a) A d) m b) cd c) d 21. The symbol used for ampere is b) M c) a 22. The symbol used for candela is a) c d) A 23. The international system of units is based on ay 7 base units b) 8 base units c) 9 base units d) none 24. The thickness of the metal sheet is 0.2 mm. its thickness in meter will be a) 0.2 m b) 0.02 m c) 0.0002m d) non 25. The mass of potassium is 600 mg. its mass in kg will be a) 0.6 kg b) 0.06 kg c) 0.0006 kg d) 0.00 26. The mass of moon is about a) 7 * 1022 kg b) 7 x 1020 kg c) 7 x 1021 kg d) 7 27. The diameter of atomic nucleus is about a) 1 x 10-14 m b) 1 x 1014 m c) 1 1013 m d) non 28. The standard form of 26300 kg is a) 2.63 x 10° b) 2.63 x 104 kg c) 2.63 x 10-4 kg d) 2.63 29. The standard form of 0.0000056 m is a) 5.6 x 106 m b) 5.6 x 10-6 c) 5.6 x 107 m d) 5.6 m m
Answers
Answer:
What is a pronoun?
A pronoun is “any member of a small class of words found in many languages that are used as replacements or substitutes for nouns and noun phrases, and that have very general reference,” such as I, you, he, this, it, who, what.
Common types of pronouns
Personal pronouns
Personal pronouns take the place of people or things. They can be either singular or plural, depending whether they refer to one or multiple nouns. Examples include I, me, we, and us.
Personal pronouns are usually either the subject of a sentence or an object within a sentence. Each personal pronoun has different forms depending on its function. For example, if a writer is referring to himself, he should use I if he’s the subject of a sentence, as in “I saw the dog.” If he’s the object, he should use me, as in “The dog saw me.”
Do you know the history behind using they and themself as singular pronouns? Find out more and why they are making a comeback now.
Possessive pronouns
Possessive pronouns are personal pronouns that also indicate possession of something. They have singular forms (like my), and plural forms (like our). These pronouns often appear before the possessed item, but not always. For example, both “my car” and “the car is mine” both indicate who owns the car.
Relative pronouns
A relative pronoun starts a clause (a group of words that refer to a noun). Who, that, and which are all relative pronouns. They can also serve as other types of pronouns, depending on the sentence. For example, in “I saw the dog that you own,” the relative pronoun that is the beginning of the clause that you own, which describes the dog.
Reflexive pronouns
When a subject performs an action on itself, the sentence uses a reflexive pronoun after the verb. Reflexive pronouns include myself, himself, themselves, and herself. An example of a reflexive pronoun is the common expression “I kicked myself.”
Intensive pronouns
Intensive pronouns are similar to reflexive pronouns, but have a different function in a sentence. An intensive pronoun is not a necessary part of a sentence and serves only to add emphasis to its antecedent. For example: I told the children that you yourself would bake the cake today. In this sentence, yourself is an intensive pronoun that repeats the idea that you are making the cake. (Better get to it then!)
What is a pronoun?
A pronoun is “any member of a small class of words found in many languages that are used as replacements or substitutes for nouns and noun phrases, and that have very general reference,” such as I, you, he, this, it, who, what.
Common types of pronouns
Personal pronouns
Personal pronouns take the place of people or things. They can be either singular or plural, depending whether they refer to one or multiple nouns. Examples include I, me, we, and us.
Personal pronouns are usually either the subject of a sentence or an object within a sentence. Each personal pronoun has different forms depending on its function. For example, if a writer is referring to himself, he should use I if he’s the subject of a sentence, as in “I saw the dog.” If he’s the object, he should use me, as in “The dog saw me.”
Do you know the history behind using they and themself as singular pronouns? Find out more and why they are making a comeback now.
Possessive pronouns
Possessive pronouns are personal pronouns that also indicate possession of something. They have singular forms (like my), and plural forms (like our). These pronouns often appear before the possessed item, but not always. For example, both “my car” and “the car is mine” both indicate who owns the car.
Relative pronouns
A relative pronoun starts a clause (a group of words that refer to a noun). Who, that, and which are all relative pronouns. They can also serve as other types of pronouns, depending on the sentence. For example, in “I saw the dog that you own,” the relative pronoun that is the beginning of the clause that you own, which describes the dog.
Reflexive pronouns
When a subject performs an action on itself, the sentence uses a reflexive pronoun after the verb. Reflexive pronouns include myself, himself, themselves, and herself. An example of a reflexive pronoun is the common expression “I kicked myself.”
Answer:
The International System of Units (SI, abbreviated from the French Système international (d'unités)) is the modern form of the metric system. It is the only system of measurement with an official status in nearly every country in the world. It comprises a coherent system of units of measurement starting with seven base units, which are the second (the unit of time with the symbol s), metre (length, m), kilogram (mass, kg), ampere (electric current, A), kelvin (thermodynamic temperature, K), mole (amount of substance, mol), and candela (luminous intensity, cd). The system allows for an unlimited number of additional units, called derived units, which can always be represented as products of powers of the base units.[a] Twenty-two derived units have been provided with special names and symbols.[b] The seven base units and the 22 derived units with special names and symbols may be used in combination to express other derived units,[c] which are adopted to facilitate measurement of diverse quantities. The SI also provides twenty prefixes to the unit names and unit symbols that may be used when specifying power-of-ten (i.e. decimal) multiples and sub-multiples of SI units. The SI is intended to be an evolving system; units and prefixes are created and unit definitions are modified through international agreement as the technology of measurement progresses and the precision of measurements improves.