Question Paper
Class / Subject: Class 8 (ICSE) · Mathematics
Chapter: Chapter 2 — Chapter 2: Exponents (Powers)
Time Allowed: 32 minutes
Max Marks: 16
1. What is 3⁴? [1]
(A) 81
(B) 12
(C) 34
(D) 7
2. What is the multiplication law of exponents? [1]
(A) a^m × a^n = a^(m+n)
(B) a^m × a^n = a^(m×n)
(C) a^m × a^n = a^(m-n)
(D) a^m × a^n = a^m
3. What is 2³ × 2²? [1]
(A) 2⁵
(B) 2⁶
(C) 2¹
(D) 4⁵
4. What is the power law of exponents? [1]
(A) (a^m)^n = a^(mn)
(B) (a^m)^n = a^(m+n)
(C) (a^m)^n = a^m
(D) (a^m)^n = a^n
5. What is a^0 for any non-zero a? [1]
(A) 1
(B) 0
(C) a
(D) Undefined
6. What does a negative exponent represent? [1]
(A) A reciprocal (1/a^n)
(B) A negative number always
(C) Zero
(D) An error
7. What is 2^(-2)? [1]
(A) 1/4
(B) -4
(C) -2
(D) 4
8. Why learn exponent laws? [1]
(A) To simplify complex calculations
(B) No reason
(C) It's not useful
(D) Only for tests
9. What is 3⁴? [1]
(A) 81
(B) 12
(C) 34
(D) 7
10. What is the multiplication law of exponents? [1]
(A) a^m × a^n = a^(m+n)
(B) a^m × a^n = a^(m×n)
(C) a^m × a^n = a^(m-n)
(D) a^m × a^n = a^m
11. What is 2³ × 2²? [1]
(A) 2⁵
(B) 2⁶
(C) 2¹
(D) 4⁵
12. What is the power law of exponents? [1]
(A) (a^m)^n = a^(mn)
(B) (a^m)^n = a^(m+n)
(C) (a^m)^n = a^m
(D) (a^m)^n = a^n
13. What is a^0 for any non-zero a? [1]
(A) 1
(B) 0
(C) a
(D) Undefined
14. What does a negative exponent represent? [1]
(A) A reciprocal (1/a^n)
(B) A negative number always
(C) Zero
(D) An error
15. What is 2^(-2)? [1]
(A) 1/4
(B) -4
(C) -2
(D) 4
16. Why learn exponent laws? [1]
(A) To simplify complex calculations
(B) No reason
(C) It's not useful
(D) Only for tests