Question

1. complete the table by providing at least one example of how the following activities relate to each big concept.

table with columns: system/activity, energy input, energy transfer or transformation, energy output; rows: playing guitar (energy input: plucking a string), jumping on a trampoline, swinging, burning a match

Explanation:

To solve this, we analyze each activity for energy input, transfer/transformation, and output:

Playing Guitar

• Energy Input: Plucking a string (given, mechanical energy from hand).
• Energy Transfer/Transformation: Plucking the string transfers mechanical energy to the string, causing it to vibrate. The vibrating string transfers energy to the air (sound waves) and the guitar body (amplification).
• Energy Output: Sound (acoustic energy from vibrating strings/body).

Jumping on a Trampoline

• Energy Input: Leg muscles contracting (chemical energy from food converted to mechanical energy to push down on the trampoline).
• Energy Transfer/Transformation: Mechanical energy from the jump compresses the trampoline (elastic potential energy). The trampoline then transfers elastic potential energy back as mechanical energy to launch you upward.
• Energy Output: Movement (kinetic energy) as you bounce, and sound (from the trampoline stretching/slapping).

Swinging

• Energy Input: Pushing off the ground (mechanical energy from leg muscles) or pulling the rope (mechanical energy from hands) to start/keep the swing moving.
• Energy Transfer/Transformation: Mechanical energy (push/pull) is transferred to the swing, converting to kinetic energy (movement) and potential energy (height). As the swing moves, energy transfers between kinetic (at the bottom) and potential (at the top) forms.
• Energy Output: Movement (kinetic energy) of the swing, and sound (from the chain/rope moving).

Burning a Match

• Energy Input: Striking the match (mechanical energy to create friction) or the chemical energy in the match head (phosphorus, sulfur compounds).
• Energy Transfer/Transformation: Friction (mechanical energy) ignites the chemical energy in the match head, which transforms into thermal (heat) and radiant (light) energy via combustion.
• Energy Output: Heat (thermal energy) and light (radiant energy) from the flame.

We can summarize this in the table:

System/Activity	Energy Input	Energy Transfer or Transformation	Energy Output
Jumping on a trampoline	Leg muscles (chemical → mechanical)	Mechanical energy → elastic potential energy (trampoline) → kinetic energy (bounce)	Movement (kinetic energy), sound
Swinging	Pushing/pulling (mechanical energy)	Mechanical energy → kinetic/potential energy (swing motion)	Movement (kinetic energy), sound
Burning a match	Striking (mechanical) or chemical	Chemical energy → thermal (heat) + radiant (light) energy (combustion)	Heat (thermal), light (radiant)

This analysis uses concepts of energy transfer (movement of energy) and transformation (changing energy form), core to physics (Natural Science subfield) and energy science.

Answer:

To solve this, we analyze each activity for energy input, transfer/transformation, and output:

Playing Guitar

• Energy Input: Plucking a string (given, mechanical energy from hand).
• Energy Transfer/Transformation: Plucking the string transfers mechanical energy to the string, causing it to vibrate. The vibrating string transfers energy to the air (sound waves) and the guitar body (amplification).
• Energy Output: Sound (acoustic energy from vibrating strings/body).

Jumping on a Trampoline

• Energy Input: Leg muscles contracting (chemical energy from food converted to mechanical energy to push down on the trampoline).
• Energy Transfer/Transformation: Mechanical energy from the jump compresses the trampoline (elastic potential energy). The trampoline then transfers elastic potential energy back as mechanical energy to launch you upward.
• Energy Output: Movement (kinetic energy) as you bounce, and sound (from the trampoline stretching/slapping).

Swinging

• Energy Input: Pushing off the ground (mechanical energy from leg muscles) or pulling the rope (mechanical energy from hands) to start/keep the swing moving.
• Energy Transfer/Transformation: Mechanical energy (push/pull) is transferred to the swing, converting to kinetic energy (movement) and potential energy (height). As the swing moves, energy transfers between kinetic (at the bottom) and potential (at the top) forms.
• Energy Output: Movement (kinetic energy) of the swing, and sound (from the chain/rope moving).

Burning a Match

• Energy Input: Striking the match (mechanical energy to create friction) or the chemical energy in the match head (phosphorus, sulfur compounds).
• Energy Transfer/Transformation: Friction (mechanical energy) ignites the chemical energy in the match head, which transforms into thermal (heat) and radiant (light) energy via combustion.
• Energy Output: Heat (thermal energy) and light (radiant energy) from the flame.

We can summarize this in the table:

System/Activity	Energy Input	Energy Transfer or Transformation	Energy Output
Jumping on a trampoline	Leg muscles (chemical → mechanical)	Mechanical energy → elastic potential energy (trampoline) → kinetic energy (bounce)	Movement (kinetic energy), sound
Swinging	Pushing/pulling (mechanical energy)	Mechanical energy → kinetic/potential energy (swing motion)	Movement (kinetic energy), sound
Burning a match	Striking (mechanical) or chemical	Chemical energy → thermal (heat) + radiant (light) energy (combustion)	Heat (thermal), light (radiant)

This analysis uses concepts of energy transfer (movement of energy) and transformation (changing energy form), core to physics (Natural Science subfield) and energy science.