Sci

Question 1

What is the primary purpose of fermentation?

Answer 1

To convert sugars into acids, gases, or alcohol in the absence of oxygen.

Question 2

True or False: Fermentation requires oxygen.

Answer 2

False

Question 3

What are the two main types of fermentation?

Answer 3

Alcoholic fermentation and lactic acid fermentation.

Question 4

Fill in the blank: Photosynthesis occurs mainly in the ______ of plants.

Answer 4

chloroplasts

Question 5

What is the overall equation for photosynthesis?

Answer 5

6CO2 + 6H2O + light energy → C6H12O6 + 6O2

Question 6

True or False: Photosynthesis occurs at night.

Answer 6

False

Question 7

What is Hooke’s Law?

Answer 7

The principle that the force needed to extend or compress a spring is proportional to the distance it is stretched or compressed.

Question 8

Fill in the blank: Hooke’s Law can be expressed as F = kx, where F is the ______.

Answer 8

force

Question 9

What does the ‘k’ in Hooke’s Law represent?

Answer 9

The spring constant.

Question 10

True or False: The gravitational pull of an object depends on its mass and the distance from its center.

Answer 10

True

Question 11

What is the formula for gravitational force?

Answer 11

F = G * (m1 * m2) / r^2

Question 12

What does ‘G’ represent in the gravitational force formula?

Answer 12

The gravitational constant.

Question 13

Fill in the blank: The periodic table organizes elements based on their ______.

Answer 13

atomic number

Question 14

What are the rows in the periodic table called?

Answer 14

Periods

Question 15

What are the columns in the periodic table called?

Answer 15

Groups or families

Question 16

True or False: Noble gases are highly reactive.

Answer 16

False

Question 17

What element is represented by the symbol ‘O’?

Answer 17

Oxygen

Question 18

What is the atomic number of carbon?

Answer 18

6

Question 19

Fill in the blank: The process by which plants convert sunlight into chemical energy is called ______.

Answer 19

photosynthesis

Question 20

What type of energy is captured during photosynthesis?

Answer 20

Light energy

Question 21

What is produced as a byproduct of photosynthesis?

Answer 21

Oxygen

Question 22

Fill in the blank: The primary sugar produced during photosynthesis is ______.

Answer 22

glucose

Question 23

True or False: Fermentation can occur in both plants and animals.

Answer 23

True

Question 24

What is lactic acid fermentation commonly associated with?

Answer 24

Muscle fatigue during intense exercise.

Question 25

What do you call the energy stored in a compressed spring according to Hooke's Law?

Answer 25

Potential energy

Question 26

What is the gravitational pull of Earth on an object at its surface?

Answer 26

Approximately 9.81 m/s²

Question 27

Fill in the blank: Elements in the same group of the periodic table typically have similar ______.

Answer 27

chemical properties

Question 28

What is the light-dependent reaction of photosynthesis?

Answer 28

The process that converts light energy into chemical energy in the form of ATP and NADPH.

Question 29

What type of elements are found in Group 1 of the periodic table?

Answer 29

Alkali metals

Question 30

True or False: The atomic mass of an element is the weighted average of the isotopes of that element.

Answer 30

True

Question 31

What is the function of chlorophyll in photosynthesis?

Answer 31

To absorb light energy.

Question 32

What is produced during alcoholic fermentation?

Answer 32

Ethanol and carbon dioxide.

Question 33

Fill in the blank: The periodic table was first organized by ______.

Answer 33

Dmitri Mendeleev

Question 34

What are isotopes?

Answer 34

Atoms of the same element with different numbers of neutrons.

Question 35

True or False: All elements on the periodic table are metals.

Answer 35

False