P6 Science · Chapter 6brightbit.net/worksheets

Energy Conversion

Name: ______________________Class: ________Date: ____________Score: ____ / 5

1.
A solar panel converts sunlight into which form of energy?
(a) Chemical energy(b) Electrical energy(c) Kinetic energy(d) Sound energy
2.
When you rub your hands together, kinetic energy is converted to —
(a) Light energy(b) Electrical energy(c) Heat energy(d) Sound energy
3.
In a hydroelectric power station, the energy conversions in sequence are —
(a) Kinetic → Potential → Electrical(b) Potential → Kinetic → Electrical(c) Electrical → Kinetic → Potential(d) Chemical → Kinetic → Electrical
4.
A battery-powered torch converts energy in this order:
(a) Light → Chemical → Electrical(b) Chemical → Electrical → Light(c) Electrical → Chemical → Light(d) Kinetic → Electrical → Light
5.
Why is no energy conversion 100% efficient?
(a) Energy is destroyed in every conversion(b) Some energy is always lost as heat or sound (wasted)(c) Energy conversions only work in one direction(d) Useful energy increases at each conversion

Answer key — P6 Science: Energy Conversion

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