Turning Effect of a Force Questions and Answers and Answers

In this session, we are going to solve turning effect of a force questions. The topic is Form 2 Physics work. Answers are available in video format.

Lessons (35)     SHARE

• 1.    State what would happen tothe wheel if the string snapped.
  1m 49s

• 2.    The moment of the weight of vertical door does not significantly affect the moment of the force required to open the door. Give a reason for this.
  2m 29s

• 3.    Determine the moment of the couple named in question 6.
  3m 50s

• 4.    Figure 8 shows a uniform wooden block of mass 2kg and length 25cm lying on a bench. It hangs over the edge of the bench by 10cm. Use the figure to answer questions 10 and 11.Indicate on the figure two forces acting on the wooden block.
  2m 39s

• 5.    State one factor that affects the turning effect of a force on a body.
  2m 53s

• 6.    Fig. 2 shows a rigid body acted upon by a set of forces. The magnitudes of the forces are as follows:# F_1 = 3N, F_2 = 6N, F_3 = 3N, F_4 = 4N, F_5 = 3N AND F_6 = 3N.# Identify the couple among these forces.
  3m 19s

• 7.    Determine the moment of the couple shown in figure 10.
  2m 4s

• 8.    Figure 9 shows a uniform light bar one meter in length in equilibrium under the action of forces# F_1, F_2, F_3 and F_4#. All the forces are in the same plane. Use the information on the figure to answer questions 7 and 8. Name one set of forces on the figure that constitutes a couple.
  4m 45s

• 9.    Figure 9 shows a uniform bar in equilibrium under the action of two forces. Determine the value of F.
  4m 42s

• 10.    Figure 4 shows a uniform metre rule of weight I N with two weights of 0.18 N and 0.12 N suspended from its ends. Determine how far from the 0.18 N weight, a pivot should be placed in order to balance the metre rule.
  9m 16s

• 11.    Figure 5 shows a uniform rod 4m and of mass 2kg. it is pivoted 1m from one end and balanced horizontally by a string attached near the other end. Determine the position where a mass of 5kg should be placed on the rod so that the rod remains horizontal and the tension in the string is zero.
  4m 16s

• 12.    Figure 4 shows a uniform metal rod balanced at its centre by different forces. Determine the value of T.
  5m 13s

• 13.    A uniform metre rule is pivoted at its centre. Two weights of 20N and 10N are suspended at the 20cm and 100cm marks respectively. Determine the position at which a 10N weight should be suspended in order to balance the system.
  5m 50s

• 14.    Figure 4 shows a one metre long uniform rod of negligible weight supporting two weights. Determine the position of the fulcrum from 0 cm for the rod to remain in equilibrium.
  4m 51s

• 15.    The diagram in Fig. 5 shows a beam of negligible weight balanced by constant forces P and Q Derive the relationship between x and y.
  5m 28s

• 16.    Fig. 5 shows a wheel W pivoted at its centre, O and held stationary by a string and a spring. The tension in the string is T and the force on the springs is F. use this information to answer questions 2 and 3. State how the magnitudes of T and F compare. Give reasons for your answer.
  4m 31s

• 17.    A wooden plant of negligible weight and 80cm long is supported by a knife edge at P. Weights of 2N, 4N and F act as shown. Calculate the value of F
  2m 41s

• 18.    A stick of negligible weight is kept in a horizontal position by the force shown in the diagram below. Calculate the value of y and the magnitude of force Q.
  2m 0s

• 19.    The figure below shows a uniform metre rule pivoted at its 30 cm mark. Given M = 200g and the system is in equilibrium. Find the weight of the rule.
  2m 29s

• 20.    A uniform plank of length 5m and weight 250N acted upon by two forces as shown below .Calculate the tension force T that will keep the plank balanced horizontally.
  1m 57s

• 21.    The figure below shows a uniform meter rule balanced at the 30 cm mark when a mass of 50g is hanging from its zero cm mark. Calculate the weight of the rule
  2m 10s

• 22.    The figure below shows a uniform meter rule pivoted at 30cm mark. It is balanced by a weight of 2N suspended at the 5cm mark. Determine the weight of the meter rule.
  2m 10s

