Thermal Change 120
100
80
-A
60
Temmperature (Celsius)
40
20
0
1 2 3 4 5 6
7
Two objects that are at different temperatures are added to a container of water and then the container is closed. The temperature
is taken at one-minute intervals. The graph shows the change in temperature for the objects over the next 7 minutes. Which
statement is correct?
A)
The objects are different in mass.
B)
The water has more mass than both objects.
C)
The water started out lower than 40°C
Eliminate
D)
The water released energy into the objects.

Scientists are conducting a study on the effectiveness of a new drug on memory loss. they are giving some of the test subjects the new drug to find out if it improves their long-term memory. which are possible limitations of this study? check all that apply. a) test subjects may want to participate in additional experiments. b) test subjects may think they should be paid more. c) test subjects may get bored and want to quit early. d) test subjects may have to travel during the experiment. e) test subjects may have full-time jobs. this is multiple choice. you for the !