Transformations

The picture shows a light bulb attached to a hand generator. What energy transformation occurs as the handle of the generator is turned?

• thermal → solar → light

• solar → light → electrical

• mechanical → electrical → light

• electrical → mechanical → light

What is the energy transformation?

• Electrical to Electromagnetic

• Mechanical to Electrical

• Electrical to Thermal

• Kinetic to Sound

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-3

The Theory of the Conservation of Energy states -

• 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.

Tags

NGSS.MS-PS3-5

Which type of energy transformation occurs when a flashlight shines?

• chemical → thermal → electrical

• chemical → electrical → light

• thermal → chemical → light

• chemical → electrical → chemical

During photosynthesis, plants change ​ (a)   energy into ​ (b)   energy

• light

• chemical

• sound

• kinetic

• heat

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

Batteries have ​ (a)   energy that they change into ​ (b)   energy when plugged in

• chemical

• electrical

• kinetic

• sound

• light

• heat

A lamp that plugs into a wall socket draws energy which flows through a thin wire in the bulb causing it to glow. What energy transformations are taking place?

• chemical → light → electrical

• mechanical → sound → light

• thermal → solar → electrical

• electrical → thermal → light

Which of the following best describes the energy transformations that occur when a flashlight that runs on batteries is turned on?

• chemical → light → electrical

• electrical → light → chemical

• light → electrical → chemical

• chemical → electrical → light

Some students observing a classroom device being used, noticed the below energy transformations. 
Electrical → Mechanical → Sound
Which device were the students most likely observing?

• 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.

Which of these is an example of light energy being transformed into chemical energy?

• A glow stick lights up when broken.

• Water heated by the sun evaporates.

• A plant makes sugar in the sunlight.

• A battery causes a buzzer to vibrate.

Tags

NGSS.MS-LS1-6