Physics

    Master this deck with 35 terms through effective study methods.

    Physics scheme

    Created by @adetiwa

    What is electric charge?

    Responsible for electrical attraction and repulsion.

    What are the types of electric charges?

    Positive charge comes from protons; negative charge from electrons.

    What does the law of charges state?

    Like charges repel, unlike charges attract.

    How is charging by friction achieved?

    Rubbing two materials transfers electrons.

    What is charging by conduction?

    Direct contact between charged and neutral objects.

    What is charging by induction?

    Charging without contact, involving earthing.

    What distinguishes conductors from insulators?

    Conductors allow charge flow; insulators do not.

    What is a capacitor used for?

    Storing electrical energy.

    What is electrostatics?

    The study of charges at rest.

    What does a gold leaf electroscope do?

    Detects charge and determines its type.

    What causes lightning?

    Build-up of charges in clouds.

    What is a lightning conductor?

    Safely conducts charge to the earth.

    What is a field in physics?

    A region where a force acts.

    What is an electric field?

    Region where electric force is experienced.

    What does electric field strength depend on?

    Force and charge.

    What is potential difference?

    Work done per unit charge.

    What defines electric current?

    Flow of electric charge (electrons).

    What does Ohm's Law state?

    Current is directly proportional to voltage.

    What is resistance?

    Opposition to the flow of current.

    What happens in a series circuit?

    Same current flows; if one fails, all stop.

    What is a parallel circuit?

    Same voltage across components; more reliable.

    What is the unit of electrical power?

    Watts (W).

    What is matter?

    Anything that occupies space and has mass.

    What are the states of matter?

    Solid, liquid, gas.

    What is atomic number?

    Number of protons in an atom.

    What is mass number?

    Sum of protons and neutrons.

    What is elasticity?

    Ability to return to original shape.

    What does Hooke's Law state?

    Force is proportional to extension.

    What is the elastic limit?

    Point where material stops returning to original shape.

    What does Young's Modulus measure?

    Stiffness of a material.

    What is a fluid?

    A substance that can flow.

    What is density?

    Mass per unit volume of a substance.

    What is pressure in liquids?

    Depends on density, gravity, and height.

    What is surface tension?

    Causes water to form droplets.

    What is viscosity?

    Resistance to flow of a fluid.