Energy transfer revision

What does the Law of Conservation of Energy state?

• energy is always created, but not destroyed

• energy cannot be created or destroyed

• energy cannot be created, but can be destroyed

• energy is always being created and destroyed

Tags

NGSS.MS-PS3-5

Which action below is converting electrical to thermal energy?

• An electric vacuum cleaner

• An electric toothbrush

• An electric toaster

Energy of motion is

• potential energy

• kinetic energy

• elastic energy

• chemical energy

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-5

______________________ occurs when energy changes from one form to another.

• Energy transformation

• Energy transfer

• Energy balance

• Energy equilibrium

Tags

NGSS.MS-PS3-4

NGSS.MS-PS3-5

_______________________ is stored energy to position or arrangement of particles in an object.

• Kinetic energy

• Potential energy

• Thermal energy

• Electrical energy

Tags

NGSS.MS-PS3-2

The energy transformation that takes place when a flashlight is turned on is...

• Chemical - electrical - light
• Chemical - light - electrical
• Electrical - thermal - light
• Nuclear - light - electrical

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 → thermal
• light → chemical
• thermal → light
• chemical → electrical

Tags

NGSS.MS-LS1-6

NGSS.MS-LS1-7

What energy transformation occurs in an overhead speaker?

• electrical ---> sound

• mechanical ---> sound

• chemical ---> potential

• kinetic ---> sound

What energy transformation occurs in a pencil sharpener?

• electrical ---> chemical

• chemical ---> mechanical

• electrical ---> mechanical

• mechanical ---> thermal

What energy transformation occurs in a telephone?

• mechanical ---> electrical

• chemical ---> mechanical

• solar ---> sound

• electrical ---> sound