First Term Review Assessment Questions Basic Technology JSS 2 First Term Examination Week 12

Basic Technology JSS 2 First Term Revision (Week 12)

Part A: Review and Revision (FAQs)

1. What is a circle?
   • A circle is a shape where all points are equidistant from a central point.
2. What is the difference between a tangent and a secant?
   • A tangent touches the circle at one point, while a secant intersects the circle at two points.
3. What does the radius of a circle represent?
   • The radius is the distance from the center of the circle to any point on its edge.
4. How is the diameter of a circle calculated?
   • The diameter is twice the length of the radius (d = 2r).
5. What are concentric circles?
   • Concentric circles are circles that share the same center but have different radii.
6. What is a chord?
   • A chord is a line segment that connects two points on the circumference of a circle.
7. What is the formula for the area of a circle?
   • The area is calculated as A = πr².
8. What are the different types of triangles?
   • The types include equilateral, isosceles, and scalene triangles.
9. What is an inscribed angle?
   • An inscribed angle is formed by two chords in a circle which meet at a point on the circle.
10. How do you construct a triangle using a compass and ruler?
    • Use the compass to draw circles with given lengths, then connect the intersections with a ruler.
11. What is a sector of a circle?
    • A sector is the region bounded by two radii and the arc between them.
12. How do you calculate the circumference of a circle?
    • The circumference is calculated using C = 2πr or C = πd.
13. What is the purpose of bisecting an angle?
    • Bisecting an angle divides it into two equal parts.
14. What does it mean to circumscribe a circle around a triangle?
    • It means to draw a circle that passes through all the vertices of the triangle.
15. What is a normal line in relation to a circle?
    • A normal line is perpendicular to the tangent at the point of contact.
16. How is the area of a triangle calculated?
    • The area can be calculated using A = 1/2 × base × height.
17. What are ferrous and non-ferrous metals?
    • Ferrous metals contain iron, while non-ferrous metals do not.
18. What is the significance of π (pi) in geometry?
    • Pi is a constant used to calculate the circumference and area of circles.
19. What tools are commonly used for geometric constructions?
    • A compass, ruler, and protractor are commonly used.
20. Why is it important to understand angles in construction?
    • Understanding angles ensures precision and accuracy in building and design.

Part B: Objective Questions (Fill-in-the-Blank with Options)

1. The distance from the center to the circumference of a circle is called the ______.
   a) Diameter
   b) Radius
   c) Chord
   d) Arc
2. A line that touches a circle at one point is known as a ______.
   a) Chord
   b) Tangent
   c) Diameter
   d) Secant
3. The formula for the circumference of a circle is ______.
   a) πr²
   b) 2πr
   c) d²
   d) 4r
4. The longest chord of a circle is the ______.
   a) Radius
   b) Diameter
   c) Arc
   d) Tangent
5. A triangle with all sides equal is called an ______ triangle.
   a) Isosceles
   b) Scalene
   c) Equilateral
   d) Right
6. The area of a triangle is calculated using ______.
   a) πr²
   b) base × height
   c) 1/2 × base × height
   d) 3a
7. An angle formed by two radii is called a ______ angle.
   a) Central
   b) Inscribed
   c) Exterior
   d) Right
8. The sum of the angles in a triangle is always ______ degrees.
   a) 90
   b) 180
   c) 270
   d) 360
9. A circle inscribed in a triangle touches all ______ of the triangle.
   a) Angles
   b) Vertices
   c) Sides
   d) Centers
10. A secant line intersects a circle at ______ points.
    a) One
    b) Two
    c) Three
    d) Four
11. The point where two lines meet is called a ______.
    a) Angle
    b) Vertex
    c) Side
    d) Intersection
12. The arc of a circle is part of the ______.
    a) Chord
    b) Radius
    c) Circumference
    d) Sector
13. A ______ triangle has two sides of equal length.
    a) Scalene
    b) Right
    c) Isosceles
    d) Equilateral
14. The area of a circle is given by the formula ______.
    a) 2πr
    b) πd
    c) πr²
    d) 4r²
15. The midpoint of a line segment is the point that divides it into ______.
    a) Two unequal parts
    b) Two equal parts
    c) Three equal parts
    d) Four equal parts
16. An angle measuring more than 90 degrees is called an ______ angle.
    a) Acute
    b) Right
    c) Obtuse
    d) Reflex
17. The sides of a right triangle are known as ______.
    a) Hypotenuse
    b) Legs
    c) Chords
    d) Arcs
18. A circle can be constructed using a ______ and a compass.
    a) Protractor
    b) Ruler
    c) Square
    d) Divider
19. An equilateral triangle has angles measuring ______ degrees each.
    a) 60
    b) 90
    c) 45
    d) 30
20. A triangle with no sides equal is called a ______ triangle.
    a) Isosceles
    b) Scalene
    c) Right
    d) Equilateral

