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WorksheetsMathematics and Science Quiz
Total questions: 15
Worksheet time: 8mins
Graphically, the pair of equations 6x – 3y + 10 = 0
2x – y + 9 = 0
Intersecting at exactly one point
Intersecting at two points
Coincident
Parallel
If a pair of linear equations is consistent, then
the lines will be
parallel
always coincident
intersecting or coincident
always intersecting
For what value of k, for the equations 3x – y + 8 = 0 and 6x – ky = -16 represents coincident lines?
12
-12
2
-2
If x = a, y = b is the solution of the equation x – y = 2 and x + y = 4, then the value of a and b are respectively
3 and 5
5 and 3
3 and 1
-1 and -3
The angles of a triangle are x, y and 40°. The difference between the two angles x and y is 30°. The values of x and y are
45°, 75°
50°, 80°
55°, 85°
55°, 95°
If in the equation x + 2y = 10, the value of y is 6, then the value of x will be
-2
2
4
5
The sum of the digits of a two-digit number is 9. If 27 is added to it, the digits of the number get reversed. The number is
27
72
45
36
If magnification is less than one. It implies
object is smaller than image
image is smaller than object
image and object both are equal in size
image and object are opposite to each other
If an image is formed erect on putting object near the mirror but the image is formed inverted on putting object far from the mirror, the
the mirror will be:
Plane
Concave
Convex
Plano convex
Which of the following statements is true about involuntary breathing?
It is controlled by the bronchioles
It is controlled by the pulmonary arterioles
It is controlled by the alveolar-capillary network
It is controlled by the neurons, located in the medulla and pons
Which of the following functions by filtering and keeping the mucus and dirt away from our lungs?
Cilia
Bronchioles
Hairs in the lungs
All of the above
In which part of the respiratory system, gaseous exchange takes place?
Alveoli
Pharynx
Larynx
Trachea
Which of the following are parts of the human respiratory system?
Trachea
The lungs
Diaphragm
All of the above
A student performs an experiment to form aluminium chloride from aluminium and chlorine. Which options give the chemical equation of the reaction?
Al + Cl2 → AlCl2
2Al + Cl2 → 2AlCl
2Al + 3Cl2 → 2AlCl3
3Al + 3Cl2 → 3AlCl3
The chemical reaction between potassium chloride and silver nitrate is given by the chemical equation.
AgNO3 + KCl → AgCl + KNO3
What can be inferred from the chemical equation?
decomposition reaction
displacement reaction
combination reaction
double displacement reaction
