6 Energy Transfer

The ball has the most kinetic energy at the top because it is highest.

As the ball rolls down, gravitational potential energy transforms into kinetic energy.

The ball loses all its energy once it starts moving.

Potential energy increases as the ball moves faster down the hill.

Waves carry both energy and matter to new places.

Waves carry energy from one place to another without moving matter.

Waves trap energy in one spot and do not travel.

Waves only happen in water and cannot move through materials like air.

Sound is a mechanical wave that needs a medium like air to travel, and space is a vacuum.

Sound is an electromagnetic wave that can move through empty space easily.

Space blocks all waves, including mechanical and electromagnetic waves.

Sound can travel faster in a vacuum than in air, so it becomes too high-pitched to hear.

Correct, because sound waves are electromagnetic and can pass through a vacuum.

Incorrect, because sound waves are mechanical and cannot travel without a medium.

Correct, because mechanical waves move best through vacuums.

Incorrect, because electromagnetic waves cannot move through space.

Radios work because they convert sound to electromagnetic waves that can travel through space.

Radios fail because electromagnetic waves need air to move.

Radios only work underwater, not in space.

Radios amplify mechanical vibrations so they can pass through a vacuum.

Vibrations travel through the solid helmets acting as a medium.

Sound becomes electromagnetic inside helmets.

Space increases sound speed making it audible.

The vacuum amplifies the sound.

Sound is a mechanical wave that needs matter to vibrate.

Sound is an electromagnetic wave that can move through empty space.

Sound only travels in air and cannot move through water or solids.

Sound can travel faster in a vacuum because there is no resistance.

Talking inside a room filled with air.

Shouting underwater while wearing a waterproof microphone.

Ringing a bell in outer space where there is a vacuum.

Playing music through a solid metal rod.

Mechanical waves need matter; electromagnetic waves do not.

Both mechanical and electromagnetic waves need matter to move.

Electromagnetic waves are slower because they lack a medium.

Mechanical waves can move in a vacuum better than electromagnetic waves.

The table provides a solid medium that transmits vibrations.

The fork converts sound to electricity in the table.

The table removes particles, making sound travel farther.

The fork creates a vacuum where sound travels faster.