3rd partial regularization test

What does the law of Coloumb study?

• Force of attraction or repulsion between charged particles
• The study of ancient civilizations
• The study of plant biology
• The study of ocean currents

Get the electric force between two charges of 5×10⁻⁹ C and −3×10⁻⁸ C which are separated by d = 10 cm.

Remember K = 9x10^-9

Mathematical Equivalence

ON

What's the unit of measure of electric charge?

• The unit of measure of electric charge is Watt (W).
• The unit of measure of electric charge is Volt (V).
• The unit of measure of electric charge is Ohm (Ω).
• The unit of measure of electric charge is Coulomb (C).

What is temperature?

• Temperature is a measure of the distance between two points.
• Temperature is a measure of the average kinetic energy of the particles in a substance.
• Temperature is a measure of the amount of water vapor in the air.
• Temperature is a measure of the brightness of a light source.

What's heat?

• Heat is the form of energy that is transferred between systems or objects with different temperatures.
• Heat is the weight of an object
• Heat is the sound produced by friction
• Heat is the color of an object

What's the difference between heat and temperature?

• Heat is the energy transferred between objects due to a temperature difference, while temperature is a measure of the average kinetic energy of the particles in a substance.
• Heat is the measure of the average kinetic energy of the particles in a substance, while temperature is the energy transferred between objects due to a temperature difference.
• Heat is the measure of the average kinetic energy of the particles in a substance, while temperature is the amount of energy contained in an object.
• Heat is the energy contained in an object, while temperature is the energy transferred between objects due to a temperature difference.

What's a chemical change?

• A chemical change is a process in which substances remain the same
• A chemical change is a process in which substances disappear completely
• A chemical change is a process in which one or more substances are converted into one or more different substances with different properties.
• A chemical change is a process in which substances change color but remain the same

What's a physical change?

• A physical change is a change in which the substance's chemical composition changes.
• A physical change is a change in which the substance disappears completely.
• A physical change is a change in which the substance turns into a completely different material.
• A physical change is a change in which the substance's physical appearance or state changes, but its chemical composition remains the same.

Organize these kind of energies, depending on their spectrum

Groups:

(a) Non-ionizing

,

(b) Ionizing

• Radio frequency

• Ultraviolet

• Microwave

• Gamma rays

• X-ray

• Infrared