Energy Transformations

Front

Device with energy transformations: Electrical → Mechanical → Sound

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 when green plants produce 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 -
Options: Energy can be created, just not destroyed. It changes its form from one type to another., Energy can never be created nor destroyed. It can only change its form from one type to another., The total energy in our Universe changes, as different forms of energies can be transformed from each other under certain circumstances., Energy transformations do not passively occur in our lives, rather we actively make use of energies and transform energies.

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

Electrical Energy is transferred to _____ Energy.

Back

Thermal

Front

Kinetic Energy is transferred to _____ Energy.

Back

Potential

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.