Energy and Electrical Quantities Worksheet



Energy and Electrical Quantities Worksheet

1) It requires 40,000 joules of energy and 100 newtons of force to move the space shuttle from the hanger to the launch pad. What is the distance from the hanger to the pad?

2) How much energy does it take to push the Saturn Five rocket booster 200 meters with a steady force of 800 newtons?

3) What is the efficiency of a toaster oven that uses 2000 joules of electric energy to produce 500 joules of heat energy?

4) How much heat energy is produced in a furnace that requires 1500 joules of energy and is 25% efficient?

5) How long does it take 20 coulombs to leave the negative terminal of a battery if the current provided by the battery is 5.0 A?

6) What is the voltage of a battery that has a potential energy of 27,000 joules and has a stored charged of 3000 C?

7) What is the resistance, at 20(C, of a electric motor winding that uses 26000cm of brass conductor which is 0.25 centimeter square (cm^2)? Look in Appendix D in your book for the resistivity of brass.

8) What is the power rating of an amplifier that converts 3000 joules of energy in 1 minute?

9) How long would a clock radio operate that required 100,000 joules of energy with a power rating of 100 watts?

10) What is the efficiency of an official NASA laptop computer that requires 8 W of electric power to deliver 1.2 W of power output?

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