Science

• 1. According to Charles's Law, what will happen to the temperature of a gas as the volume increases at constant pressure?
  2. a.decreases
  3. b.increases
  4. c. Remains constant
  5. d. Slightly decreases
• 2. Which of the items below is an application of Charles's law.

  a. Incubator

  b. Syringe

  c. Medical respirator

  d. Automobile engine
• What property of gas molecule varies directly according to the kinetic molecular theory?

  a. Temperature

  b. Pressure

  c. Volume

  d. Volume and pressure
• 4. According to Boyle's law, as the volume of a gas is made smaller, the pressure of the gas

  • stays the same.
  • C. gets lower.
  • B gets higher
  • D. becomes negligible
• 5. Which is NOT a measurable property of gases?

  A.odor

  B. pressure

  C. amount of gas

  D. volume
• 6. Which of these changes would NOT cause an increase in the pressure of a contained gas?

  A. The volume of a container is decreasing.

  B. The volume of a container is increasing

  C. The amount of gas is constant.

  D. The temperature of the gas is decreasing.
• 7. In the Kinetic Molecular Theory, if the temperature of a gas increases, what will happen to its average kinetic energy?

  A it will increase

  C. it will be constant

  B. it will decrease

  D. no enough evidence
• 8. According to Charles' Law, what is the relationship between the temperature and volume of a gas at constant pressure?

  A directly proportional

  C. inversely proportional

  B. unchanging relationship

  D. no relationship at all
• 9. Which two variables must be held constant for Boyle's Law to apply?

  1. volume and Pressure amount of gas
  2. C. Volume and
  3. B. Temperature and Pressure
  4. D. Amount of gas and Temperature
• 10. Which two variables must be held constant for Charles' Law to apply

  • Amount of Gas and Volume
  • C. pressure and Amount of Gas
  • B. Temperature and Volume
  • D. Pressure and Volume
• 11. Why do sir bubbles blown underwater expands as they rise to the surface?

  A. because the outside pressure increases.

  B. because the temperature decreases causing the bubbles to expand.

  C. because the volume of the gas decreases as it rises to the surface.

  D. because the pressure decreases as the bubbles rise to the surface.
• Which gas lew explains the mechanism of drawing a fluid into a syringe?

  • A. Boyle's Law
  • C. Avogadro's Law
  • B. Gay-Lussac's Law
  • D. Charles' Law
• 13. Gilbert decides to go scuba diving while on vacation in Hundred Island in Pangasinan. As he swims deeper into the ocean, the pressure pushing on him increases. Based on the relationship in Boyle's law, what would happen to the volume of Gilbert's lungs with this increase in pressure?

  C. volume of the lungs would have no change

  D. volume of the lungs would decrease
• 14.. Which of the following elements is not present in carbohydrates?

  • a. carbon
  • b. hydrogen
  • c. nitrogen
• 15. Which of the following groups are all classified as polysaccharide?

  a. sucrose, glucose and fructose b. maltose, lactose, and fructose

  c. glycogen, sucrose and maltose.

  d. glycogen, cellulose and starch
• 16. The sugar in RNA is is the sugar in DNA

  1. deoxyribose, ribose
  2. c. ribose phosphate
  3. b. ribose, deoxyribose
  4. d. ribose, uracil
• 17. Amino acids are the building blocks of which group of biomolecules?

  a.proteins

  c. lipids

  b. carbohydrates

  d. nucleic acid
• 18. Disaccharides are double sugars. Which one is not a disaccharide?

  • a. maltose
  • b. galactose
  • c. sucrose
  • d. lactose
• 19. Which is not true about lipids? a. They are hydrophilic.

  b. They are hydrophobic

  c. They can be dissolved away by solvents that are non-polar like ether and benzene.

  d. Glycerol and fatty acids are its building blocks.
• • Nature of Reactants
  • Temperature
  • Presence of Catalyst
  • Presence of Catalyst
  • Size of Reactants
• Physical Change 41. Scrubbing the floor
• Physical Change 42 Wiping the table
• Chemical Change 43 Frying dried fish
• Chemical Change Bleaching cloth
• Physical Change is Scraping food from the
• Physical Change the Sweeping the backyard
• Physical Change 47 Making salad
• Chemical Change 48 Baking a cake
• Physical Change 49 Making syrup
• Physical Change 50 Removing cobwebs