• 23.    The following diagram shows a long thin metal bar made of two parts connected at the ends with an insulating material. Side A is brightly polished while B is painted black. Two masses of equal weight are suspended on the ends. The bar is in equilibrium as shown in the diagram below. State and explain what will be observed on the equilibrium of the bar if it is placed outside on a hot day.
  1m 6s

• 24.    The figure below shows a rod made of wood on one end and metal on the other end suspended freely with a piece of thread so that it is in equilibrium. The side made of metal is heated with a Bunsen burner flame. State with a reason, the side to which the rod is likely to tilt.
  1m 9s

• 25.    The figure below shows a system in equilibrium. Determine the force, F needed to maintain the equilibrium. (Ignore the weight of the beam)
  2m 21s

• 26.    The figure below shows a uniform rod of length 4m and pivoted at 3.6m mark. The rod is held horizontally with a vertical rope at 4m mark as shown. If the tension in the rope is 160N, determine the weight of the rod.
  1m 42s

• 27.    The figure below shows a uniform bar pivoted at its centre and is at equilibrium. Determine the value of w.
  2m 0s

• 28.    The figure below shows a uniform bar which weighs 16 N supported by a spring balance at its center. If the system is at equilibrium, a) Determine the value of this force A. b).Determine the reading of the spring balance.
  1m 32s

• 29.    The figure below shows a uniform metre rule pivoted at the 70cm mark. It is balanced by a weight of 2N suspended at the 95cm mark. Determine the weight of the metre rule
  1m 32s

• 30.    The figure below shows a uniform metre rule of weight 1N with two weights of 0.18N and 0.12N suspended from its ends. Determine how far from the 0.18N weight a pivot should be placed in order to balance the metre rule.
  3m 22s

• 31.    The figure below shows uniform bar of length 1.4m pivoted near end. The bar is kept in equilibrium by a string as shown. Given that the weight of the bar is 1.5N, determine the tension in the string.
  2m 43s

• 32.    A uniform metre rule of mass 95g is balanced on a pivot when a mass of 5g is hung from the 10cm mark. Find the position of the pivot
  3m 45s

• 33.    A uniform metre rule pivoted at the 60cm mark is kept horizontally by placing a 50g mass on the 80cm mark. Calculate the mass of the metre rule.
  2m 36s

• 34.    The diagram shows a uniform half-metre rule balanced at its midpoint. What is the weight of the metal block?
  1m 28s

• 35.    The diagram shows a force being applied to a lever to lift a heavy weight. Which change would enable the heavy weight to be lifted with a smaller force?
  0m 33s

---

Related Content

---

•  Magnetism - Form 2 Physics Questions and Answers
  

  In this course, we are going to solve question on magnetism which is a form 2 Physics topic. The questions worked out are exam standards and most of them are from past KCSE examinations. Answers are available in video format.

  20 Video Lessons

•  Form 2 Chemistry Carbon and its compounds topical questions and answers
  

  Form 2 Chemistry Carbon and its compounds topical questions and answers. In this session, we are going to solve several Form 2 Chemistry questions on the topic carbon and its compounds. Answers are in video format.

  33 Video Lessons

•  Form 2 Mathematics Vectors I Questions and Answers
  

  In this session, questions on vectors I will be solved. Vectors I is a Form 2 mathematics topic. Answers are available in video format.

  55 Video Lessons

•  Form 2 Mathematics Statistics I Questions and Answers
  

  This course contains worked out Form 2 Mathematics Statistics I questions.

  56 Video Lessons

•  Form 2 Physics Measurement II Questions and Video Answers
  

  In this session, we are going to solve Physics form 2 questions on measurement II. Answers are in video format.

  20 Video Lessons

•  Form 2 Mathematics Topical Questions and Answers on Similarity and Congruence
  

  Form 2 Mathematics Questions and Answers on Similarity and Congruence. Similarity and Congruence is a subtopic under transformations, a form 2 topic. Answers are in video format.

  17 Video Lessons

•  Form 2 Physics Video Questions and Answers on Hooke's Law
  

  Form 2 Physics Video Questions and Answers on Hooke's Law. In this session, we will solve several questions on Hooke's law. All answers are well explained.

