Kategorier: Alle - motion - photosynthesis - gravity - sound

af Karman Sachar 2 år siden

305

Bill Nye The Science Guy dropping his pencil

Bill Nye's demonstration of dropping a pencil provides an insightful look into the principles of physics, particularly focusing on the transfer of energy and the forces at play. When an object is dropped, gravitational potential energy is converted into kinetic energy.

Bill Nye The Science Guy dropping his pencil

Bill Nye The Science Guy dropping his pencil

Sample Question: Mr. Nye dropped his pencil from the top of his head. The pencil dropped for 0.62 seconds and its final velocity was 6.15 m/s. The pencil also weighs 6 grams. How much work did the pencil do and what is the potential energy of the pencil?

Sound

travel through a Vacuum
Space
Vibration
Displacement of solid particles
Displacement of liquid particles
Soundwaves
Displacement of air particles

Transfer of energy

Almost all energy on Earth is transferred from the Sun.
Frictional forces
Law of conservation of mass
Principal used for solving problems
Energy can neither be created or destroyed

Energy

Heat Energy
The sun
Chemical Energy
Photosynthesis
Light Energy
A light bulb
Sound Energy
A trumpet
Electrical Energy
Television
Mechanical Energy
Common formula is TME = PE + KE

Subtopic

Gravitational Potential Energy

Elastic forces

Height

Gravity

Motion

Mass
Force (N)
Solid
Gas
Liquid

Matter

Acceleration

Work (J)

Distance travelled (m)

Kinetic Energy