# Chapter 11 Work Energy and Power MCQ Test 2 Science Class 9 Science

Online Test of Chapter 11 Work Energy and Power 2 Science| Class 9th 1. The kinetic energy of a body changes from 12 J to 60 J due to the action of a force of 5N on an object of mass 4 kg. The work done by the force is: (i) 36 J (ii) 60 J (iii) 48 J (iv) 24 J 2. Two bodies of masses m and 4 m are moving with equal kinetic energy. The ratio of velocities with which they are traveling is : (i) 3:4 (ii) 1:2 (iii) 4:5 (iv) 2:1 3. If the speed of an object do

# Chapter 11 Work Energy and Power MCQ Test 1 Science Class 9 Science

Online Test of Chapter 11 Work Energy and Power 1 Science| Class 9th 1. A body is acted upon by a force 25 N acquires of 2.5 ms-2 and covers a distance of the force. If the body starts from rest, the Kinetic energy acquired by it is?​ (i) 75 J (ii) 25 J (iii) 250 J (iv) 100 J 2. A freely falling body during its fall will have (i) Kinetic energy (ii) Potential energy (iii) Sound energy (iv) Both kinetic energy and potential energy 3. A boy climbs on to a

# Chapter 9 Force and Laws of Motion MCQ Test 2 Science Class 9 Science

Online Test of Chapter 9 Force and Laws of Motion 2 Science| Class 9th 1. According to Newton’s third law of motion, action and reaction (i) always act on the same body (ii) always act on different bodies in opposite direction (iii) have same magnitudes and direction (iv) act on either body at normal to each other 2. The minimum number of unequal forces that can make zero resultant is (i) two (ii) three (iii) four (iv) ten 3. An object of mass 2 kg is sl

# Chapter 9 Force and Laws of Motion MCQ Test 1 Science Class 9 Science

Online Test of Chapter 9 Force and Laws of Motion 1 Science| Class 9th 1. An unbalanced force is necessary for an object to be (i) at reset (ii) in motion with a constant velocity (iii) accelerated (iv) all of the preceding 2. Bags at the top of a school van are tied using a string to avoid the effect of (i) inertia (ii) momentum (iii) force (iv) acceleration 3. Inertia (i) sets objects in motion (ii) causes changes in motion (iii) is the result of a net

# Ch 2 Is Matter Around us Pure NCERT Exemplar Solutions Class 9 Science

NCERT Exemplar Solutions for Ch 2 Is Matter Around us Pure Class 9 Science 1. Suggest separation technique (s) one would need to employ to separate the following mixtures. (a) Mercury and water (b) Potassium chloride and ammonium chloride (c) Common salt, water and sand (d) Kerosene oil, water and salt Solution (a) Separated by separating funnel (b) Sublimation (c) Filtration followed by distillation (d) Separating funnel is used to separate kerosene oil

# Ch 1 Matter in Our Surroundings NCERT Exemplar Solutions Class 9 Science

NCERT Exemplar Solutions for Ch 1 Matter in Our Surroundings Class 9 Science 1. Which one of the following sets of phenomena would increase on raising the temperature? (a) Diffusion, evaporation, compression of gases (b) Evaporation, compression of gases, solubility (c) Evaporation, diffusion, expansion of gases (d) Evaporation, solubility, diffusion, compression of gases Solution Rate of evaporation, diffusion and expansion of gases increase with incre

# Chapter – 6 Tissue MCQ Test 1 Science | Class – 9th

Questions :- 1. A group of cells having a common origin and performing similar functions is called (a) Cell (b) Tissue (c) Organ (d) System 2. Presence of tissues in a multicellular organisms ensures (a) Faster development (b) Division of labour (c) Higher reproductive potential (d) Body strength 3.Which of the following statements given below is not correct about meristematic tissue ? (a) Is nude of cells that are incapable of ce...

# Chapter – 15 Improvement in Natural Resources MCQ Test 2 Science | Class 9th

Questions :- 1. Growing of two or more crops simultaneously on the same piece of land is a)Dis joint cropping b)Alter cropping c)Mixed cropping d)None of these 2. Preventive and control measures adopted for the storage of grains include- a)Strict cleaning b)Proper disjoining c)Fumigation d)All of the above 3. Animal husbandry is the scientific management of a)Animal breeding b)Culture of animals c)Animal livestock d)All of the abo...

# Chapter – 15 Improvement in Natural Resources MCQ Test 1 Science | Class 9th

Questions : - 1. Which one of the following is not cause of air pollution? a)Carbon dioxide b)Carbon monoxide c)Oxides of sulphur d)None of these 2. What is Ozone? a)Allotrope of nitrogen b)Part of nitrogen c)Part of ozone d)Allotrope of oxygen 3. Soil erosion is- a)Rainwater harvesting b)Groundwater extraction c)Removal of fertile layer of soil d)Avoiding water wastage 4. Which of the following is not the causes of soil erosion:...

# Chapter – 14 Natural Resources MCQ Test 2 Science | Class 9th

Questions :- 1. Which one of the following is not cause of air pollution? a)Carbon dioxide b)Carbon monoxide c)Oxides of sulphur d)None of these 2. What is Ozone? a)Allotrope of nitrogen b)Part of nitrogen c)Part of ozone d)Allotrope of oxygen 3. Soil erosion is- a)Rainwater harvesting b)Groundwater extraction c)Removal of fertile layer of soil d)Avoiding water wastage 4. Which of the following is not the causes of soil erosion: ...