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P1 - ENERGY

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Total cards: 10•Content version: v4•Public deck•Updated: 8/1/2026

Card preview (10)

#1
Front (Question)

What is the law of conservation of energy

Back (Answer)

Energy can’t be created nor destroyed, only transferred.

#2
Front (Question)

What is efficiency?

Back (Answer)

Useful output / total input

#3
Front (Question)

What is useful energy?

Back (Answer)

Transferred the way in which it’s wanted. For example, light energy from a lamp

#4
Front (Question)

What is wasted energy?

Back (Answer)

Not useful, i.e. heat from a lamp

#5
Front (Question)

What are the five energy transfers?

Back (Answer)

Sound Radiation Electrical Heat Mechanical

#6
Front (Question)

What are the eight energy stores?

Back (Answer)

Gravitational Potential Electrostatic Chemical Kinetic Magnetic Elastic Potential Nuclear Thermal

#7
Front (Question)

What is work?

Back (Answer)

Amount of energy transferred when a force moves.

#8
Front (Question)

Formula for kinetic energy

Back (Answer)

Ek = 1/2mv2

#9
Front (Question)

Formula for GPE

Back (Answer)

mgh

#10
Front (Question)

Cost of electricity

Back (Answer)

Power x time x unit cost Unit cost is watts per hour