Lesson 4 Vocab
Energy stored in the nucleus of an atom; released during nuclear reactions such as fission or fusion.
Nuclear Energy
The total potential and kinetic energy of all the particles in an object; related to heat and temperature.
Thermal Energy
A ball with a mass of 2 kg is moving at a speed of 3 m/s.
What is its kinetic energy?
9 J
Good quality
Virtue
A book with a mass of 2 kg is placed on a shelf 3 m high.
What is its gravitational potential energy?
60 J
The energy of an object has due to its motion, shape, position, or combination of these factors.
Mechanical Energy
Energy stored in the bonds of atoms and molecules; released during chemical reactions.
Chemical Energy
A dog weighing 4 kg runs at a speed of 2 m/s.
Find its kinetic energy.
8 J
Energy that results from the position or shape of an object.
Potential Energy
A rock with a mass of 5 kg is lifted to a height of 4 m.
Find its GPE.
200 J
A repeating disturbance or vibration that transfers energy from one place to another.
Wave
Energy caused by the movement of electric charges/ (electrons).
Electrical Energy
A bicycle and rider together have a mass of 10 kg and move at a speed of 5 m/s.
What is their kinetic energy?
125 J
The energy that an object possesses by virtue of being in motion.
Kinetic Energy
A ball with a mass of 6 kg sits on top of a ledge 2 m high.
What is its GPE?
120 J
A form of radiation kinetic energy that travels through space in waves.
Electromagnetic Radiation
A substance (solid, liquid, or gas) through which a wave travels.
Medium
A toy car with a mass of 3 kg moves at a speed of 6 m/s.
What is its kinetic energy?
54 J
The energy associated with objects that can be compressed or stretched.
Elastic energy potential
A ball with a mass of 6 kg sits on top of a ledge 2 m high.
What is its GPE?
100 J
The fixed point around which a lever rotates.
Pivot
The scientific law stating that energy cannot be created or destroyed; it can only change form. When one object loses energy, other objects must gain it.
Law of Conservation of Energy
A soccer ball with a mass of 1 kg is kicked at a speed of 8 m/s.
Find its kinetic energy.
32 J
A type of potential energy that is related to an object’s vertical position.
Gravitational Energy potential
A person lifts a 3 kg backpack onto a shelf 7 m high.
What is its GPE?
210 J