4th Class Science Force, Work and Energy Question Bank

done Work, Force and Energy Total Questions - 50

• question_answer1)
  Which of these are at rest?

  A. A running boy	B. A book kept on table	C. A moving bus
  D. A sleeping dog	E. Trees

  A)
  A, B & E                      done clear
  B)
  B, D & E       done clear
  C)
  A, B & C                     done clear
  D)
  E only done clear
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• question_answer2)
  Which of these is in motion?

  A. A flying bird	B. Utensils on the kitchen shelf
  C. Boy running on the race track

  A)
  B only                          done clear
  B)
  A & C         done clear
  C)
  A & B                          done clear
  D)
  A, B & C done clear
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• question_answer3)
  What do we do when we want to move something?
  A)
  We call it                          done clear
  B)
  We eat food done clear
  C)
  We either push or pull it        done clear
  D)
  None of these done clear
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• question_answer4)
  ______ is applied when something is pushed or pulled.
  A)
  Force               done clear
  B)
  Work          done clear
  C)
  Lotion                          done clear
  D)
  Paste done clear
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• question_answer5)
  Rest : Motion : : Push : ?
  A)
  Motion                         done clear
  B)
  Pull          done clear
  C)
  Rest                             done clear
  D)
  Run done clear
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• question_answer6)
  Find the odd one out.
  A)
  Solar energy    done clear
  B)
  Heat energy    done clear
  C)
  Wind energy    done clear
  D)
  Motion done clear
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• question_answer7)
  Hydro energy : Water : : Solar energy : ?
  A)
  Sun                  done clear
  B)
  Wind          done clear
  C)
  Water                           done clear
  D)
  Moon done clear
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• question_answer8)
  Gravitation is the force exerted by _______.
  A)
  us to push things,         done clear
  B)
  us to pull things. done clear
  C)
  earth to attract things towards itself. done clear
  D)
  none of these. done clear
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• question_answer9)
  Why does an apple fall down when it gets detached from the tree?
  A)
  Because it likes the ground               done clear
  B)
  Due to gravitational force   done clear
  C)
  Both                      done clear
  D)
  None of these done clear
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• question_answer10)
  What will happen if you throw a ball very high?                     
  A)
  It will keep on going upwards              done clear
  B)
  It will come back towards the ground          done clear
  C)
  It will go to another planet                                         done clear
  D)
  It will break into pieces done clear
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• question_answer11)
  An electric heater is an example of _______ .
  A)
  heat energy      done clear
  B)
  electrical energy done clear
  C)
  gravitational energy     done clear
  D)
  both (a) and (b) done clear
  View Solution play_arrow

• question_answer12)
  Which of the following energies can be replenished?
  A)
  Solar energy            done clear
  B)
  Wind energy done clear
  C)
  Water energy  done clear
  D)
  All of the above done clear
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• question_answer13)
  Energy is:
  A)
  Power of an object       done clear
  B)
  Ability to do work done clear
  C)
  Push or pull an object                 done clear
  D)
  To overcome force and friction done clear
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• question_answer14)
  Which energy is associated with the following figure?   
  A)
  Hydro energy                      done clear
  B)
  Muscular energy                                              done clear
  C)
  Solar energy          done clear
  D)
  Electrical energy                                      done clear
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• question_answer15)
  A football is kicked by a boy. It rolls on the ground to some distance and stops. The force which stops the ball is _______.
  A)
  muscular force                        done clear
  B)
  gravitational force done clear
  C)
  mechanical force                      done clear
  D)
  frictional force done clear
  View Solution play_arrow

• question_answer16)
  Who was the first one to discover the concept of gravitational force?
  A)
  George Einstein           done clear
  B)
  Sir Isaac Newton done clear
  C)
  Albert Einstein             done clear
  D)
  None of these done clear
  View Solution play_arrow

• question_answer17)
  The force exerted by the magnet is called ______ .
  A)
  Gravitational force       done clear
  B)
  Magnetic force done clear
  C)
  Normal force   done clear
  D)
  None of these done clear
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• question_answer18)
  ______ substances get attracted to a magnet.
  A)
  Magnetic          done clear
  B)
  All             done clear
  C)
  Plastic                          done clear
  D)
  Wooden done clear
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• question_answer19)
  Ability to do work is called ______.
  A)
  force                            done clear
  B)
  gravity         done clear
  C)
  energy                          done clear
  D)
  none of these done clear
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• question_answer20)
  What is the energy stored in our muscles?
  A)
  Solar energy     done clear
  B)
  Light energy done clear
  C)
  Heat energy     done clear
  D)
  Muscular energy done clear
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• question_answer21)
  Work is said to be done when ______.
  A)
  force is applied, it does not matter whether the things move or not. done clear
  B)
  force is applied and the object moves. done clear
  C)
  we push a wall. done clear
  D)
  whenever force is applied. done clear
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• question_answer22)
  Read the statements carefully and choose the correct option.

  Statement A: We get energy from food we eat.

  Statement B: We need energy to do work.

