ELE Assessment Review

What kind of energy transformation is occurring when a battery-operated device is running?

chemical energy transforms to electrical energy

The power went out at my house and all I have to use for a light source is my emergency hand-crank generator flashlight! What energy transformations are occurring to make it work?

kinetic energy is transforming to electrical energy

How does electrical energy explain why some things keep going?

Electrical energy can serve as a replacement source for the energy that object is transferring to the surroundings.

I just had to plug my fan into the wall because it is super hot in the room! What energy transformations are occurring with this fan while it is running?

Electrical energy is transforming to kinetic energy

Why must I press a button or flip a switch on an electrial/battery operated device to get it to work?

It closes the circuit allowing the ELE to flow through the wires

My cordless power drill will not work unless I have a charged battery in it AND press the button. Why?

The battery is needed to close the circuit to allow the flow of electrons. The button provides kinetic energy to transform into electrical energy to make the drill spin.