Question
Define speed. What is the SI unit of speed?
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
| Time in seconds | Distance in metres |
| 0 | 0 |
| 1 | 1 |
| 2 | 8 |
| 3 | 27 |
| 4 | 64 |
| 5 | 125 |
| 6 | 216 |
| 7 | 343 |
|
Ion
|
Valency(Charges)
|
Ion
|
Valency(Charge)
|
|
Sodium ion
|
$1+$
|
Bromide ion
|
$1-$ |
|
Ammonium ion
|
$1+$
|
Hydroxide ion
|
$1-$ |
|
Calcium ion
|
$2+$
|
Sulphate ion
|
$2-$ |
|
Lead ion
|
$2+$
|
Phosphate ion
|
$3-$ |