A body of mass 5 kg is moving with velocity of 4 m/s. Calculate kinetic energy possessed by the body.
A)
20 J
done
clear
B)
30 J
done
clear
C)
40 J
done
clear
D)
50 J
done
clear
E)
None of these
done
clear
View Answer play_arrow
Sita got hurt while swimming. She wants to apply detol on her wound so she put few drops of detol in warm water. Drops of detol molecules spread there in the liquid. What is this process called?
A)
Dissolution
done
clear
B)
Mixing
done
clear
C)
Diffusion
done
clear
D)
All of these
done
clear
E)
None of these
done
clear
View Answer play_arrow
If we add half teaspoon of sugar in these container. In which container does the sugar dissolve the fastest.
A)
A
done
clear
B)
A & B
done
clear
C)
B
done
clear
D)
C
done
clear
E)
All of these
done
clear
View Answer play_arrow
Geeta takes copper carbonate powder in a test tube and heat it, she observes bluish green colour of copper carbonate turns into black. What is the conclusion of the experiment?
A)
This is an example of chemical change.
done
clear
B)
Copper oxide is obtained after cooling the test tube.
done
clear
C)
Copper carbonate can not be get back after reaction.
done
clear
D)
All of these
done
clear
E)
None of these
done
clear
View Answer play_arrow
Which one of the following kinds of joints is present between skull and neck?
A)
Hinge joint
done
clear
B)
Pivot joint
done
clear
C)
Ball and socket joint
done
clear
D)
All of these
done
clear
E)
None of these
done
clear
View Answer play_arrow
Roshan lost his apple in the playground while playing, what will happen to apple after a week?
A)
It will get mixed with soil.
done
clear
B)
It will not get mixed with soil.
done
clear
C)
If it's a high quality apple, it will not get mixed with soil.
done
clear
D)
The apple will stay as it is.
done
clear
E)
None of these
done
clear
View Answer play_arrow
Jenny set up 2 tanks labeled A and B. She placed fishes in each tank but she put hydrilla (an aquatic plant) in tank A only. Jenny found that fishes swam freely in tank A but fishes in tank B swam near to the bottom water surface. Jenny concluded that hydrilla:
A)
Help to beautify the aquarium.
done
clear
B)
Provide shade for the fishes.
done
clear
C)
Are the main source of food for the fishes.
done
clear
D)
Provide oxygen for the fishes to breathe during photosynthesis.
done
clear
E)
None of these
done
clear
View Answer play_arrow
Ashmat went to Sunderbans in West Bengal, he noticed that there were many pencil structured root around a tree which came out of the soil around the plant. Which on of the following types of root did Ashmat seen in Sunderbans?
A)
Pneumatophores
done
clear
B)
Prop root
done
clear
C)
Fibrous root
done
clear
D)
All of these
done
clear
E)
None of these
done
clear
View Answer play_arrow
In which one of the following methods of separations, magnetic materials are separated with the help of a magnet?
A)
Sieving
done
clear
B)
Threshing
done
clear
C)
Magnetic separation
done
clear
D)
Winnowing
done
clear
E)
None of these
done
clear
View Answer play_arrow
Which one of the following methods of separation is given in the picture below for the separation of husk from grains?
A)
Winnowing
done
clear
B)
Sieving
done
clear
C)
Handpicking
done
clear
D)
All of these
done
clear
E)
None of these
done
clear
View Answer play_arrow
The presence of starch in a food can be tested by using the dilute iodine solution as iodine produces ______ colour on combination with starch.
A)
Black
done
clear
B)
Brown
done
clear
C)
Blue-black
done
clear
D)
Yellow-black
done
clear
E)
None of these
done
clear
View Answer play_arrow
A lion eats only flesh of other animals. In which one of the following groups would you like to place it?
A)
Herbivores
done
clear
B)
Carnivores
done
clear
C)
Omnivores
done
clear
D)
Decomposers
done
clear
E)
None of these
done
clear
View Answer play_arrow
A bowl containing solution of sugar and water is kept in the Sun in the morning. At the end of day all water is evaporated but___.
A)
Bowl is broken
done
clear
B)
Some drops of water are still there
done
clear
C)
Sugar is left behind
done
clear
D)
Sugar also evaporates
done
clear
E)
None of these
done
clear
View Answer play_arrow
Which of the following does not yield wool?
A)
Camel
done
clear
B)
Goat
done
clear
C)
Yak
done
clear
D)
Wooly dog
done
clear
E)
None of these
done
clear
View Answer play_arrow
The normal temperature of human body is
A)
\[40{}^\circ \]C
done
clear
B)
\[42{}^\circ \]C
done
clear
C)
\[35{}^\circ \]C
done
clear
D)
\[37{}^\circ \]C
done
clear
E)
None of these
done
clear
View Answer play_arrow
The process by which transfer of heat takes place by the actual movement of particles from of the body to another part is called:
A)
Conduction
done
clear
B)
Convection
done
clear
C)
Radiation
done
clear
D)
Vaporization
done
clear
E)
None of these
done
clear
View Answer play_arrow
Brown colour of the apple after cutting is:
A)
phisical change
done
clear
B)
chemical change
done
clear
C)
biological change
done
clear
D)
no change
done
clear
E)
None of these
done
clear
View Answer play_arrow
Find the animal living in Polar Regions.
A)
Donkey
done
clear
B)
Monkey
done
clear
C)
Gorilla
done
clear
D)
Polar bear
done
clear
E)
None of these
done
clear
View Answer play_arrow
Taking in air rich oxygen into the body is called ____.
A)
Inhalation
done
clear
B)
Exhalation
done
clear
C)
Respiration
done
clear
D)
Breathing
done
clear
E)
None of these
done
clear
View Answer play_arrow
The sting of an ant contains ____.
A)
sulphuric acid
done
clear
B)
hydrochloric acid
done
clear
C)
formic acid
done
clear
D)
ethanoic acid
done
clear
E)
None of these
done
clear
View Answer play_arrow
The amount of humidity in the atmosphere is a measure of ___ in air.
A)
heat
done
clear
B)
chemicals
done
clear
C)
temperature
done
clear
D)
moisture
done
clear
E)
None of these
done
clear
View Answer play_arrow
All changes taking place in the atmosphere are concede by the ___.
A)
Moon
done
clear
B)
Sun
done
clear
C)
Earth
done
clear
D)
All of these
done
clear
E)
None of these
done
clear
View Answer play_arrow