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Laabri

Power calculations beta

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Last updated 10 months ago
14 Nsɛmmisa
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1.

A light bulb uses 120 joules of energy in 2 seconds. What is the power of the light bulb?

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2.

A microwave uses 450 joules of energy in 3 seconds. What is the power of the microwave?

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3.

A motor does 1,200 joules of work in 6 seconds. How much power does the motor produce?

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4.

An electric heater uses 2,000 joules of energy in 10 seconds. What is the power of the heater?

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5.

A fan consumes 900 joules of energy in 5 seconds. What is the power of the fan?

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6.

A heater uses 3 kJ of energy in 2 minutes. What is its power?

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7.

A microwave uses 4 kJ of energy in 2 minutes. What is its power?

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8.

A fan uses 2.4 kJ of energy over a period of 4 minutes. Calculate its power.

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9.

A motor uses 5 kJ of energy in 3 minutes. What is the power of the motor?

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10.

A laptop consumes 6 kJ of energy in 5 minutes. Find its power.

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11.

A blender uses 1.2 kJ of energy in 2 minutes. What is its power?

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12.

A drill operates with 9 kJ of energy over 3 minutes. Calculate its power.

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13.

8. A vacuum cleaner uses 15 kJ of energy in 10 minutes. What is its power?

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14.

9. A light bulb consumes 2.5 kJ of energy over 5 minutes. Calculate the power of the light bulb.