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Worksheet Electrical Power - part 1 Combined Science - Physics - Key ...
2.A TV has a power rating of 130 W and operates at 230 V. What current flows through it? 0.57 A 3.A microwave has a power rating of 800W and operates at 230V. Calculate the current flowing through the microwave. Give your answer to 2 significant figures 3.5 A 4.A loudspeaker has a current of 19mA flowing through it and it has a power ...
Worksheet 9.1 Electrical Power and Energy - WordPress.com
WS9.1 Electrical Power and Energy.docx 1 Worksheet 9.1 Electrical Power and Energy 1. A current of 5.0 A flows through a flashlight bulb when it is connected to 6.0 V. ... 22. A clothes dryer has a power rating of 4500 W. How long did it take to dry a load of laundry if electric power costs $0.09/ kW•h and the cost of using the dryer was $0. ...
Charge, Current, Voltage, Energy and Power Worksheet - Senpai Corner
and the current when the water heater is connected to a 240 V power supply. Q17. When an electrical kettle is connected to a 240 V power supply, 216 KJ of energy is dissipated in 5 minutes. Calculate a) the power of the electrical kettle b) the resistance of the heating element c) the current that flows when the 240 V supply is connected.
Electric Power Worksheet - Weebly
power. ‐ The unit of power is the watt (or kilowatt). So in units form. Electric power (watts)= current (amperes) x voltage (volts), where 1 watt = 1 ampere x volts. 1. What is the power when a voltage of 120 V drives a 2‐A current through a device?
Power - worksheet
1. Find the power of a lift that transfers 450 J of energy in 15 seconds. 30 W 2. An electric motor transfers 8000 J of energy in 2.5 seconds. Calculate its power. 3 200 W 3. A weightlifter gives a dumbbell 600 J of gravitational potential energy store in 1.2 seconds. What is the weightlifter’s power? 500 W 4.
Electrical Power Worksheet - JC Schools
Electrical Power Worksheet 1. How much power is used by a contact lens heating unit that draws 0.070 A of current from a 120 V line? 2. Find the resistance of a 1400 W microwave oven and a 150 W electric can opener which are designed to run on 120V? 3. An electric motor has a resistance of 0.25 Ω and produces 100 W of power.
Physics Worksheet Lesson 19 Electric Circuits - Physical Science
Physics Worksheet Electric Circuits Section: Name: Mr. Lin 4 48. Calculate the resistance R. Compound _____ 49. If the current for the 10 Ω resistor is 2 A, calculate the voltage V of the cell and the total current I. 3 50. Calculate the Power P 1, P 2, and total power P of the circuit. 51.
Chapter 13 Electrical Power Practice Worksheet P = I·V Electricity in ...
a. Calculate the power of the alarm clock in watts. b. Convert the power to kilowatts. c. Calculate the number of kilowatt-hours of electricity used by the alarm clock if it is left on for one year. d. Calculate the cost of using the alarm clock for one year if your town charges $ 0.15/kWh. 7.
Electrical Power and Energy Worksheet - thssscience.com
Electrical Power and Energy Worksheet 1) An 8.0 A current flows through a light bulb connected to a 6.0 V battery. a. What is the power of this bulb? b. How much energy will be used in 30 seconds? 2) A 600 W electric heater is connected to a 120 V outlet. a. What is the current that flows through the
Worksheet - Work and Power Problems - Erie City School District
Worksheet - Work & Power Problems I. Work A. Sample Problems: 1. F = 200 Newtons Formula: _____ ... If 68 W of power is produced in 18 seconds, how much work is done? 13. A set of pulleys lifts an 800 N crate 4 meters in 7 seconds. What power was used? Title: Worksheet - Work and Power Problems Created Date:
Physical Science Section 7.3 Practice Problems Name Period Electric ...
8. A microwave oven with a power rating of 1000 W is used for 0.4 h. How much electrical energy is used by the microwave? 9. A refrigerator operates on average for 8.0 h a day. If the power rating of the refrigerator is 800 W, how much electrical energy does the refrigerator use in one day? 10. A TV with a power rating of 400 W uses 0.6 kWh in ...
CURRENT ELECTRICITY - Mr. Fifield's Corner
Current Electricity Worksheet 5 Electric Energy, Electric Power And Electric Cost: File Size: 192 kb: File Type: pdf: ... Physics 3204 Review Sheet On Current Electricity.pdf: File Size: 74 kb: File Type: pdf: Download File. Powered by Create your own unique website with customizable templates.
22-2 Power and Energy - Trunnell's Physics
Physics P Worksheet 22.2 Power and Energy Worksheet 22.2 Power and Energy 1. A 60–W light bulb is operated for an average of 5 hours per day. a. How much energy does the bulb consume in joules each day? b. How much energy does the bulb consume in kilowatt–hours each day? c. How much energy does the bulb consume in kilowatt–hours each month?
Electrical Power Worksheet
The power of a machine is the amount of energy it transfers every second. A powerful machine transfers a lot of energy each second. You can work out the power of an electrical appliance using this formula: power = current voltage (W) (A) (V) The units for power are watts (W) – 1 watt is 1 joule of energy transferred per second.
Electricity Worksheets
The worksheets are available as PDF files, making them easy to access, download, and print for classroom or home use. Exploring the World of Electricity: Understanding the Power That Drives Our World. 1. What is Electricity? Understanding the Basics: Electricity is a form of energy resulting from the presence and flow of electric charge.
Electric Power Math Worksheet - TeachEngineering
The electric power consumed by a circuit with one light bulb is 6 W. The current in the circuit is 4 A. What is the voltage of the circuit? ... Electricity: Lesson 6, Bulbs & Batteries Side by Side Activity — Electric Power Math Worksheet Answers . Title: Electric Power Math Worksheet Author: University of Colorado at Boulder Created Date: 10 ...
Ohm's Law and Power Equation Practice Worksheet - Weebly
Ohm’s Law and Power Equation Practice Worksheet 12. If a blender is plugged into a 110 V outlet that supplies 2.7 A of current, what amount of power is used by the blender? ... A DC electric motor transforms 1.50 kW of electrical power into mechanical form. If the motor's operating voltage is 300 volts, how much current does it "draw" when ...
PHYSICS FIRST PRACTICE SHEETS - Fulmer's Physics
What is the power of the machine doing the work? 14. A machine uses a force of 200 newtons to do 20,000 joules of work in 20 seconds. Find the distance the object moved and the power of the machine. (Hint: A joule is the same as a Newton-meter.) 15. A machine that uses 200 watts of power moves an object a distance of 15 meters in 25 seconds ...
physics worksheet - electric charge, current, potential, energy & power
Physics worksheet – Electric charge, current, potential, energy & power (e = 1.60 ×10 −19 C) Q1 Write down the SI units for electric charge, current, potential, energy and power. Q2 2.00 ×10 16 electrons pass through a point in a circuit in 0.25 s. Calculate the electric current through the point.