Quiz_________________?
1 kilogram (kg) of solid X at 10C and 1 kg of solid Y 10C each absorb 5 joules of heat
energy. The final temperatures on X and Y is 15C and 20C, respectively. Compared to X, Y
must have a lower:F -
Answer✅
specific heat
Quiz_________________?
30 students in a class carefully measure the length and width of 20 peanut shells. They also
count the number and note the size of the peanuts inside. This information is recorded on
various graphs showing the numbers of nuts and the different sizes. The collected evidence
of the peanuts gives the students an idea of the extent of: -
Answer✅
variation within a species
Quiz_________________?
A *tincture* is a solution in which: -
Answer✅
alcohol is the solvent
1
, Quiz_________________?
a cell which manufactures a large amount of protein for export would have an abundance of
organelles called -
Answer✅
ribosomes
Quiz_________________?
A cell which manufactures a large amount of protein for export would have an abundance of
organelles called: -
Answer✅
ribosomes
Quiz_________________?
a circuit contains three 3ohn ( n) resistors in series. What is the equivalent resistance of
This combination? -
Answer✅
9W
Quiz_________________?
A drop of dilute ammonium hydroxide (NH4OH) is placed on one side of a slide containing
a large number of swimming paramecium. Under this condition, which of these behaviors of
the paramecia will be observed? -
Answer✅
They will eventually all swim away from the ammonium hydroxide
2
, Quiz_________________?
A gram stain is an important technique used in the laboratory that -
Answer✅
distinguishes between different kinds of bacterial cell walls
Quiz_________________?
A lab technician has the choice of four different enzymes to use in an experiment that will
run at 25C. The optimal temperatures of enzymes using the Kelvin scale are: Enzyme A: 273
K, Enzyme B: 298 K, Enzyme C: 310 K, Enzyme D: 325 K. Which enzyme would be best to
use in this experiment? -
Answer✅
Enzyme B
273+25C = 298 K
Quiz_________________?
A lens that focuses distant light to a single point is known as a : -
Answer✅
converging (convex) lens
Quiz_________________?
A magician rapidly pulls a tablecloth from a table, leaving the dishes undisturbed. Which of
these principles of physics explains this "trick"? -
Answer✅
Objects at rest tend to remain at rest.
3
, Quiz_________________?
A material that settles out of a reaction is termed a(n) -
Answer✅
emulsion
-egg yolk, butter, mayonaise
Quiz_________________?
A method for determining the blood alcohol content of a subject is to -
Answer✅
use a Breathalyzer
Quiz_________________?
A person blows his breath into a straw that is placed in limewater. The limewater becomes
cloudy because the person's breath contains: -
Answer✅
carbon dioxide
Quiz_________________?
A person who was in an auto accident has formed a blood clot at the site of the injury. One
event that can lead to formation of a blood clot is that: -
Answer✅
ruptured platelets release thromboplastin
Quiz_________________?
4