Energy Transformations

Check the types of energy transformation we see when we use an electric keyboard. (2)

• electrical energy

• sound energy

• chemical energy

• nuclear energy

Check the types of energy transformation we see when we use a hot air balloon. (3)

• chemical energy

• thermal energy

• mechanical energy

• electrical energy

Tags

NGSS.MS-PS3-3

NGSS.MS-PS3-4

NGSS.MS-PS3-5

Check the types of energy transformation we see when we use a hairdryer. (3)

• mechanical energy

• thermal energy

• electrical energy

• chemical energy

Fuel

• chemical energy

• thermal energy

• mechanical energy

• sound energy

Tags

NGSS.MS-PS3-5

When energy enters a system and then comes out of the system later, the law of conservation of energy states that–

• some of the energy that entered the system will remain in the system.

• the energy will always create a change in the properties of the parts of the system.

• the form of energy that comes out of the system must be the same form that entered.

• the amount of energy coming out of the system must equal the energy that entered the system.

Tags

NGSS.MS-PS3-4

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

• Chemical → light → electrical

• Mechanical → sound → light

• Thermal → solar → electrical

• Electrical → thermal → light

Tags

NGSS.MS-PS3-3

NGSS.MS-PS3-4

Energy of moving parts

• electrical

• chemical

• mechanical

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-5

Microwave

• sound energy

• radiant energy

• chemical energy

• mechanical energy

Tags

NGSS.MS-PS4-2

What energy transformation occurs when an oven is powered on?

• Electrical -->Thermal
• Thermal --> Electrical
• Chemical -->Electrical--> thermal
• Electrical --> chemical 

Tags

NGSS.MS-PS1-4

Sound energy

• potential energy

• kinetic energy

• both

Tags

NGSS.MS-PS4-1