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Laabri

P2.8 Gravitational Energy Starter

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Last updated about 4 hours ago
9 Nsɛmmisa
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Asemmisa {{asɛmmisaAhyɛnsode}}
1.

Match units to uses

Draggable itemarrow_right_altCorresponding Item

Kilojoules (kJ)

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Standard unit of energy

Watts

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How energy in food is measured

Joules (J)

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How energy used by a home is measured

Kilowat t hours (kWh)

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Standard unit of power

Asemmisa {{asɛmmisaAhyɛnsode}}
2.

What is the unit of energy?

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3.

What is the unit of mass?

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4.

What is the name for the store of energy that we associate with foods?

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5.

A heater transfers 70 J in 1 s. What is its power rating?

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6.

What happens to the energy transferred if we increases the time a device is switched on for?

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7.

Water falls through a height of 5 m in hydroelectric power station A. It falls through a height of 10 m in hydroelectric power station B. Which one will generate the most power and why?

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8.

Energy is measured in Joules, but what is food measured in?

Asemmisa {{asɛmmisaAhyɛnsode}}
9.

What is the correct name for the apparatus we used to measure out a volume of water?