  18 Video Lessons

•  Form 2 Mathematics Linear Inequalities Topical Video Questions and Answers
  

  Form 2 Mathematics Linear Inequalities Video Questions and Answers. In this course, we are going to solve Mathematics Form 2 questions on linear inequalities. Answers are available in video format.

  60 Video Lessons

•  Form 2 Chemistry Questions and Answers on Chemical Families
  

  Form 2 Chemistry Questions and Answers on Chemical Families. This course contains several solved Chemistry questions on chemical families.

  36 Video Lessons

•  Form 2 Mathematics Indices and Logarithms Online Lessons
  

  Form 2 Mathematics Indices and Logarithms Online Lessons. In this course, we are going to learn about indices and logarithms, a Form 2 Mathematics topic.

  5 Video Lessons

•  Form 2 Physics Wave 1 Video Questions and Answers
  

  Form 2 Physics Wave 1 Video Questions and Answers. Browse through high quality physics video question and answers on waves 1. Detailed and well explained solutions.

  20 Video Lessons

•  Form 2 Mathematics Video Questions and Answers on Linear Motion
  

  Form 2 Mathematics Video Questions and Answers on Linear Motion. Find detailed video questions and answers on linear motion. The questions have been extracted from past exams.

  42 Video Lessons

•  Quadratic Expressions and Equations Video Questions and Answers
  

  Quadratic Expressions and Equations Video Questions and Answers Get variety of questions and answers on the topic Quadratic Expressions and Equations. All questions has been clearly worked out.

  32 Video Lessons

•  Video Questions and Answers on Equations of Straight Lines
  

  Video Questions and Answers on Equations of Straight Lines. In this course, we are going to solve several questions on Equations of Straight Lines.

  45 Video Lessons

•  Form 2 Questions and Answers on Indices and Logarithms
  

  Form 2 Questions and Answers on Indices and logarithms. In this course, we are going to learn through worked out examples. Answers are in video format.

  99 Video Lessons

•  Form 2 English Course on Compositions
  

  Form 2 English Course on Compositions: Course Content: 1. Informal Letters. 2. Letters of Apology. 3. Business Letters. 4. Imaginative Essays. 5. Filling in Forms

  5 Video Lessons

•  Form 2 English Course on Adverbial Clauses
  

  In this course, we will cover the following: - Adverbial Clauses 1 - Adverbial Clauses 2 - Adverbial Clauses 3 - Revision Exercises on Adverbial Clauses

  7 Video Lessons

•  Form 2 English Course on Voice
  

  Form 2 English Lessons on Voice. By the end of the course. the learner should be able to:- a) Differentiate between active and passive voice b) Use active voice in sentences. c) Tackle practice exercises on active and passive voice.

  5 Video Lessons

•  Form 2 English Course on Modal Auxiliaries
  

  Form 2 English Course on Modal Auxiliaries. By the end of the course, the learner should be able to: - Give the functions of modal auxiliaries. - Use modal auxiliaries to bring out their functions in sentences. - Use modal auxiliaries in sentences. - Use modal auxiliaries to express necessity....

  5 Video Lessons

•  Form 2 English Course on Relative Clauses
  

  Form 2 English Course on Relative Clauses. By the end of this course, the learner should be able to: (i) Define relative clauses and give examples in sentences. (ii) Answer questions on relative clauses (iii) Use and identify relative clauses in sentences.

  15 Video Lessons

•  Past KCSE Mathematics Questions and Video Answers on Equations of Straight Lines
  

  This course contains the past KCSE questions and video answers on the topic equations of straight lines. Equations of straight lines is a Mathematics topic in Form 2.

  28 Video Lessons

•  Form 2 English Lesson on Subordinate Conjunctions
  

  In this course, the following will be covered: 1. Definition of subordinate clause. 2. Examples of subordinate clauses. 3. Using subordinate clauses in sentences. 4. Rules on coordinating clause. 5. Revision exercise on subordinating conjunction.

  5 Video Lessons

•  Form 2 English Course on Riddles
  

  Form 2 English Course on Riddles. In this course, the following will be covered. 1. Definition of a riddle. 2. Classification of riddles. 3. Functions and characteristics of riddles. 4. Examples of riddles. 5. The riddling process. 6. Revision exercise on riddles.

