Energy Changes

When you shout at a friend, you are changing mechanical energy into __________ form.

• sound

• electrical

• thermal

• chemical

When you set food under a heat lamp to warm it, you are changing radiant energy into __________ form.

• electrical

• nuclear

• thermal

• chemical

When you turn on a music player, you are using __________ form of energy to produce sound energy.

• light

• electrical

• nuclear

• thermal

Eating a healthy breakfast provides __________ form of energy, which is turned into mechanical and thermal energy as you play, study, and move.

• thermal

• nuclear

• elastic

• chemical

Plug in a fan to a source of electrical energy. The electrical energy is transformed into __________ form to move the fan blades.

• mechanical

• thermal

• chemical

• strain

Plug a lamp into an electrical socket and you turn electrical energy into __________ form of energy.

• light

• sound

• nuclear

• magnetic

Light energy from the sun is turned into __________ form when plants undergo photosysnthesis.

• elastic

• magnetic

• chemical

• thermal

As plants decompose, their chemical energy may become stored as coal or natural gas. These chemical energy sources can be turned into __________ form of energy as they are burned at a power plant.

• electrical

• thermal

• magnetic

• chemical

As fuel is burned at a power plant the energy released turns a turbine, whose movement is an example of __________ kind of energy.

• chemical

• mechanical

• thermal

• light

Energy leaves a power plant in the form of __________ kind of energy.

• light

• sound

• electrical

• thermal