Integrated Science Mock 2023

Question 1 of 50

Electric current is measured with

Question 2 of 50

Two 4 Ω resistors are connected in series. What is their total resistance?

Question 3 of 50

Which material is a good electrical insulator?

Question 4 of 50

The upward force a fluid exerts on an object placed in it is called

Question 5 of 50

Malaria is caused by

Question 6 of 50

Sleeping nets treated with insecticide mainly prevent

Question 7 of 50

Palm wine becomes alcoholic because

Question 8 of 50

The gas given off when yeast ferments sugar is

Question 9 of 50

"Sobolo" is a local drink made mainly from

Question 10 of 50

Which gas makes up about 78% of the air?

Question 11 of 50

About what percentage of air is oxygen?

Question 12 of 50

Which gas in air is used by plants for photosynthesis?

Question 13 of 50

Limewater turns milky when it reacts with

Question 14 of 50

The main gas in natural gas is

Question 15 of 50

The basic unit of the nervous system is the

Question 16 of 50

The central nervous system is made up of the

Question 17 of 50

Quickly pulling your hand away from a hot pot is an example of

Question 18 of 50

The joint at the knee is a

Question 19 of 50

Muscles are joined to bones by

Question 20 of 50

When the biceps contracts, the arm

Question 21 of 50

Which disease mainly damages the alveoli and is strongly linked with smoking?

Question 22 of 50

A current of 2 A flows through a 6 Ω resistor. What is the voltage across it?

Question 23 of 50

A 100 W bulb is used for 5 hours. How much energy does it use?

Question 24 of 50

Archimedes' principle states that the upthrust on an object in a fluid equals

Question 25 of 50

An object weighs 10 N in air and 6 N in water. What is the upthrust on it?

Question 26 of 50

Adding small amounts of impurities to a semiconductor to change its conductivity is called

Question 27 of 50

A transistor can be used as

Question 28 of 50

A light-dependent resistor (LDR) has a resistance that

Question 29 of 50

Which disease is caused by a virus?

Question 30 of 50

Ringworm is caused by

Question 31 of 50

Crude oil is separated into fractions such as petrol and diesel by

Question 32 of 50

Ghana's first major offshore oil field, which started production in 2010, is the

Question 33 of 50

Complete burning of methane produces

Question 34 of 50

The gap between two neurones is a

Question 35 of 50

Which joint allows the head to turn from side to side?

Question 36 of 50

The relative molecular mass of glucose C₆H₁₂O₆ (C = 12, H = 1, O = 16) is

Question 37 of 50

An atom loses two electrons. The particle formed is

Question 38 of 50

A pure substance boils at 78 °C. It is most likely

Question 39 of 50

In the carbon cycle, fossil fuels are formed from

Question 40 of 50

The part of the nephron where filtration occurs is the

Question 41 of 50

A body of mass 5 kg is lifted 4 m in 2 s (g = 10 m/s²). The power is

Question 42 of 50

Eutrophication of water bodies is mainly caused by

Question 43 of 50

In an experiment testing the effect of fertiliser on plant height, the controlled variables include

Question 44 of 50

A result that differs greatly from others in repeated trials is

Question 45 of 50

Precision of measurements is improved by

Question 46 of 50

A 10 kg box on a level floor needs 30 N to move it at constant speed (g = 10 m/s²). The coefficient of friction is

Question 47 of 50

A Class B fire involving petrol is best put out with

Question 48 of 50

The heart pumps 70 mL per beat at 72 beats per minute. Cardiac output is about

Question 49 of 50

A 60 W bulb runs for 5 hours. The energy used is

Question 50 of 50

In soap making, the by-product glycerol comes from