Part C: Theory Questions (Short Answer)

1. Define a circle and its parts.
2. What is the significance of the diameter in a circle?
3. Explain the differences between a tangent and a secant.
4. How do you calculate the circumference of a circle?
5. Describe the properties of isosceles triangles.
6. What is the relationship between angles and triangles?
7. Explain how to inscribe a circle in a triangle.
8. Define a sector of a circle.
9. How do you construct a right triangle using a compass?
10. What are the different types of angles and their properties?
11. How can you identify the center of a circle?
12. What does it mean to bisect an angle?
13. How are circles used in real-life applications?
14. What is the formula for calculating the area of a triangle?
15. Describe the significance of the arc in a circle.
16. What tools are used for geometric constructions?
17. How do you calculate the area of a circle?
18. What is an inscribed angle, and how is it formed?
19. Explain the difference between ferrous and non-ferrous metals.
20. Why is understanding geometry important in construction?

Part D: True or False Questions

1. A diameter is always longer than a radius.
2. All circles have the same area.
3. A tangent line can cross the circle at two points.
4. The radius is half the diameter.
5. Concentric circles have different centers.
6. A secant intersects a circle at two points.
7. The area of a triangle can be calculated using base times height.
8. A circle has a finite number of lines of symmetry.
9. The angle formed between two chords is called an inscribed angle.
10. An equilateral triangle has all sides of different lengths.
11. The circumference of a circle is related to its radius.
12. The arc length of a circle depends on its radius.
13. A normal line to a circle is perpendicular to the radius.
14. All angles in a triangle add up to 360 degrees.
15. A sector of a circle is always less than 180 degrees.
16. A scalene triangle has at least two equal sides.
17. The perimeter of a circle is known as its area.
18. An obtuse angle is less than 90 degrees.
19. The center of a circle is always inside the circle.
20. The area of a triangle is calculated as 1/2 × base × height.

Part E: Fill-in-the-Gaps Questions

1. The center of a circle is the point from which all points on the circle are ______.
2. The longest distance across a circle is called the ______.
3. An angle that measures exactly 90 degrees is known as a ______ angle.
4. A triangle with one angle greater than 90 degrees is called an ______ triangle.
5. The sum of the angles in any triangle is ______ degrees.
6. The ______ is the distance around a circle.
7. A triangle with all angles less than 90 degrees is called an ______ triangle.
8. The point where two lines intersect is called a ______.
9. A ______ is a segment that connects two points on a circle.
10. The area of a circle is represented by the formula ______.
11. A line that crosses a circle at two points is known as a ______.
12. The vertex of an inscribed angle lies on the ______.
13. The distance from the center to the circumference is the ______.
14. A sector is a portion of a circle enclosed by two ______.
15. The radius is equal to half the ______ of a circle.
16. In geometry, a point has ______ dimensions.
17. A regular polygon has all sides and angles ______.
18. The process of drawing a circle is called ______ construction.
19. The length of an arc can be calculated using the ______ of the circle.
20. A triangle can be classified by its sides as scalene, isosceles, or ______.

This revision guide covers key concepts from the term and helps reinforce learning through various question types.