Energy Transformations Video Review

What is your First Name, Last Name, and class period number ?

ex. Obi-Wan Kenobi 1

Which Law was just described in the video ?

• Newtons 3rd Law of Action-Reaction

• The Law of Conservation of Mass

• The Law of Conservation of Energy

• Newton's 1st Law of Inertia

When a ukulele is strummed, what type of energy transformation takes place?

• Kinetic → Light

• Kinetic → Sound

• Electrical → Kinetic

• Chemical → Heat

When a light bar or lightbulb is switched on, electrical energy is transformed into

• Kinetic + Sound

• Chemical + Heat

• Light + Heat

• Gravitational + Elastic

What energy transformation occurs when a match is struck?

• Kinetic → Elastic

• Chemical + Kinetic → Light + Heat

• Electrical → Sound

• Gravitational → Kinetic

When a drawn bow is released, the ...

• elastic potential energy is transformed into kinetic energy

• kinetic energy is transformed into light energy

• Light energy is transformed into elastic potential energy

• elastic potential energy is transformed into electrical energy

What happens when an electric kettle is switched on?

• Gravitational → Kinetic

• Chemical → Light

• Kinetic → Sound

• Electrical → Thermal (Heat)

As a roller coaster rolls down the track ________ transforms to __________.

• gravitational

  potential --> electrical energy energy

• gravitational

  potential --> elastic energy energy

• gravitational

  potential --> kinetic energy energy

• gravitational

  potential --> light energy energy

Pressing an electric doorbell transforms ​ ​ ​

• electrical energy into kinetic + sound

• gravitational energy  into chemical energy

• gravitational energy into light energy

• electrical energy + light energy into gravitational potential energy

• elastic potential energy into electrical energy

Using a drill to secure a screw transforms

• Electrical → Kinetic + Heat

• Chemical → Light

• Electrical + Gravitational → Elastic

• Kinetic → Sound