Here are some examples:

Answer: Average power is defined as the ratio of total work done by the body to the total time taken by the body.

Therefore, the power required is 980J/s. The correct option is D. Note: Power which is the product of force and velocity is called instantaneous velocity power, and average power is force times average velocity.

• Blend 200 smoothies.
• Microwave 21 frozen burritos.
• Trim 3 miles of weeds.
• Make 60 quarts of ice cream.
• Keep cool with 20 hours of a ceiling fan.
• Binge watch 3 hours of television on a plasma TV or 6 hours on an LCD TV.
• Blow-dry 20 heads of hair.
• Toast 160 slices of bread.

50 kwh in one day is a lot. All the small electrical appliances are meaningless in that total. Even a fridge is only going to use a couple of kwh per day. So 2 long showers would use close to 20 kwh right there.

Let’s say you have a 60-watt incandescent lightbulb and you are paying 12 cents per kWh of energy. Leaving the bulb on the whole day will therefore cost you: 0.06 (60 watts / 1000) kilowatts x 24 hours x 12 cents = approximately 20 cents in one day.

A 3 bedroom house is considered to be a medium energy usage household which means that based on Ofgems current figures for average energy usage means that a typical medium energy user consumes 12,000 kWh of Gas and 2,900 kWh of electricity.

1 or 2 bedroom house/flat – gas usage of 8,000kWh and an electricity usage of 1,800kWh. 3 or 4 bedroom house – gas usage of 12,000kWh and an electricity usage of 2,900kWh. 5+ bedroom house – gas usage of 17,000kWh and an electricity usage of 4,300kWh.

What Uses the Most Energy in Your Home?

• Cooling and heating: 47% of energy use.
• Water heater: 14% of energy use.
• Washer and dryer: 13% of energy use.
• Lighting: 12% of energy use.
• Refrigerator: 4% of energy use.
• Electric oven: 3-4% of energy use.
• TV, DVD, cable box: 3% of energy use.
• Dishwasher: 2% of energy use.

15 Ways to Lower Your Energy Bill in 2020

1. Check seals on windows, doors and appliances.
2. Fix leaky ductwork.
3. Give your thermostat a nudge.
4. Adjust your fridge and freezer temperature.
5. Take shorter showers.
6. Replace your showerhead.
7. Don’t wash clothes in hot water.
8. Fix leaky faucets.

The energy costs of plugged-in appliances can really add up, and unplugging these devices could save your up to $100 to $200 a year. Another benefit of unplugging your appliances is protection from power surges.

Here’s a breakdown of the biggest energy use categories in the typical home:

• Air conditioning and heating: 46 percent.
• Water heating: 14 percent.
• Appliances: 13 percent.
• Lighting: 9 percent.
• TV and Media Equipment: 4 percent.

And even if a hacker were to dismantle a meter, they wouldn’t get any useful information. So they’re not connected to the internet, they’re designed by GCHQ and they hold information on your energy consumption only. Not only are smart meters hard to hack, there would be no point doing it anyway.

There is no obligation to have a smart meter installed and it is up to the consumer whether they agree to have one or not. It said a consumer can ask for a smart meter to be removed at any time, but a supplier could levy a charge for the cost of the switch – although it admitted it hadn’t heard of this happening.

Although smart meters can help you keep track of your energy use, they could also drive up anxiety with elderly or low-income households if they’re constantly reminded of what they’re spending. This could lead to people depriving themselves of adequate heating or lights.

But there will not be a legal obligation on individuals to have one. Energy companies will be required to install smart meters and take all reasonable steps to reach everyone. However energy companies will not take legal action to fit a smart meter if they cannot get the householder’s co-operation.

If you pay the bills and they’re addressed to you, you don’t need your landlord’s permission to get smart meters fitted. If your gas and electricity is included in your rent and your landlord receives the bills, your landlord will need to organise the installation.

The good news is smart meters are not dangerous and are perfectly safe for your health.