Standard Form Flashcards
1
Q
10 ^ -1 =
A
1 / 10 = 0.1
2
Q
Standard form
A
it makes the calculations easier. Helps us identify the number of significant figures
3
Q
speed of vacuum 300000000 or
A
3 * 10^8
4
Q
in general writing in standard form
A
a * 10^k were 1 < a < 10
5
Q
if k is negative we have a
A
small number
6
Q
if k is positive we have a
A
big number
7
Q
540 000
A
5.4 * 10^5
8
Q
0.0000589
A
5.89 *10 ^-5
9
Q
(3 * 10^3) * (5 * 10^2)
A
3 * 5 * 10^2 * 10^3 =
15 * 10^5 = 1.5 * 10^6
10
Q
(5.2 * 10^-4) * ( 3 * 10^2)
A
- 2 * 3 * 10^-4 * 10^2=
15. 6 * 10^-2 = 1.56 * 10^-1
11
Q
( 6 * 10^6) / (2* 10^2)
A
6 * 10^6 / 2* 10^2 =
3 * 10^4
12
Q
The lower and upper bounds of a length of a piece of string given as 20cm to 2 significant figures
A
19.5 / 20.5
