C165 Integrated Physical Sciences - Set 4 - Part 2

Correct Answer: Inertia

Inertia is the property of an object that resists changes to its state of motion unless acted upon by an external force.

Correct Answer: The pressure increases

According to Boyle's Law, the pressure of a gas increases as its volume decreases if the temperature is held constant.

Correct Answer: The sun

The sun is the primary source of energy for life on Earth, providing the energy necessary for photosynthesis and warming the planet.

Correct Answer: Weathering

Weathering is the process of breaking down rocks into smaller pieces through physical or chemical means, such as wind, water, or chemical reactions.

Correct Answer: K

The chemical symbol for potassium is K, derived from its Latin name "kalium."

Correct Answer: Law of Conservation of Energy

The Law of Conservation of Energy states that energy can neither be created nor destroyed, only transformed from one form to another.

Correct Answer: The tilt of Earth's axis

Earth's seasons are caused by the tilt of its axis, which results in varying angles of sunlight hitting different parts of the planet throughout the year.

Correct Answer: Solid

Solids have a definite shape and volume because their particles are closely packed and vibrate in fixed positions.

Correct Answer: Atom

An atom is the smallest particle of an element that retains the chemical properties of that element.

Correct Answer: Photosynthesis

Photosynthesis is the process by which plants convert light energy, carbon dioxide, and water into glucose and oxygen.

Correct Answer: Ultraviolet rays

Ultraviolet (UV) rays are used to sterilize medical equipment by killing bacteria and other pathogens.

Correct Answer: Density

Density is the amount of matter per unit volume, often expressed as mass divided by volume.

Correct Answer: Kelvin

The SI unit for temperature is the kelvin (K), which is used in scientific measurements of temperature.

Correct Answer: Mars

Mars is known as the "Red Planet" due to the presence of iron oxide (rust) on its surface, which gives it a reddish appearance.

Correct Answer: Kinetic energy

Kinetic energy is the energy an object possesses due to its motion. The faster an object moves, the more kinetic energy it has.

Correct Answer: Conduction

Conduction is the process of heat transfer through direct contact between particles, such as when a hot object touches a cooler one.

Correct Answer: Air pressure decreases

As altitude increases, the density of air decreases, which results in lower air pressure.

Correct Answer: Sulfur dioxide

Sulfur dioxide, when released into the atmosphere, can react with water to form sulfuric acid, which contributes to acid rain.

Correct Answer: Neutron

Neutrons are subatomic particles found in the nucleus of an atom and have no electric charge.

Correct Answer: Air resistance

Air resistance is a type of friction that opposes the motion of objects as they move through the air.