Measurement Units And Prefixes

The base unit for length is the metre. The metre is a unit of measurement used to quantify distance or length. It is defined as the distance traveled by light in a vacuum in 1/299,792,458 of a second. The metre is widely used in the international system of units (SI) and is the standard unit for measuring length in most countries around the world.

The prefix "milli" is used to denote one thousandth of a base unit. Therefore, when the base unit is divided by 1000, it represents the value of the prefix "milli".

The prefix "centi" refers to a division by 100. It indicates that the unit being referred to is one hundredth of the base unit. For example, if the base unit is meter, then "centimeter" would be one hundredth of a meter. Therefore, the correct answer is "base unit ÷ 100".

The prefix "kilo" is used to denote a multiplication factor of 1000. Therefore, when the base unit is multiplied by 1000, it represents the meaning of the prefix "kilo".

One hectare is a unit of measurement for land area and is equal to 10,000 square meters. Since a square with sides of 100 meters has an area of 10,000 square meters, it is equivalent to one hectare. Therefore, the statement "one hectare is equivalent to a square of sides 100 m in length" is true.

The statement is true because 1 cm³ is equal to 1 mL, and 1 mL of water weighs 1 gram. This is because water has a density of 1 gram per milliliter. Therefore, 1 cm³ is equal to 1 gram of water.

To convert metres to centimetres, we multiply the number of metres by 100. In this case, 34 metres multiplied by 100 equals 3400 centimetres. Therefore, 34 metres is the same as 3400 cm.

To convert metres to millimetres, we multiply by 1000. Therefore, 34 metres is equal to 34,000 millimetres.

The density of water is 1 g/mL or 1 kg/L. Therefore, 1 L of water has a mass of 1 kg.

The prefix "Mega" is used to denote a factor of one million. Therefore, when applied to a base unit, it multiplies the base unit by 1,000,000.

The base unit for mass in the International System of Units (SI) is the kilogram (kg). The kilogram is defined as the mass of the International Prototype of the Kilogram, a platinum-iridium cylinder kept at the International Bureau of Weights and Measures in France. It is the standard unit of mass used for most scientific and everyday purposes.

The base unit for capacity is the litre. It is a metric unit of measurement for liquid volume. It is commonly used to measure the volume of beverages, containers, and other liquids. The litre is equal to 1000 cubic centimetres or 1.76 pints.

The capacity of 1 cm³ is 1 mL. This is because 1 cm³ is equal to 1 milliliter. The conversion factor between cubic centimeters and milliliters is 1:1, meaning that they have the same volume. Therefore, 1 cm³ has a capacity of 1 mL.

The bulk base unit for mass is the tonne. A tonne is a metric unit of mass that is equal to 1000 kilograms. It is commonly used in industries such as shipping, construction, and agriculture to measure large quantities of materials. The other options, kg and ton, are also units of mass, but they are not considered bulk base units like the tonne.

The correct answer is 10,000. One hectare is equal to 10,000 square meters.

The given question is asking for the mass of 1 m³ of water. It is known that 1 m³ of water is equal to 1 tonne. Therefore, the correct answer is 1 tonne.

The given rectangle has dimensions of 10 m x 25 m. To find the area, we multiply the length and width of the rectangle. Converting the dimensions to centimeters, we get 1000 cm x 2500 cm. Multiplying these values gives us an area of 2,500,000 cm², which matches the given answer of 2,500,00 cm².

The hectare is the unique base unit for area. It is a metric unit commonly used in measuring land area. The hectare is equal to 10,000 square meters and is widely used in agriculture and land management. It provides a convenient unit for measuring large areas of land. The other options, m² and acre, are also units of area, but they are not considered base units. The m² is a derived unit from the SI system, and the acre is primarily used in the United States and the UK.

The base unit for temperature is the degree Kelvin. The Kelvin scale is an absolute temperature scale where zero Kelvin represents absolute zero, the point at which all molecular motion ceases. The degree Celsius is also a commonly used unit for temperature, but it is not the base unit.

570,000 mm is equal to 570 meters because there are 1,000 millimeters in a meter. Additionally, 570,000 mm is equal to 0.57 kilometers because there are 1,000 meters in a kilometer.