Energy Conservation

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
• Total Energy is always 0

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
• The total energy in the reaction is zero

Which energy transformation below matches?
A book falling to the ground?

• chemical to sound and heat
• kinetic to sound and heat
• electrical to sound and heat
• kinetic to potential

Which energy transformation below matches?
Water moving over a dam to move a generator?

• kinetic to chemical
• kinetic to electrical
• solar to electrical
• potential to electrical

What kind of energy
Stretched bow and arrow?

• kinetic
• elastic potential
• gravitational potential
• thermal energy

On a roller coaster, where is maximum potential energy?

• At the bottom of a big hill
• When going around a corner
• When going upside down
• At the top of a big hill

What do you need to add to kinetic energy in order to find an object’s mechanical energy?

• Kinetic Energy
• Gravitational Energy 
• Thermal Energy
• Potential Energy 

Tags

NGSS.MS-PS3-2

On a roller coaster, where is maximum kinetic energy?

• At the bottom of a big hill
• When going around a corner
• When going upside down
• At the top of a big hill

Tags

NGSS.MS-PS3-1

What force causes the carts to slow down?

• friction
• applying force
• gravity
• gravity and friction

________ is the energy possessed by an object because of its motion.

• Power
• Force 
• energy
• kinetic energy

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-5