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Oak National Academy
12 questions
A __________ is a rule linking sets of physical variables in context.
How many watts are in 1 kilowatt?
850 watts is equal to ___ kilowatts.
Which calculations would decrease 540 by 20%?
Substitute x=4.9 into the expression 24.5x + 60.
E = PH. Calculate the value of E when P = 0.35 and H = 3. Give the exact value, without rounding.
1250 watts is equal to...
A house has a set of 5 solar panels. Each panel produces 1.08 kWh of electricity per day. In total, the set of 5 panels produce ___ kWh of electricity per day.
A home owner spends £10 200 on solar panels. The panels save £1275 per year on electricity bills. How many years will it take for the annual savings to cover the cost of the solar panels?
In ideal conditions, a solar panel would generate 1.4 kWh of electricity per day. However, its performance is reduced so that it produces 30% less electricity. Therefore, it produces ___ kWh per day.
The average cost of electricity could be calculated as: 24.5 p per kWh consumed + 60 p daily standing charge. For a house that uses 8 kWh of electricity per day, the cost would be £___ per day.
The formula calculates the amount of electricity produced by a solar panel.A solar panel has a power rating of 450 watts.With 5 hours of peak sunlight, the panel produces ___ kWh of electricity.
