It is the measure of the amount of matter in an object.

• weight

• mass

• volume

• quantity

Answer explanation

The measure of the amount of matter in an object is referred to as mass. Weight is the force due to gravity on that mass, while volume measures the space an object occupies. Therefore, the correct answer is mass.

It is the distance travelled by the per unit in a stated direction.

• velocity

• speed

• acceleration

• thrust

Answer explanation

The question describes the distance traveled in a stated direction, which is defined as speed. Velocity includes direction but is not solely about distance, while acceleration and thrust refer to changes in speed or force.

The rate of change of the distance travelled per unit time in a stated direction

• velocity

• speed

• acceleration

• thrust

Answer explanation

Velocity is defined as the rate of change of distance travelled per unit time in a specific direction, making it the correct choice. Speed, on the other hand, does not consider direction, while acceleration refers to the change in velocity.

This law states that the force acting upon an object is equal to the product of the mass and acceleration of the object.

• Newton's 2nd Law of Motion

• Newton's 3rd Law of Motion

• Newton's 1st Law of Motion

• Energy Law

Answer explanation

This law, known as Newton's 2nd Law of Motion, states that the force on an object equals its mass multiplied by its acceleration (F=ma). This directly describes the relationship between force, mass, and acceleration.

When a force is applied to a body, several effects are possible. Which of the ff. effect CAN'T occur?

• the body rotates

• the body change direction

• the body increase its mass

• the body changes shape

Answer explanation

When a force is applied, it can cause rotation, change direction, or alter shape. However, a force cannot increase a body's mass, as mass is a property that does not change due to applied forces.

It is the reluctance of the object to change either its state of rest or uniform motion in a straight line.

• force

• friction

• inertia

• motion

Answer explanation

The statement describes inertia, which is the property of an object to resist changes in its state of rest or uniform motion. Therefore, the correct answer is inertia.

This law states that the energy cannot be created nor destroyed but only changes from one form to another.

• Energy Law

• Kinetic Theory of Matter

• Law of Conservation of Energy

• Boyle's Law

Answer explanation

The correct choice is the Law of Conservation of Energy, which states that energy cannot be created or destroyed, only transformed from one form to another. This principle is fundamental in physics.

This law states that all matter is made up of a large number of molecules which are in continuous motion.

• Boyle's law

• Kinetic Theory of Matter

• Law of Conservation of Energy

• Boyle's Law

Answer explanation

The Kinetic Theory of Matter explains that all matter consists of molecules in constant motion, which aligns with the statement in the question. Other options, like Boyle's Law, pertain to gas behavior, not molecular motion.

The lowest possible temperature that a substance can reach.

• freezing point

• absolute zero

• steam point

• threshold

Answer explanation

The lowest possible temperature a substance can reach is known as absolute zero, which is 0 Kelvin or -273.15°C. It represents a state where molecular motion stops, unlike the freezing point or steam point, which are specific to phase changes.

It is the amount of heat required to raise the temperature of 1 kg. of a substance by 1 degree C.

• calorie

• watt

• specific heat capacity

• joule

Answer explanation

The specific heat capacity is defined as the amount of heat needed to raise the temperature of 1 kg of a substance by 1 degree C. This distinguishes it from other terms like calorie, watt, and joule, which have different definitions.