Integrated Science Mock 2024

Question 1 of 50

The male part of a flower that produces pollen is the

Question 2 of 50

The transfer of pollen from an anther to a stigma is

Question 3 of 50

After fertilisation, the ovary of a flower develops into the

Question 4 of 50

A solar panel changes

Question 5 of 50

Solar cells are usually made from the semiconductor

Question 6 of 50

In a solar home system, the battery is used to

Question 7 of 50

A solar panel gives the most power when it

Question 8 of 50

Force is measured in which SI unit?

Question 9 of 50

What is the weight of a 50 kg student? (Take g = 10 N/kg.)

Question 10 of 50

Friction always acts

Question 11 of 50

Which instrument measures force?

Question 12 of 50

Which component lets current flow in one direction only?

Question 13 of 50

LED stands for

Question 14 of 50

In a circuit, a resistor is used to

Question 15 of 50

Silicon and germanium are examples of

Question 16 of 50

The first thing to do for a person with a minor burn is to

Question 17 of 50

Which hazard symbol warns that a substance can catch fire easily?

Question 18 of 50

Washing hands with soap mainly helps to

Question 19 of 50

Which practice reduces the risk of road accidents for pedestrians?

Question 20 of 50

A sample of lemon juice has a pH of 3. The juice is

Question 21 of 50

Which of these is a base used in the home?

Question 22 of 50

An acid reacts with a base to form

Question 23 of 50

Blue litmus paper turns red in

Question 24 of 50

Which organ removes urea from the blood and produces urine?

Question 25 of 50

The skin excretes water, salts and a little urea in

Question 26 of 50

The lungs excrete

Question 27 of 50

Gaseous exchange in the human lungs takes place in the

Question 28 of 50

Compared with inhaled air, exhaled air contains

Question 29 of 50

In humans, fertilisation normally takes place in the

Question 30 of 50

Which structure supplies the human foetus with food and oxygen from the mother?

Question 31 of 50

Making soap from fat or oil and an alkali is called

Question 32 of 50

Local "alata samina" (black soap) gets its alkali from

Question 33 of 50

Indigestion tablets often contain a mild base because

Question 34 of 50

Urea is made in the

Question 35 of 50

When we breathe in, the diaphragm

Question 36 of 50

A 240 V, 60 W bulb has a resistance of

Question 37 of 50

The vector of yellow fever is the

Question 38 of 50

Fractions with higher boiling points are collected

Question 39 of 50

Cracking of large hydrocarbons is done to produce

Question 40 of 50

The refractive index of a medium in which light travels at 2.25 × 10⁸ m/s is (c = 3 × 10⁸ m/s)

Question 41 of 50

The output of a NOR gate with inputs A = 0, B = 0 is

Question 42 of 50

Which single gate gives output 0 only when both inputs are 1?

Question 43 of 50

A heterozygous black guinea pig (Bb) is crossed with a white one (bb). The expected ratio of black to white offspring is

Question 44 of 50

Three resistors of 2 Ω, 3 Ω and 6 Ω are connected in parallel across 6 V. The total current is

Question 45 of 50

A block weighs 10 N in air and 6 N when fully immersed in water. Its relative density is

Question 46 of 50

A p-n junction diode conducts when the

Question 47 of 50

Myelinated neurons transmit impulses faster because

Question 48 of 50

An object 10 cm from a converging lens of focal length 15 cm forms an image that is

Question 49 of 50

A 1,200 kg car moving at 20 m/s stops in 4 s. The braking force is

Question 50 of 50

A man with blood group AB marries a woman with blood group O. Which blood group is impossible for their children?