Test: Mass, Weight & Density - Year 11 MCQ

Mass represents the amount of matter an object possesses when observed at rest. It is a scalar quantity and is typically measured in units like kilograms (kg). Objects with greater mass exhibit increased resistance to changes in speed, deceleration, or alteration of trajectory.

The equation W = mg represents the relationship between an object's weight (W), its mass (m), and the acceleration due to gravity (g). Weight is the gravitational force exerted on an object with mass. This equation shows that weight is directly proportional to mass when considering the acceleration due to gravity.

The standard International System of Units (SI) unit for mass is the kilogram (kg). Mass is a fundamental property of matter, and the kilogram is used as the base unit for expressing mass in the metric system.

Density is calculated by dividing the mass of an object by its volume. The formula Density = Mass / Volume is used to determine the density of a material in kilograms per cubic meter (kg/m³) when the mass and volume are known.

Weight is the consequence of gravitational interaction with mass on an object. It is described as the force applied to an object due to gravitational attraction and is measured in newtons (N) in the standard unit system.

Weight is expressed in units of newtons (N). Weight is a force that represents the gravitational force exerted on an object with mass and is measured in newtons in the International System of Units (SI).

Upthrust is the force that pushes objects upward when they are submerged in fluids like liquids and gases. It opposes the weight of the object and acts in the opposite direction, affecting whether an object will float or sink in a fluid.

The standard value for gravitational field strength on Earth is approximately 9.8 N/kg. This value represents the force per unit mass acting on an object in a gravitational field.

The weight of an object equals the result of multiplying its mass by the acceleration due to gravity. The equation is represented as Weight = Mass x Acceleration due to gravity.

Density is defined as the mass per unit volume of a material. It represents how much mass is present in a given volume of a substance and is typically measured in units like kilograms per cubic meter (kg/m³).

Mass is the property of an object that opposes alterations in its motion. Objects with greater mass exhibit increased resistance to changes in speed, deceleration, or alteration of trajectory.

Density is determined by the relationship between mass and volume. It is expressed as the mass of a substance per unit volume and is indicative of how much matter is packed into a given space.

The formula for calculating density using the mass and volume of an object is Density = Mass / Volume. This formula helps determine how tightly packed the matter in an object is based on its mass and volume.

When mass is in grams and volume is in cubic centimeters, density is expressed in grams per cubic centimeter (g/cm³). This unit reflects how much mass is present in a given volume of a substance.

Weight is the property of an object that is directly proportional to the acceleration due to gravity. The weight of an object is determined by multiplying its mass by the acceleration due to gravity, making it directly related to gravity's strength.