Name:______

Unit 2 Study Guide

Directions: show ALL work and circle ALL answers for FULL credit!

  1. Write I for current, V for Voltage, and R for resistance
  2. ______Measure in amperes
  3. ______Measured in ohms
  4. ______A flow of charge
  5. ______the rate at which charge passes a given point
  6. ______Measured in volts
  7. ______Opposition to the flow of electric charge
  1. Complete the following table, show work on the sides.

# / Voltage (V) / Current (A) / Resistance (R )
1 / 12 V / 30 Ω
2 / 3.8 A / 32 Ω
3 / 3 V / .002 A
4 / 120 V / .50 A
5 / 60 V / 72 Ω
6 / 36 V / 19 Ω
7 / 24 V / .001 A
8 / .16 A / 39 Ω
  1. Word Problems
  1. Three resistors are connected in series to a 18 V battery, with resistances of 3 Ω, 6 Ω and 9 Ω, what is the total resistance? What is the voltage across each resistor?
  1. A 24 V battery is hooked up in parallel to three resistors of 250 Ω, 150 Ω and 350 Ω, what is the total resistance in this circuit?
  1. Calculate the missing values

  1. Draw the following circuit and complete the calculations
  1. Two 3 V batteries, two 5 Ω LED lights and one closed switch in parallel.Solve for RT, IT, I1, I2,
  1. Work and Power Problems
  1. Amy uses 20N of force to push a lawn mower 10 meters. How much work does she do?
  1. Joe balances a stationary coin on the tip of his finger 20cm from the top of the table. How much work is Joe doing?
  1. Frank does 2400J of work in climbing a set of stairs. If he does the work in 6 seconds, what is his power output?
  1. Energy-Write a brief description about TWO forms of energy. Include their energy type (renewable, nonrenewable, inexhaustible).