Advertisements
Advertisements
प्रश्न
The following graph shows the change in temperature of a block of ice when heated. Use the graph to answer the following questions:
- For how many seconds did the ice block have no change in temperature?
- For how long was there a change in temperature?
- After how many seconds of heating did the temperature become constant at 0°C?
- What was the temperature after 25 seconds?
- What will be the temperature after 1.5 minutes? Justify your answer.
Advertisements
उत्तर
- In the first 20 s, the ice block have no change in temperature.
- There was a change in temperature from 20 s to 50 s, i.e. 50 – 20 = 30 s.
- Observing the graph, we see that after 50 s of heating the temperature became constant.
- 20°C was the temperature after 25 s.
- Since, the temperature became constant at 100°C after 50 s heating, so the temperature will be 100°C even after 1.5 min.
APPEARS IN
संबंधित प्रश्न
The following graph shows the temperature forecast and the actual temperature for each day of a week.
- On which days was the forecast temperature the same as the actual temperature?
- What was the maximum forecast temperature during the week?
- What was the minimum actual temperature during the week?
- On which day did the actual temperature differ the most from the forecast temperature?
Use the tables below to draw linear graphs.
Population (in thousands) of men and women in a village in different years.
| Year | 2003 | 2004 | 2005 | 2006 | 2007 |
| Number of men | 12 | 12.5 | 13 | 13.2 | 13.5 |
| Number of women | 11.3 | 11.9 | 13 | 13.6 | 12.8 |
Can there be a time-temperature graph as follows? Justify your answer.
Draw the temperature-time graph in each of the following cases:
| Time (in hours): | 7:00 | 9:00 | 11:00 | 13:00 | 15:00 | 17:00 | 19:00 | 21:00 |
| Temperature (°F) in: | 100 | 101 | 104 | 102 | 100 | 99 | 100 | 98 |
Find out from the growth chart
- Between which days did the length of the plant change the most?
A graph that displays data that changes continuously over periods of time is ______.
A line graph can also be a whole unbroken line.
Study the given graph and complete the corresponding table below.
Plot a line graph for the variables p and q where p is two times q i.e, the equation is p = 2q. Then find.
- the value of p when q = 3
- the value of q when p = 8
Plot a line graph for the variables p and q where p is two times q i.e, the equation is p = 2q. Then find the value of q when p = 8
