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The correct answer is D. Braking of a bicycle on a road.
When braking a bicycle on a road friction is required to oppose motion.
sharon kalunda answered the question on July 29, 2019 at 13:51
- Which of the following pairs of machines consists only of inclined planes (Solved)
Which of the following pairs of machines consists only of inclined planes
A. Ladder and staircase.
B. Staircase and wheelbarrow.
C. Claw hammer and ladder.
D. Spade and craw bar.
Date posted: July 29, 2019. Answers (1)
- The method of grazing that would require the largest piece of land to practice is(Solved)
The method of grazing that would require the largest piece of land to practice is
A. herding
B. stall feeding
C. tethering
D. paddocking.
Date posted: July 29, 2019. Answers (1)
- The following are some characteristics of animals:
(i) Varying body temperatures.
(ii) Lay eggs.
(iii) Have scales.
(iv) Have a backbone.
Which two characteristics are...(Solved)
The following are some characteristics of animals:
(i) Varying body temperatures.
(ii) Lay eggs.
(iii) Have scales.
(iv) Have a backbone.
Which two characteristics are for both toad and duck?
A. (i) and (iii).
B. (i) and (ii).
C. (ii) and (iv).
D. (iii) and (iv).
Date posted: July 29, 2019. Answers (1)
- Which one of the following pairs consists only of farm animals that produce mutton? (Solved)
Which one of the following pairs consists only of farm animals that produce mutton?
A. Cow and goat.
B. Goat and sheep.
C. Cow and sheep.
D. Sheep and pig.
Date posted: July 29, 2019. Answers (1)
- The chart below shows a simple classification of plants.
Which of the following pairs represents Y and Z(Solved)
The chart below shows a simple classification of plants.
Which of the following pairs represents Y and Z
Y------------- Z
A Carrots --------Sisal
B Kale ----------Onion
C Moss ----------Cypress
D Sugarcane------- Fern
Date posted: July 29, 2019. Answers (1)
- Which one of the following pairs consists only of plants that directly feed on insects?(Solved)
Which one of the following pairs consists only of plants that directly feed on insects?
A. Pitcher plant and sundew.
B. Mushroom and butter wort.
C. Sunflower and pitcher
D. Sundew and toadstool.
Date posted: July 29, 2019. Answers (1)
- Pupils constructed a weather instrument Inner tube
The mistake made in the construction was (Solved)
Pupils constructed a weather instrument Inner tube
The mistake made in the construction was
A. Using coloured water
B. Placement of the scale
C. Using a narrow tube
D. Closing the cork tightly.
Date posted: July 29, 2019. Answers (1)
- The following are some effects of drug abuse:
(i) Rape
(ii) Addiction
(iii) Truancy
(iv)Impaired judgment
(v) Drug induced accidents .
Which one of the...(Solved)
The following are some effects of drug abuse:
(i) Rape
(ii) Addiction
(iii) Truancy
(iv)Impaired judgment
(v) Drug induced accidents .
Which one of the following consists only of social effects?
A. (i) (ii) (iv).
B. (ii) (iii) (iv).
C. (i) (iii) (v).
D. (i) (iv) (v).
Date posted: July 29, 2019. Answers (1)
- Which one of the following components of blood is correctly matched with its function? (Solved)
Which one of the following components of blood is correctly matched with its function?
Blood component------------------- Function
A. Red blood cells-------------------- clotting of blood
B. White blood cells------------------- transport oxygen.
C. Platelets -------------------------- fight germs.
D. Plasma -----------------------------transport food.
Date posted: July 29, 2019. Answers (1)
- Use of excess fertilizers will mainly pollute (Solved)
Use of excess fertilizers will mainly pollute
A. Soil and water
B. Water only
C. Soil and air
D. Soil only.
Date posted: July 29, 2019. Answers (1)
- Which one of the following pairs consists only of components of environment that produce carbon dioxide?(Solved)
Which one of the following pairs consists only of components of environment that produce carbon dioxide? A. Air and plants.
B. Animals and plants.
C. Water and air.
D. Soil and animals.
Date posted: July 29, 2019. Answers (1)
- Which one of the following groups of symptoms is correctly matched with the deficiency disease? (Solved)
Which one of the following groups of symptoms is correctly matched with the deficiency disease?
Rickets------- ------Anaemia------------- Kwashiorkor
A. Bowlegged-----------brown hair----------- wrinkled face.
B. Knock kneed---------pale eyes------------ potbellied.
C. Rapid heartbeat -----potbellied--------- breathlessness
D. Brown hair ----------wrinkled face -------bowlegged.
Date posted: July 29, 2019. Answers (1)
- Which one of the following consists of foods that are mainly for body building? (Solved)
Which one of the following consists of foods that are mainly for body building?
A. Beef, cassava, potatoes.
B. Mutton, maize, pawpaw.
C. Peas, beans, eggs.
D. Carrots, bananas, tomatoes.
Date posted: July 29, 2019. Answers (1)
- Which one of the following is a source of electricity? (Solved)
Which one of the following is a source of electricity?
A Torch.
B Dam.
C Solar panel.
D Biogas plant.
Date posted: July 29, 2019. Answers (1)
- Formation of a rainbow can be demonstrated by the following activities except when (Solved)
Formation of a rainbow can be demonstrated by the following activities except when
A. Observing the sun through a horizontally-held transparent biro pen casing
B. Placing a mirror in water to face the sun
C. Spraying water in the air from the mouth in bright sunshine
D. Placing a biro pen casing on water in a glass container.
Date posted: July 29, 2019. Answers (1)
- The energy transformation that takes place when a torch that uses batteries is switched on is (Solved)
The energy transformation that takes place when a torch that uses batteries is switched on is
A. electrical--->chemical--->heat--->light
B. electrical--->heat---->chemical--->light
C. chemical--->electrical--->light--->heat
D. chemical----> electrical--->heat-->light
Date posted: July 29, 2019. Answers (1)
- A mixture of salt solution, maize grains and iron filings can be separated by (Solved)
A mixture of salt solution, maize grains and iron filings can be separated by
A. Filtering, Use of magnet, evaporation
B. Decanting, picking, winnowing
C. Filtering, decanting, evaporation
D. Winnowing, use of magnet, picking.
Date posted: July 29, 2019. Answers (1)
- Which one of the following statements is true about liquids and gases? (Solved)
Which one of the following statements is true about liquids and gases?
A. Liquids have definite volume
B. Gases have definite volume.
C. Liquids have definite shape.
D. Gases have definite shape.
Date posted: July 29, 2019. Answers (1)
- Which one of the following pairs of processes are as a result of increase and decrease in temperature respectively?(Solved)
Which one of the following pairs of processes are as a result of increase and decrease in temperature respectively?
Increase--------------- Decrease
A. Freezing ----------------condensation
B. Expansion-------------- evaporation
C. Contraction ------------expansion
D. Melting ---------------condensation
Date posted: July 29, 2019. Answers (1)
- Which one of the following components of air is used for preservation of soft drinks?(Solved)
Which one of the following components of air is used for preservation of soft drinks?
A. Carbon dioxide.
B. Nitrogen.
C. Oxygen.
D. Inert gases.
Date posted: July 29, 2019. Answers (1)