Energy and Systems

What is energy?

• The weight of something

• The ability to make things move or change

• A kind of food

• Only electricity

Which picture shows evidence that energy is present?

• A backpack sitting still

• A dark lamp

• A fan spinning

• A book on a shelf

Which is a system?

• One wheel

• A bicycle with all its parts working together

• A single pedal

• A lone handlebar

What kind of energy comes out of a lamp when it’s on?

• Sound

• Light

• Motion

• Food

A radio/music player converts electrical energy into mostly...

• Motion energy

• Thermal energy

• Light energy

• Sound energy

The classroom fan uses electrical energy to make…

• Light energy

• Motion energy

• Chemical energy

• Gravitational energy

Tags

NGSS.MS-PS3-5

When you rub your hands together fast and they feel warm, energy changed from…

• Sound → Light

• Motion → Thermal

• Thermal → Motion

• Light → Sound

Tags

NGSS.MS-PS3-5

A toaster mainly converts electrical energy to…

• Motion

• Thermal (heat)

• Sound

• Gravitational

Tags

NGSS.MS-PS3-3

Which device is not an energy converter?

• Candle

• Streetlight

• Statue

• Computer

The input energy for most classroom devices we plug in is…

• Thermal

• Motion

• Electrical

• Gravitational