PE and KE Spiral Review

Match the scenario to the type of potential energy represented.

Groups:

(a) Gravitational

,

(b) Chemical

,

(c) Elastic

,

(d) Electric

• • 
    A positively charged particle is slowly moved away from a strong, negatively charged plate

• A battery sits in an iPod before the iPod is turned on.

• The string of a bow and arrow is pulled tight.

• A man at a carnival lifts a hammer high over his head before swinging it down onto a pad

This model shows a ball being shot from the cannon. Which of these statements accurately describes the energy of the cannonball? Select ALL that apply.

• The kinetic energy is lowest at point E.

• The potential energy is lowest at point E.

• The kinetic energy is greatest at point C.

• 
  The potential energy is greatest at point C.

• 
  The ball changes from kinetic to potential energy at point A.

The roller coaster is your favorite ride! But the line is always long! Having just studied potential and kinetic energy in physics, you evaluate the energy changes of the cars as they move on the tracks. Compare the potential energy of the cars if they are stopped at points A to point D.

• Neither have potential energy.

• The potential energy is the same.

• Potential energy is greatest at point D.

• Potential energy is greatest at point A.

At what point on the hill will the car have zero gravitational potential energy?

• Half-way down the hill.

• At the top of the hill.

• 
  At the bottom of the hill.

• It will never have zero gravitational potential energy

What do you know about the law of conservation of energy? Check the two statements that are true according to this law

• The total amount of mass in a system remains constant regardless of the changes that take place in that system.

• 
  Energy is neither created or destroyed; it only changes form.

• In this energy pyramid, all the energy from each level is transferred to the next level.

• In a closed system, i.e., a system that isolated from its surroundings, the total energy of the system is conserved.