. This causes a break in the current and stops it.

Circuit Breakers- When the current becomes too great, a switch flips and opens, which stops the current.