What is the unit of frequency?

Which property of a body is measured by the amount of matter it contains?

Which effect describes the emission of electrons from a metal surface when light of sufficient frequency falls on it?

Which type of energy transformation occurs in a solar panel?

What is the term for the minimum energy needed to remove an electron from a metal surface?

What is the name of the force that holds protons and neutrons together inside the nucleus?

What type of lens is used to correct short-sightedness (myopia)?

Which law states that planets move in elliptical orbits with the sun at one focus?

Which of the following best describes nuclear fission?

What is the term for a material that allows electric current to pass through easily?

Which law relates the force between two electric charges to the distance between them?