Introduction:
Many people in the world already have a mobile phone. You need a phone to make calls, chat, email and be on social media. Apps are required to perform these tasks. You need gigabytes to download and buy apps. And actually isn’t it tedious (mühsam) to pay more for a phone just to have more gigabytes to download more apps? Wouldn’t it be more interesting and better to have just one app for everything? It seemed very cool for us. That’s why we decided to create a app and would like to bring you closer to the whole thing. More...
Hello students!
Task 8 (team of 2): Find the right solution to the energy calculations (comment writing), due date 23 March, 8 PM
Video: Olympic Cyclist vs. Toaster (youtube.com)
Full article: Protecting nature by bike (dontwastemy.energy)
NEXT WEEK - Get ready for the Online Quiz Challenge
=>Check out the Energy Concepts material (See VZ19A Program & Tasks)
Team: Devin Stettler, Luca Napolitano, Jan Tall
A single-family household has to pay a base fee of 20 CHF a month for their energy. For each kWh which they used, they have to pay 0.19 CHF.
More...
Team: Zeynep and Nicole
How many kWh will a television use per year?
Try to find out the solution with the following information: More...
For my Post i took the energy consumption of a toaster which is used 5 minutes a day as an example. A toaster needs 0.074 kwH per day if it is used 5 minutes a day. This makes 7 Francs in a year. The power consumption is about 900 Watts.
How many kwH will a toaster use per year?
How much energy does a vacuum cleaner need, if it has the following data:
Power consumption: 1600 watts
Usage per day: 30 minutes
This makes 0.8 kWh/day.
How many kWh will it use per year?
by Seraina and Anna
General information
The simple definition for power is P = E / t
E = energy
P = power (watts)
T = time
A 1000 watts is 1 kW. If you use a device that consumes 1 kW for one hour, you have used 1 kWh (kilowatthours). That is the unit an electricity company will bill you with.
If we consider 1 kWh costs CHF 0.20, how much does it cost you to run a 2000 W oven for 45 min?
Written by Kolja and Michael
For our post we choosed a regulare dishwasher. 1000 watt is 1 kwh. The kilowatt-hour is a composite unit of energy equal to one kilowatt (kW) of power sustained for one hour
By Silvan and Luana
Team: Nina + Elena
How much kWh does our class (24 students) consume if every student works with her/his laptop during the 3 (hours) T&U lessons? And how much does it cost?
Try to solve the calculation with these numbers:
Device: laptop
Power: 60 kWh
Duration: 72h (24 students x 3h)
Electricity price: 0.22 cents for 1 kWh
Team: Sangeetha & Yllza
power consumption: 1500 watts
usage per day: 10min (for example)
This makes 0.1 kWh/day
How many kWh will it use if you use the hair dryer for 24hours?
A laptop has always been used for 3 hours a day. It used 50 Watts = 0.15 kwh per day. The costs for 1kwh is 0.20 Francs
Now because of the corona virus we have to use the laptop for 7 hours a day. How many kilowatt hours per day is that and how much does it cost per day?
You can find the solution on the one note.
Team: Lucas and Sandro
