Energy Transformation

Front

Device with energy transformations: Electrical → Mechanical → Sound. Options: A triple beam balance measuring an object’s mass., A pencil sharpener plugged into a wall outlet., A projector displaying a diagram on the screen., A working flashlight used to light up a dark corner.

Back

A pencil sharpener plugged into a wall outlet.

Front

Which type of energy transformation occurs when a flashlight shines?

Back

chemical → electrical → light

Front

Energy transformations when water falls through a dam and turns a turbine connected to a generator.

Back

mechanical → electrical → light

Front

Energy transformations in a lamp that plugs into a wall socket and causes the bulb to glow.

Back

electrical → thermal → light

Front

Order of energy transformations in green plants producing food from the Sun's energy: chemical → thermal, light → chemical, thermal → light, chemical → electrical.

Back

light → chemical

Front

The Theory of the Conservation of Energy states -

Back

Energy can never be created nor destroyed. It can only change its form from one type to another.

Front

Solar Energy is transferred to _____ Energy. Options: Mechanical, Solar, Sound, Electrical

Back

Electrical

Front

Which of the following shows an energy transformation from chemical energy to electrical to light energy? Options: A bolt of lightning lights the night sky, A candle glows brightly in the dark, A fire in a fireplace lights up a room, A battery causes a flashlight to shine.

Back

A battery causes a flashlight to shine.

Front

Energy transformations when a student rapidly rubs palms together?

Back

chemical to mechanical to thermal

Front

A television works by transforming electrical energy into what other kinds of energy?

Back

Light, thermal, and sound