Geography Questions and Answers - Form 1 End Term 1 2021

GEOGRAPHY
FORM 1
END TERM EXAM
TERM 1 2021

INSTRUCTIONS

• Answer all the questions

1. Give three components of the solar system. (3mks)
2.  
   1. Identify three types of high level clouds (3mks)
   2. State five factors that should be considered before sitting a weather station (5mks)
3. What are the importance of weather forecasting? (5mks)
4.    
   1. Explain how mathematics is related to geography (2mks)
   2. State four importance of studying geography (4mks)
5. Name the two discontinuities of the earth’s sracture. (2mks)
6.    
   1. List down four forms of precipitation. (4mks)
   2. What is a Stevenson screen? (2mks)
7.    
   1. Name three instruments found in a Stevenson screen. (3mks)
   2. State and explain five qualifications which makes Stevenson screen suitable four its work. (5mks)
8. With the help of a well labelled diagram, explain the formation of frontal /cyclonic rainfall. (5mks)
9.    
   1. Give three methods of predicting weather (3 mks)
   2. Why is weather predictions by the weather man in the recent past not been accurate (3 mks)
10.    
    1. Name and describe two types of environment (4mks)
    2. The diagram below shows a movement of the earth
       
       1. Identify the movement (1mk)
       2. State four effects of the above movement (4mks)
11.    
    1. Give two dates in a year when the earth experiences equal days and nights in both northern and southern hemisphere. (2mks)
    2. Supposing the local time in Lusaka, 31◦ E is 9.30pm, what time would it be at Greenwich Meridian?(2mks)
12. Explain the effect of the following forces for the shape of the earth.
    1. Gravitational force (2mk)
    2. Centrifugal force (2mk)
    3. Centripetal force (2mk)

MARKING SCHEME

1. Give three components of the solar system. (3mks)
   • the sun
   • the planets
   • Asteroids
   • meteors
   • comets
2.    
   1. Identify three types of high level clouds (3mks)
      • Cirrus
      • Cirro-cumulus
      • Cirro stratus
        
   2. State five factors that should be considered before sitting a weather station (5mks)
      • The area should be away from building/trees/tall objects
      • The ground should be free from flooding
      • The area should have a wide view/open space
      • The area should be secure
      • The ground should be gently sloping
3. What are the importance of weather forecasting? (5mks)
   • It enables farmers to plan their farming activities
   • It helps people to choose the clothing for the day
   • It influences design of houses.
   • It guides in the timing of sporting |tourist activities.
   • It helps in averting natural disasters related to weather.
   • It guides in landing and taking off of aircrafts.
   • It helps in planning military activities.
   • It guides fishing activities  
4.     
   1. Explain how mathematics is related to geography (2mks)
      • mathematics principles formulae are used in Geography to calculate distance and population density
      • Geography information can ge analyses and presented accurately through the application of mathematics
      • Geography concepts are applied in calculating direction bearing in mathematics (2marks)
        
   2. State four importance of studying geography (4mks)
      • it helps to develop skills
      • it enables learners to understand/appreciate different environmental influences
      • it encourages international awareness/co-operation
      • it helps learners to appreciate important social values
      • it promotes positive attitudes towards protection of resources
      • it leads to development of career opportunities
      • it helps learners to manage time properly
      • it enables learners to explain the origine and information of the earth and land forms
        
5. Name the two discontinuities of the earth’s structure. (2mks)
   • Mohorovicic/moho
   • Gutenburg
6.        
   1. list down four forms of precipitation. (4mks)
      • rain
      • Hails
      • Dew
      • Fog/mist
        
   2. What is a Stevenson screen? (2mks)
      • It is a white wooden box in which meteorological instruments are kept.
7.    
   1. Name three instruments found in a Stevenson screen. (3mks)
      • Maximum thermometer
      • Minimum thermometer
      • Six‘s thermometer
      • Hygrometer / (wet bulb and dry bulb thermometer)
        
   2. State and explain five qualifications which makes Stevenson screen suitable four its work. (5mks)
      • Painted white for little absorption of solar heat / energy
      • Made of wood which is a bad conductor of heat
      • Well-ventilated / lourres to allow easier flow of air inside it.
      • Raised above the ground to prevent contact with terrestrial radiation
      • Has double roof which acts as an insulator to prevent direct heating from the sun. - Has metal legs to protect it from termites / Ants
        
8. With the help of a well labelled diagram, explain the formation of frontal /cyclonic rainfall. (5mks)
   • Formation
   • Warm moist air mass meets with a cold air mass
   • The warm air is forced to rise since it is less dense
   • It cools as it rises at the line of contact with cold air (front)
   • The moisture condenses forming clouds resulting in frontal rain.
9.      
   1. Give three methods of predicting weather (3 Mks)
      • Use of modern methods
      • Use of traditional methods
      • Use of weather lore
        
   2. Why is weather predictions by the weather man in the recent past not been accurate (3mks)
      • Defection instruments
      • Human error
      • Abrupt change of weather systems.
10.        
    1. Name and describe two types of environment (4mks)
       • physical environment-includes the natural physical conditions of weather, soil, etc
       • human environment-comprises human activities like mining
       • The diagram below shows a movement of the earth
    2.  
          
       1. Identify the movement (1mk)
          • Earth revolution
            
       2. State four effects of the above movement (4mks)
          • It causes the four seasons namely Summer, Autumn, winter and Spring
          • It causes varying lengths of day and night at different times of the year
          • It causes changes in the position of the midday sun at different times of the year.
          • It cause lunar eclipse
11.     
    1. Give two dates in a year when the earth experiences equal days and nights in both northern and southern hemisphere. (2mks)
       • 21st March
       • 23rd september
    2. Supposing the local time in Lusaka, 31◦ E is 9.30pm, what time would it be at Greenwich Meridian? (2mks)
       • 31◦-0◦ = 31x4 =124mins =2hrs 4mins
       • Greenwich time = 9.30 – 2hrs 4mins =7.26am
         
12. Explain the effect of the following forces for the shape of the earth.
    1. Gravitational force (2mk)
       • Pulls materials from all directions to the centre of the earth bringing out rounding effect
    2. Centrifugal force (2mk)
       • Causes bulge at equator
    3. Centripetal force (2mk)
       • Causes bulge at equator