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5-7-Physics Review
Transfer, Sound and Thermal Energies
Question | Answer |
---|---|
What is a system? | Objects that work together |
In a system, when the energy in one object decreases, the energy in another part | Increases |
Thermal energy is | the total kinetic energy of an object's molecules due to their random motion. |
The factors of thermal energy are | Mass and Temperature |
When an object emits sound... | it loses some of its energy to the surroundings |
When two balls are bounced with one on the top of the other, the bottom ball | bottom ball's energy decreases |
Why does an object stop? | All energy has been transferred out. |
The particles in a warm object move ___________ than the particles in a "cold" object | faster |
Potential energy is | stored energy that results from the position or shape of an object |
Sound transports by | oscillating like a wave through medium (material) |
The states of matter that sound can travel through are | solids, liquids and gasses. |
Sound energy travels the most efficiently through | Solids |
Dolphins and Bats are alike because they | use echolocation to find their prey. |