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Which common kitchen tool functions based on the principle of a wedge to separate materials?
Which simple machine uses a grooved wheel and rope to lift heavy objects with reduced effort?
Which type of energy transformation occurs when a battery powers an electric device?
Which everyday observation illustrates the concept of friction reducing motion efficiency?
Which type of energy transformation occurs in a solar panel converting sunlight into usable electricity?
Which everyday application demonstrates the use of static electricity?
Which everyday material is a poor conductor of heat and is commonly used as cookware handles?
Which device converts electrical energy into light energy using a glowing filament?
Which everyday material is a good thermal insulator commonly used in winter clothing to retain body heat?
Which modern lighting technology is significantly more energy efficient than traditional incandescent bulbs?