Energy
Gravity
Heat
The Atom
Nuclear Energy
100

The property of a system that enables it to do work.

What is energy?

100

Any object the moves through the air or through space under the influence of gravity

What is a projectile? 

100

A restatement of the law of conservation of energy , usually as it applies to thermal systems: whenever heat flows into or out of a system, the gain or loss of thermal energy equals the amount of heat transferred.

What is the 1st law of thermodynamics? 

100

An abbreviation for an element or atom

What is the Atomic Symbol?

100

The splitting of the nucleus of a heavy atom, such as uranium-235, into two main parts, accompanied by the release of much energy.

What is Nuclear Fission? 

200

The stored energy that a body possess because of its position.

What is potential energy? 

200

A projectile or small body that orbits a larger body

What is a satellite? 

200

Heat never spontaneously flows from a cold substance to a hot substance.

What is the 2nd law of thermodynamics? 

200

Any member of a set of atoms of the same element whose nuclei contain the same number of protons but different numbers of neutrons

What is an Isotope?

200

The combining of nuclei of light atoms to form heavier nuclei, with the release of much energy

What is Nuclear Fusion?

300

Energy of motion

What is kinetic energy? 

300

The curved path followed by a projectile near Earth under the influence of gravity only

What is a parabola? 

300

No system can reach a temperature of absolute zero.

What is the 3rd law of thermodynamics? 

300

An electron located in the outermost occupied shell in an atom that can participate in chemical bonding

What is a valence electron? 

300

High-frequency electromagnetic radiation emitted by the nuclei of radioactive atoms.

What is a Gamma ray? 

400

The product of the force and the distance through which the force moves.

What is Work?

400

The proportionality constant in Newton's law of universal gravitation

What is the Universal Constant of Gravitation? 

400

The quantity of heat per unit of mass required to raise the temperature of a substance 1 degree Celsius.

What is specific heat capacity?

400

The time required for half the atoms in a sample of a radioactive isotope to decay

What is Half-life?

400

An electron (or positron) emitted during the radioactive decay of certain nuclei.

What is a beta particle? 

500

The time rate of doing work.

What is Power?

500

Every body in the universe attracts every other body with a mutually attracting force. For two bodies, this force is directly proportional to the product of their masses and inversely proportional to the square of the distance separating them: 

F=(GMm)/d2

What is the Law of Universal Gravitation? 

500

The measure of energy dispersal or spreading of energy in a system.

What is Entropy?

500

The conversion of an atomic nucleus of one element into an atomic nucleus of another element through a loss or a gain in the number of protons

What is Transmutation? 

500

The nucleus of a helium atom, which consists of two neutrons and two protons, ejected by certain radioactive elements.

What is an alpha particle?

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