Energy Transformations and Heat Transfer

The moving blades of a windmill capture mechanical energy which is transferred to _____ energy from the generator inside.

• Solar

• Mechanical

• Electrical

• Potential

What transfer of heat is responsible for cooking the chicken?

• radiation

• convection

• electrical

• conduction

Tags

NGSS.MS-PS1-4

Which of the following shows the correct order of the energy transformations that occur when green plants produce their food from the Sun’s energy?

• chemical to thermal

• light to chemical

• thermal to light

• chemical to electrical

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

A television works by transforming electrical energy into what other kinds of energy?

• Light, thermal, and sound

• Thermal, chemical, and solar

• Sound, mechanical, and electrical

• Light, chemical, and mechanical

Walking on the warm sand sand with your bare feet demonstrates this type of heat transfer. 

• conduction

• convection

• radiation

What is mechanical energy?

• Stored energy that is released when the nucleus of atoms are split apart or fused together.

• The energy formed due to an object's motion, position or condition. It is both kinetic and potential.

• The energy due to the movement of atoms or molecules that make up an object. This energy moves from warmer objects to colder objects.

• The energy from the sun carried by electromagnetic waves. It can move through empty space (no matter needed).

Which items would have this energy transformation: kinetic energy -> sound energy?

• turning on a flashlight

• nuclear power plant

• windmill turning

• playing a violin

As the ball is dropped, the potential energy decreases while the kinetic energy increases however the amount of energy stays the same.

• True

• False

Tags

NGSS.MS-PS3-5

NGSS.MS-PS3-1

NGSS.MS-PS3-2

Before fruit falls from a tree, how does energy flow?

• Potential - Kinetic - Sound

• Light - Kinetic - Heat

• Potential - Sound - Heat

• Solar - Kinetic - Heat

Tags

NGSS.MS-PS3-5

NGSS.MS-PS3-1

NGSS.MS-PS3-2

NGSS.MS-PS3-4

Which type of energy transformation occurs when a flashlight shines?

• chemical → thermal → electrical

• chemical → electrical → light

• thermal → chemical → light

• chemical → electrical → chemical