  A)
  Statement A. is correct B is wrong,    done clear
  B)
  Statement B is correct A is wrong. done clear
  C)
  Both the statements are correct,      done clear
  D)
  Both the statements are wrong. done clear
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• question_answer23)
  Match the following:

  List - II		List - II
  A.	Electric bulb	1.	From the fuel
  B.	Vehicles get energy	2.	Air pollution
  C.	Burning of wood causes	3.	Is a source of light energy

   
  A)
  A-3, B-1, C-2 done clear
  B)
  A-1, B-2, C-3 done clear
  C)
  A-3, B-2, C-1 done clear
  D)
  A-2, B-1, C-3 done clear
  View Solution play_arrow

• question_answer24)
  Tell whether these statements are true or false?

  1. Sun is an artificial source of energy.

  2. Electric lamp works on food.

  3. Computers work on electricity.

  4. We can get wind energy any time.

  A)
  TTTT                           done clear
  B)
  FFFF         done clear
  C)
  FFTF                           done clear
  D)
  TFFT done clear
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• question_answer25)
  Direction: Read the passage and answer the questions below: There are many forms of energy. We get heat energy by burning LPG or wood. We mainly use heat energy to cook our food. Moving air has also got energy called wind energy. This energy, 5 used by the wind mills to produce electricity. Solar energy is also very useful). It is used for cooking food with solar cooker. It is also used to heat water by solar water heater. The energy stored in our muscles is called muscular energy with the help of which we do different works. We get heat energy by:  
  A)
  burning air      done clear
  B)
  burning wood    done clear
  C)
  by heating water          done clear
  D)
  by wind done clear
  View Solution play_arrow

• question_answer26)
  Direction: Read the passage and answer the questions below: There are many forms of energy. We get heat energy by burning LPG or wood. We mainly use heat energy to cook our food. Moving air has also got energy called wind energy. This energy, 5 used by the wind mills to produce electricity. Solar energy is also very useful). It is used for cooking food with solar cooker. It is also used to heat water by solar water heater. The energy stored in our muscles is called muscular energy with the help of which we do different works. Heat energy is mainly used:
  A)
  to cook food     done clear
  B)
  to run fans done clear
  C)
  to sail boat                   done clear
  D)
  to decorate the house done clear
  View Solution play_arrow

• question_answer27)
  Direction: Read the passage and answer the questions below: There are many forms of energy. We get heat energy by burning LPG or wood. We mainly use heat energy to cook our food. Moving air has also got energy called wind energy. This energy, 5 used by the wind mills to produce electricity. Solar energy is also very useful). It is used for cooking food with solar cooker. It is also used to heat water by solar water heater. The energy stored in our muscles is called muscular energy with the help of which we do different works. Moving air is used by ______ to produce electricity.
  A)
  dams                            done clear
  B)
  wind mills       done clear
  C)
  auto rickshaw done clear
  D)
  all of these done clear
  View Solution play_arrow

• question_answer28)
  Direction: Read the passage and answer the questions below: There are many forms of energy. We get heat energy by burning LPG or wood. We mainly use heat energy to cook our food. Moving air has also got energy called wind energy. This energy, 5 used by the wind mills to produce electricity. Solar energy is also very useful). It is used for cooking food with solar cooker. It is also used to heat water by solar water heater. The energy stored in our muscles is called muscular energy with the help of which we do different works. Which energy is associated with the fan shown in the figure below?     
  A)
  Hydro energy   done clear
  B)
  Muscular energy done clear
  C)
  Solar energy                 done clear
  D)
  Electrical energy done clear
  View Solution play_arrow

• question_answer29)
  Direction: Read the passage and answer the questions below: There are many forms of energy. We get heat energy by burning LPG or wood. We mainly use heat energy to cook our food. Moving air has also got energy called wind energy. This energy, 5 used by the wind mills to produce electricity. Solar energy is also very useful). It is used for cooking food with solar cooker. It is also used to heat water by solar water heater. The energy stored in our muscles is called muscular energy with the help of which we do different works. A solar cooker cooks food using ______.
  A)
  wind energy                 done clear
  B)
  hydro energy done clear
  C)
  solar energy                 done clear
  D)
  electric energy done clear
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• question_answer30)
  Rohan tried to push this huge stone but could not even move it. So Rohan _____.                                     
  A)
  has not done work at all done clear
  B)
  has done a little work done clear
  C)
  has done a lot of work             done clear
  D)
  none of these done clear
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• question_answer31)
  Direction: Fill in the blanks with correct option. There are many types of energy. Some energies are used without __(31)__ the environment. One such energy is hydro energy. Hydro means __(32)__. It is used to produce ___(33)__ by constructing huge __(34)__.
  A)
  Polluting           done clear
  B)
  bathing        done clear
  C)
  Refreshing                    done clear
  D)
  none of these done clear
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• question_answer32)
  Direction: Fill in the blanks with correct option. There are many types of energy. Some energies are used without __(31)__ the environment. One such energy is hydro energy. Hydro means __(32)__. It is used to produce ___(33)__ by constructing huge __(34)__.
  A)
  air                                done clear
  B)
  gas            done clear
  C)
  Water               done clear
  D)
  solid done clear
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• question_answer33)
  Direction: Fill in the blanks with correct option. There are many types of energy. Some energies are used without __(31)__ the environment. One such energy is hydro energy. Hydro means __(32)__. It is used to produce ___(33)__ by constructing huge __(34)__.
  A)
  cloth                             done clear
  B)
  plants          done clear
  C)
  Electricity         done clear
  D)
  none of these done clear
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• question_answer34)
  Direction: Fill in the blanks with correct option. There are many types of energy. Some energies are used without __(31)__ the environment. One such energy is hydro energy. Hydro means __(32)__. It is used to produce ___(33)__ by constructing huge __(34)__.
  A)
  walls                            done clear
  B)
  houses          done clear
  C)
  hotels                           done clear
  D)
  dams done clear
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• question_answer35)
  Direction: Which energy is associated with the following? An electric lamp gives us light.
  A)
  Electrical          done clear
  B)
  Light            done clear
  C)
  Hydro                          done clear
  D)
  Both (a) & (b) done clear
  View Solution play_arrow

