Question

1. what type of energy is stored due to an objects position, condition, or chemical composition?

a. kinetic energy
b. potential energy
c. thermal energy
d. electrical energy

1. what kind of energy does a moving object have?

a. potential energy
b. kinetic energy
c. chemical energy
d. sound energy

1. in a pogo stick, where is the energy stored when the spring is compressed?

a. gravitational potential energy
b. elastic potential energy
c. kinetic energy
d. magnetic potential energy

1. what happens when the spring of a pogo stick expands?

a. energy is transferred back to the person
b. the spring gains potential energy
c. the system loses all energy
d. no work is done

1. what is the term for energy changing from one form to another within the same system?

a. energy transfer
b. energy transformation
c. energy conversion
d. work

1. when a glass falls from a table, what causes its potential energy to transform into kinetic energy?

a. an unbalanced force acts on it
b. it gains mass
c. the table moves
d. it loses gravity

Explanation:

1. Potential energy is energy stored due to position, condition, or chemical composition. Kinetic energy is of motion, thermal is heat - related, electrical is due to electric charge.
2. A moving object has kinetic energy. Potential is stored, chemical is in substances, sound is from vibrations.
3. When a spring is compressed in a pogo - stick, elastic potential energy is stored. Gravitational is due to height, kinetic is motion, magnetic is related to magnets.
4. When the spring expands, energy is transferred back (as it does work). The spring loses potential energy (doesn't gain), the system doesn't lose all energy, and work is done.
5. Energy changing form within a system is energy transformation. Transfer is between systems, conversion is similar but transformation is more common in basic terms, work is force - distance.
6. An unbalanced force (gravity) causes the glass to fall (potential to kinetic). Mass doesn't change suddenly, table moving isn't relevant, gravity doesn't disappear.

Answer:

1. B. Potential energy
2. B. Kinetic energy
3. B. Elastic potential energy
4. A. Energy is transferred back to the person
5. B. Energy transformation
6. A. An unbalanced force acts on it