Question

name
date
classifying potential or kinetic energy
various forms of energy can be classified as being either a potential energy source or a kinetic
energy source. classify the phrases in the word box as examples of potential or kinetic energy.
standing at the top of a slide
throw a curve ball
book on a high shelf
wind up for the pitch
a battery
a speeding car
juice in an orange
frog leaping into the water
execute a swan dive
move downhill in a roller coaster
book falls from a high shelf
a parked car
roll down a grassy hill
move down a slide
an unburned lump of coal
frog sitting on a lily pad

Explanation:

Potential energy is stored energy based on position or state. Kinetic energy is energy of motion.

• Standing at the top of a slide: Position gives potential energy.
• Wind up for the pitch: Stored (potential) in the wind - up.
• Juice in an orange: Chemical potential.
• Move downhill in a roller coaster: At height (potential before moving, but here we focus on the state of being at a position for potential).
• Roll down a grassy hill: At height (potential).
• An unburned lump of coal: Chemical potential.
• A battery: Chemical potential.
• Book on a high shelf: Position (potential).
• Frog sitting on a lily pad: Position (potential).
• Throw a curve ball: Motion (kinetic).
• Frog leaping into the water: Motion (kinetic).
• Book falls from a high shelf: Motion (kinetic).
• Move down a slide: Motion (kinetic).
• A speeding car: Motion (kinetic).
• Execute a swan dive: Motion (kinetic).
• A parked car: No motion (but if we consider classification strictly on the given phrases, parked - no motion (but in the context of the activity, if it was moving before parking, but the phrase is “a parked car” - no kinetic. However, in energy classification, if it's just parked, no motion. But in the context of the worksheet, maybe it's a trick. But based on energy of motion:
• Throw a curve ball: Kinetic.
• Frog leaping into the water: Kinetic.
• Book falls from a high shelf: Kinetic.
• Move down a slide: Kinetic.
• A speeding car: Kinetic.
• Execute a swan dive: Kinetic.

Answer:

Potential Energy: standing at the top of a slide, wind up for the pitch, juice in an orange, move downhill in a roller coaster, roll down a grassy hill, an unburned lump of coal, a battery, book on a high shelf, frog sitting on a lily pad.
Kinetic Energy: throw a curve ball, frog leaping into the water, book falls from a high shelf, move down a slide, a speeding car, execute a swan dive.