Grade 7 Physics Quiz

What is the kinetic theory of matter?

• Matter is made up of particles that are not in constant motion.

• All particles of matter are in constant motion.

• Particles of matter only move when a force is applied to them.

• Matter is stationary and does not move at all.

According to the kinetic theory of matter, what happens to the particles in a substance when it is heated?

• The particles change color.

• The particles gain kinetic energy and move faster.

• The particles lose kinetic energy and move slower.

• The particles disappear.

How does the kinetic theory of matter explain the behavior of gases?

• The kinetic theory of matter explains that gases are made up of particles that are attracted to each other and form a solid.

• The kinetic theory of matter explains that gases are made up of particles that move in a predictable pattern.

• The kinetic theory of matter explains that gases are made up of particles that are stationary.

• The kinetic theory of matter explains that gases are made up of particles that are in constant, random motion.

What are the three common states of matter?

• round, square, and triangle

• solid, liquid, and gas

• solid, liquid, and plasma

• hot, cold, and warm

What are the characteristics of a solid?

• No shape or volume, weak intermolecular forces, loosely packed particles

• Definite shape and volume, strong intermolecular forces, closely packed particles

• Liquid state, no intermolecular forces, particles far apart

• Gas state, indefinite shape and volume, no intermolecular forces

How do particles behave in a liquid?

• Particles in a liquid move in a straight line

• Particles in a liquid are fixed in place

• Particles in a liquid repel each other

• Particles in a liquid are able to move past each other

What is thermal energy?

• The energy stored in the nucleus of an atom

• The energy generated by the Earth's magnetic field

• Internal energy of an object due to the kinetic energy of its atoms and/or molecules

• The energy produced by the movement of tectonic plates

How does temperature relate to thermal energy?

• Temperature is a measure of the average kinetic energy of the particles in a substance, while thermal energy is the total kinetic energy of all the particles in a substance.

• Temperature is a measure of the potential energy of the particles in a substance, while thermal energy is the total energy of all the particles in a substance.

• Temperature and thermal energy are completely unrelated and have no impact on each other.

• Temperature is a measure of the total kinetic energy of the particles in a substance, while thermal energy is the average kinetic energy of the particles in a substance.

What is the difference between heat and temperature?

• Heat is the transfer of energy, while temperature is the measure of the average kinetic energy of particles.

• Heat is the measure of the average kinetic energy of particles, while temperature is the measure of the total energy in a system.

• Heat is the measure of the average kinetic energy of particles, while temperature is the transfer of energy.

• Heat and temperature are the same thing.

What is a phase change?

• Transition of a substance from one state of matter to another

• The transformation of energy from one form to another

• The process of changing the color of a substance

• The change in the moon's appearance throughout the month