Conservation of Energy Lesson Check

When you put on the brakes of a bicycle, friction causes some of the mechanical energy to transfer to thermal energy.

• True

• False

Tags

NGSS.MS-PS3-5

When you put on the brakes of a bicycle, friction causes some of the mechanical energy to transfer to thermal energy.

• True

• False

Tags

NGSS.MS-PS3-5

According to the law of conservation of energy, energy can be created or destroyed

• True

• False

Tags

NGSS.HS-PS3-1

NGSS.HS-PS3-2

In every energy transformation, some energy is always “lost” as ____ energy.

• chemical

• mechanical

• electrical

• thermal

Tags

NGSS.MS-PS3-4

NGSS.MS-PS3-5

According to the law of conservation of energy, the total amount of energy in the universe ____.

• changes constantly

• remains constant

• increases

• decreases

Tags

NGSS.MS-PS3-4

NGSS.MS-PS3-5

Work __________________energy

• reduces

• reflects

• transfers

• stops

Tags

NGSS.MS-PS3-4

NGSS.MS-PS3-5

Which equation is correct?

• mechanical energy = kinetic energy – potential energy

• mechanical energy = potential energy – kinetic energy

• mechanical energy = kinetic energy + potential energy

• mechanical energy = kinetic energy × potential energy

Tags

NGSS.MS-PS3-4

When two surfaces interact, some mechanical energy leaves the system as thermal energy due to ________.

• surrounding heat

• water

• friction

• fusion

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-3

NGSS.MS-PS3-5

Which of the following does NOT reduce friction?

• grease

• cotton

• oil

• graphite

A fire warms you by transferring __________________energy

• kinetic

• potential

• thermal

• mechanical

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-3

NGSS.MS-PS3-4