#### Secondary School Sample Questions

The diagram below shows two parallelograms, DEFG and HGJK. DGJ and FGH is the straight line.

Find the value of x.

- 95°
- 100°
- 105°
- 115°

Simplify \((3k−1)(3k+1)+\) \( 9 (k+6)^2 \over 2\)

- \(27\over 2\)\(k^2+54k+161\)
- \(27\over 2\)\(k^2+54k-161\)
- \(27\over 2\)\(k^2-54k+161\)
- \(27\over 2\)\(k^2-54k-161\)

Calculate the value of \(({4 \over 5})^3\)

- \(64 \over 125\)
- \(1 \over 125\)
- (C) \(12 \over 125\)
- \(12 \over 15\)

Triangle P′Q′R′ in the following diagram is the image of the triangle PQRPQR under a reflection.

Find the axis of reflection.

- y−x−6=0
- y−2x+6=0
- y−x+6=0
- y−2x−6=0

The diagram shows the position and the direction of boats A,B and C on a river.

Both boats A and B move in the direction of the water current which flow with a velocity of \(w= 2i+\)\( 1\over 2\)\(j\) \(ms^-1\)

The velocity of boat A is

\(a=i+j\) \(ms^-1\)

The velocity of boat B is

\(a=3i+2j\) \(ms^-1\)

Determine how many times the resultant velocity of boat B compare to the resultant velocity of boat A.

- \(4\over 3\)
- \(5\over 3\)
- \(7\over 3\)
- \(8\over 3\)

The diagram shows the graph of

\(y=\)\(1\over 3\)\(x (x+2)(x−4)\)

Calculate the area of the shaded region.

- \(148 \over 9\) \(unit^2\)
- \(146 \over 9\) \(unit^2\)
- \(142 \over 9\) \(unit^2\)
- \(140 \over 9\) \(unit^2\)

When a signal is transmitted to an object at the bottom of the ocean, a reflection signal is received after 1.5 second. Another signal is reflected to the bottom of the sea and a reflection signal is received after 3 seconds.

If the signal moves in the ocean at a speed of 200 \(ms^-1\), what is the thickness of the object located at the bottom of the sea?

- 50 M
- 1000 M
- 150 M
- 200 M

The diagram shows an electric circuit.

Determine the effective resistance and current of the circuit.

Effective resistance \(Omega(Ω)\) | Electric current (A) | |
---|---|---|

A |
5 | 4.8 |

B |
25 | 4.8 |

C |
5 | 9.5 |

D |
25 | 9.5 |

The diagram shows the movement of substances across the semi-permeable membrane.

Which of the following is the **most precise** conclusion at the end of this experiment?

- The level of solution B rises
- The level of solution A decreases
- The water potential in solution A is higher than water potential in solution B
- Solution A is hypotonic, while, solution B is hypertonic

The diagram shows a process.

What is the process?

- Transpiration
- Photosynthesis
- Guttation
- Respiration

Calculate the number of oxygen atoms in 2.3 mol of oxygen gas, \(O2\).

[Avogadro constant,\(Na= 6.02* 10^23\) \(mol^-1\)]

- \(2.76 * 10^24\)
- \(2.76 * 10^23\)
- \(1.38 * 10^24\)
- \(1.38 * 10^23\)

Which of the following is the isomer of butanol?

- I. Butan-1-ol
- II. Butan-2-ol
- III. 2-methylpropan-1-ol
- IV. 2-methylpropan-2-ol

- I, II & III
- II, III & IV
- I, III & IV
- All of the above

Which of the following are **not** negative effects of irregular menstruation?

- I. Having difficult in family planning
- II. Decrease body weight
- III. Has a stable blood content in the body
- IV. Infertility

- I & II
- II & III
- I, II & III
- II, III & IV

The diagram shows a cross-breeding of two traits of humans.

What is the ratio of black hair to brown hair in the first generation?

- 1 : 3
- 3 : 1
- 1 : 1
- 4 : 0

The diagram shows vector A and B.

What are the diseases spread by these vectors?

Vector A | Vector B | |
---|---|---|

A |
Tuberculosis | Cholera |

B |
Goiter | Malaria |

C |
Cholera | Dengue fever |

D |
Malaria | Cholera |

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