Which particles in an atom have no electric charge?, A. Electrons, B. Protons, C. Neutrons, D. Ions, Where are protons and neutrons located in an atom?, A. In the electron cloud, B. In the nucleus, C. Outside the atom, D. In the electric field, Why are most atoms electrically neutral?, A. They have more electrons than protons, B. They contain only neutrons, C. The number of protons equals the number of electrons, D. Electrons are neutral, What happens when an object loses electrons?, A. It becomes negatively charged, B. It becomes positively charged, C. It becomes neutral, D. It gains neutrons, What happens when an object gains electrons?, A. It becomes positively charged, B. It becomes neutral, C. It becomes negatively charged, D. It loses protons, What is the force between charged particles or objects called?, A. Magnetic force, B. Electric force, C. Gravitational force, D. Nuclear force, Why do two electrons repel each other?, A. They are neutral, B. They both have positive charges, C. They both have negative charges, D. They lose energy, In general, how do opposite charges behave?, A. They repel, B. They attract, C. They disappear, D. They become neutral, How does the distance between charges affect electric force?, A. Force becomes stronger as distance increases, B. Force becomes weaker as distance decreases, C. Force becomes weaker as distance increases, D. Distance has no effect, What happens to electric force when more charge is present?, A. It becomes weaker, B. It becomes stronger, C. It disappears, D. It stays the same, What is an electric field?, A. A visible energy wave, B. A region where gravity is strong, C. A region around a charged object where electric force is exerted, D. A type of magnetic force, Electric field lines around a negatively charged object point ________ the object., A. Away from, B. Toward, C. Around, D. Above, What do electric field lines around a positively charged object do?, A. Point toward the object, B. Point away from the object, C. Form circles, D. Disappear, What happens to the potential energy of a system when two opposite charges are pulled apart?, A. It decreases, B. It stays the same, C. It increases, D. It disappears, The force between opposite electric charges is ________., A. Repulsive, B. Attractive, C. Neutral, D. Magnetic, What happens to gravitational potential energy when you lift an object higher above the ground?, A. It decreases, B. It increases, C. It disappears, D. It becomes negative, When opposite charges are allowed to move toward each other naturally, what happens to the electric potential energy of the system?, A. It increases, B. It stays the same, C. It decreases, D. It doubles, Two like charges naturally ________ each other., A. Attract, B. Repel, C. Cancel, D. Combine, Is an outside force needed to move two like charges apart?, A. Yes, B. No, C. Only sometimes, D. Only if they are large, As like charges move away from each other, what happens to the system’s electric potential energy?, A. It increases, B. It stays the same, C. It decreases, D. It becomes zero, Electric potential energy increases when ________., A. Opposite charges move closer together, B. Opposite charges move farther apart, C. Like charges move closer together, D. Like charges lose electrons, What is electric current?, A. Stored electrical energy, B. The continuous flow of electric charge, C. The stopping of electric charges, D. A type of wire, Electric current is measured in units called:, A. Volts (V), B. Watts (W), C. Amperes (A), D. Ohms (Ω), An ampere measures the:, A. Total energy in a battery, B. Amount of charge that passes a point each second, C. Length of a wire, D. Strength of a magnet, A circuit is best described as:, A. A straight wire connected to a battery, B. A path that runs in a loop, C. A device that stores electricity, D. A switch that turns power off, In a basic electric circuit, current flows:, A. Only from the battery to the device, B. From the device to the battery only, C. From the source, through the device, and back to the source, D. In random directions, Voltage is defined as:, A. The total current in a wire, B. The difference in electric potential energy per charge, C. The speed of electrons, D. The size of a battery, Voltage is measured in:, A. Amperes (A), B. Watts (W), C. Ohms (Ω), D. Volts (V), A charge in a circuit is compared to:, A. A magnet near metal, B. Water in a river, C. An object in Earth’s gravitational field, D. Heat from the Sun, When an object falls, gravity pulls it from:, A. Lower potential energy to higher potential energy, B. Higher potential energy to lower potential energy, C. High temperature to low temperature, D. Low resistance to high resistance, Inside a battery, chemical energy is converted into:, A. Heat energy, B. Mechanical energy, C. Electric energy, D. Sound energy, The electric energy in a battery becomes the ______ of the charges., A. Resistance, B. Potential energy, C. Temperature, D. Mass, The charges that flow through a circuit are:, A. Protons, B. Neutrons, C. Electrons, D. Ions, The direction of conventional current is:, A. The same as the direction of electron flow, B. Opposite to the direction of electron flow, C. Random, D. Toward the battery only, Materials that do NOT allow charge to flow easily are called:, A. Conductors, B. Circuits, C. Insulators, D. Batteries, Materials with high resistance to electric current are:, A. Good conductors, B. Insulators, C. Superconductors, D. Energy sources, Which of the following is a conductor?, A. Rubber, B. Wood, C. Glass, D. Copper, Which group contains only insulators?, A. Silver, Copper, Gold, B. Rubber, Wood, Glass, C. Gold, Wood, Silver, D. Copper, Rubber, Gold, Most charged objects eventually lose their charge to:, A. The ground, B. Water, C. The air, D. Metal, The shock you may feel when petting a cat is an example of:, A. Electric current, B. Resistance, C. Static discharge, D. Voltage.

Electric Force

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