  6 Video Lessons

•  Form 2 English Course on Homonyms
  

  In this course, we will cover the the topic on homonyms conclusively. Areas of coverage: 1. Definition of homonyms. 2. Revision exercises on homonyms. 3. Giving meaning meaning of often confused words, 4. Tackle exercise on commonly confused word.

  5 Video Lessons

•  Form 2 English Lessons on Compound Sentences
  

  In this course, we will cover the following: 1. Definition of compound sentences. 2. Definition of a clause. 3. Types of clauses. 4. Commas and compound sentences. 5. Revision exercises on compound sentences.

  5 Video Lessons

•  Form 2 English Course on Complex Sentences
  

  Form 2 English Course on Complex Sentences. In this course, the following items are covered: 1. Definition of complex sentences 2. Clauses in complex sentences 3. Exercise on complex sentences. 4.Role of subordinate conjunction in a complex sentence.

  5 Video Lessons

•  Form 2 English Course on Adverbs
  

  In this course, we will cover the following: 1. Adverbs of degree. 2. Adverbial Phrases. 3. Comparative and Superlative Forms of Adverbs. 4. Revision Exercises

  5 Video Lessons

•  Form 2 English Course on Adjectives
  

  Form 2 English Course on Adjectives. In this course, we are going to learn about order of adjectives. After the course, there are revision exercises to reflect on what one has learnt.

  5 Video Lessons

•  Form 2 English Course on Tense
  

  Form 2 English Course on Tense. In this course, the following will be covered: 1. Uses of present perfect tense. 2. Revision Questions on present perfect tense. 3. Uses of the present perfect continuous tense. 4. Revision exercise on the present perfect continuous tense

  5 Video Lessons

•  Form 2 English Lessons on Songs
  

  By the end of this course, the learner will be able to: a) Define a song. b) Give the qualities of a song. c) Give the functions of songs. d) Give the classification of songs. f) define lullabies. g) give the characteristics of lullabies. among others

  6 Video Lessons

•  Form 2 English Course on Prepositions
  

  What is covered in this course? 1.How prepositions are used with particular words to express a given meaning. 2.How certain prepositions are used with certain words to form sentences 3.Use of complex prepositions in sentences. 4.Show the key relationships in a number of prepositions in...

  5 Video Lessons

•  Form 2 English Lessons on Myths
  

  In this course, the topic of myths will be covered in details. The following content will be covered: 1. Oral Literature: Definition, nonverbal cues crucial to oral literature communication, reasons for studying oral literature 2.Classification of Oral Literature. 3.Qualities of a good story...

  5 Video Lessons

•  Form 2 English Lessons on The Future
  

  This video course ensures that the learner understands the fact that the future is constructed by means of different expressions like: - going to..to express future time, the present simple tense to express future time, the present continuous tense to express future time..

  5 Video Lessons

•  Form 2 Video Course on Listening Skills
  

  This lesson is about effective listening. It enables students come to realization of good/bad listening habits for themselves as it will make greater impact upon them and help them understand the adverse effects of inattentive listening.

  5 Video Lessons

•  Form 2 Lessons on Pronouns
  

  This course will help learners better understand the pronouns, three persons of the pronoun and number of pronoun. At the end of the course, we will also have revision exercises on pronouns.

  5 Video Lessons

•  Course in Collective Nouns, Phrasal Quantifiers and Idioms
  

  By the end of this course, learners should be able to: 1. Use collective nouns in sentences. 2. Use and interpret idioms as used in sentences. 3. Give the meaning of idiomatic expressions. 4. Define and use quantifiers in a sentence. 5. Define and give functions of phrasal quantifiers.

  5 Video Lessons

•  Form 2 mathematics lessons about reciprocals
  

  In this courses, learners will learn and understand how to: i) Find the reciprocals of numbers by division method. ii) Find the reciprocals of numbers using reciprocal tables/mathematical table. iii) Evaluate mathematical expressions using reciprocals.

  10 Video Lessons

•  Cubes and Cube Roots Video Lessons
  

  In this course, we will find cube roots of numbers by factor method and multiplication method. Cube Roots Cube roots are opposite of cubes. The cube root of a given number is the number that is multiplied by itself three times to get the number.

  20 Video Lessons