• question_answer36)
  Direction: Which energy is associated with the following? Plants use sunlight to prepare their food.
  A)
  Solar                            done clear
  B)
  Electrical       done clear
  C)
  Both                             done clear
  D)
  None of these done clear
  View Solution play_arrow

• question_answer37)
  Direction: Which energy is associated with the following? Food is cooking on the stove.
  A)
  Heat                            done clear
  B)
  Electrical       done clear
  C)
  Hydro                          done clear
  D)
  All of these done clear
  View Solution play_arrow

• question_answer38)
  Direction: What is the effect of force applied in the following cases? A rubber band is stretched
  A)
  change in direction                   done clear
  B)
  change from rest to motion done clear
  C)
  change in shape            done clear
  D)
  change in speed done clear
  View Solution play_arrow

• question_answer39)
  Direction: What is the effect of force applied in the following cases? A football on the ground is kicked
  A)
  change in direction                   done clear
  B)
  change from rest to motion done clear
  C)
  change in shape                      done clear
  D)
  change in speed done clear
  View Solution play_arrow

• question_answer40)
  Direction: What is the effect of force applied in the following cases? When we press the accelerator of the car
  A)
  change in direction                   done clear
  B)
  change from rest to motion done clear
  C)
  change in shape                      done clear
  D)
  change in speed done clear
  View Solution play_arrow

• question_answer41)
  Direction: What is the effect of force applied in the following cases? A ball coming from north is kicked in different direction
  A)
  change in direction              done clear
  B)
  change from rest to motion done clear
  C)
  change in shape                      done clear
  D)
  change in speed done clear
  View Solution play_arrow

• question_answer42)
  Direction: What is the effect of force applied in the following cases? When we hit a tin
  A)
  change in direction                   done clear
  B)
  change from rest to motion done clear
  C)
  change in shape                done clear
  D)
  change in speed done clear
  View Solution play_arrow

• question_answer43)
  Which of the following cannot be done by using muscular force?
  A)
  Changing the direction of a moving body done clear
  B)
  Stopping a moving body done clear
  C)
  Changing one type of body into another type of body done clear
  D)
  Increasing or decreasing the speed of a body done clear
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• question_answer44)
  Directions: Observe the pictures and choose the best answer. What is he applying on the box?
  A)
  Work                            done clear
  B)
  Force done clear
  C)
  Energy                         done clear
  D)
  Muscles done clear
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• question_answer45)
  Which force is being applied in this picture?
  A)
  Muscular force     done clear
  B)
  Gravitational force done clear
  C)
  Mechanical force                     done clear
  D)
  Elastic force done clear
  View Solution play_arrow

• question_answer46)
  Which form of energy is it?                           
  A)
  Electrical energy           done clear
  B)
  Mechanical energy done clear
  C)
  Gravitational energy    done clear
  D)
  Thermal energy done clear
  View Solution play_arrow

• question_answer47)
  In which of the following activities is force used for pulling?
  A)
       done clear
  B)
    done clear
  C)
       done clear
  D)
  done clear
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• question_answer48)
  Which statement is not true?
  A)
  Friction makes a moving object slow down done clear
  B)
  Friction decreases the roughness of an object done clear
  C)
  Friction enables on object to stay in a stationary position done clear
  D)
  Friction is opposite to the force done clear
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• question_answer49)
  Naman was trying to push his table on the other side of the wall. After sometime he got tired but couldn't move the table at all. He told his elder brother that he is tired as he has done a lot of work. His brother explained that the work done is zero. What values did Naman?s brother demonstrate?
  A)
  In depth knowledge of the subject. done clear
  B)
  Patience done clear
  C)
  Ability to explain the concept in a simple language. done clear
  D)
  All of the above done clear
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• question_answer50)
  Amit did not wanted to do his homework. He was throwing his pencil away but every time it fell down on the floor. He got angry. What should you do to make him feel better?
  A)
  Scold him done clear
  B)
  Be calm, and explain the concept of gravity to him. done clear
  C)
  Ask him to take a short break and then finish his homework. done clear
  D)
  Both (b) & (c) done clear
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