Total Energy

At point 2 , what is the KE?

• 150 J

• 490 J

• 1470 J

• 1960 J

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-4

According to the Law of Conservation of energy, the amount of energy before and after a reaction must be the same. Which statement below is true?

• The total amount of energy is conserved

• The total amount of energy is less after a reaction

• The total amount of energy is more after a reaction

Tags

NGSS.MS-PS3-4

NGSS.MS-PS3-5

As energy transformations occur within a system, the total energy of the system ___.

• increases

• decreases

• is transferred out of the system

• remains constant

Tags

NGSS.MS-PS3-4

The Law of Conservation of Energy states:

• Energy can created or destroyed but not transformed 

• Energy cannot be created or destroyed, it can only transformed

• Energy can't be created, destroyed or transformed

Which specific type of energy is at point C?

• Potential Energy

• Kinetic Energy

• Mechanical Energy

• None

Tags

NGSS.MS-PS3-2

What kind(s) of energy is(are) in a person climbing a ladder?

• Potential

• Kinetic

• Both

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-2

NGSS.MS-PS3-5

As a pendulum swings from its highest to lowest position, what happens to its kinetic and potential energy? 

• The PE and KE increase and decrease together

• The PE decreases while the KE increases 

• Impossible to know without knowing the mass  

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-4

NGSS.MS-PS3-5

What states that energy can never be created or destroyed?

• law of conservation of momentum

• law of conservation of energy

• law of conservation of matter

• law of conservation of water

Tags

NGSS.MS-PS3-4

NGSS.MS-PS3-5

Which energy transformation below matches?
Burning coal or carbon-based fuel at a powerplant?

• chemical to heat to electrical

• mechanical to chemical to sound

• electrical to chemical to heat

Tags

NGSS.MS-PS3-4

NGSS.MS-PS3-5

What is the total energy of a system in terms of kinetic and potential energy?

• The sum of kinetic and potential energy

• The difference between kinetic and potential energy

• Only the kinetic energy

• Only the potential energy

Tags

NGSS.MS-PS3-5