Long Test in Science Grade 10

In the morning, Aaron Jay’s mother prepares his chocolate milk drink; he always adds half a teaspoon of table sugar. identify what type of carbohydrates is table sugar?

• monosaccharide

• disaccharide

• polysaccharide

• glycogen

Gas particles have a very weak intermolecular force of attraction; hence they move as far as possible from each other. They have the tendency to occupy all the spaces they are contained in. if the pressure is increased, the volume will be decreased forcing the gas particles to move closer to one another. Given that the inflated balloon that slipped from the hand of Grace has a volume of 0.50 L at sea level (1.0 atm) and it reached a height of approximately 8 km where the atmospheric pressure is approximately 0.33 atm. Assuming that the temperature is constant. What will be the final volume of the balloon.

• 1.5 L

• 1.10 L

• 2.5 L

• 2.50L

Nutritional chemists have found that burning 1 gram of fat releases twice the amount of heat energy as burning 1 gram of starch. Based on this information, select which type of biomolecule would cause a person to gain more weight?

• carbohydrate

• Fat

• proteins

• nucleic acids

Charles’ law states that at constant pressure, the volume of a fixed amount of a gas is directly proportional to the Kelvin (K) temperature. Given that, an inflated balloon with a volume of 0.75 L at 30 degrees Celsius was placed inside the freezer where the temperature is -10 degree Celsius. Find out what will happen to the volume of the balloon if the pressure remains constant.

• 0.65 L

• 0.75 L

• 1.O L

• 2.0 L

The temperature of nitrogen gas contained in a not rigid vessel is reduced from 100°C to 5.0°C? Identify which of the following describes the resulting behavior of nitrogen gas molecules?

• The average kinetic energy suddenly increases, thus the pressure increases.

• The average kinetic energy suddenly decreases, thus the pressure decreases.

• The volume occupied by the gas molecules suddenly increases, thus the container expands.

• The volume occupied by the gas molecules suddenly decreases, thus the container shrinks.

Carnauba wax is the world's purest, hardest, and most transparent natural wax, collected from the leaves of the carnauba palm. Carnauba wax is used in automotive waxes, shoe polishes, food products. It is also used in makeups such as eyeliners, lipsticks, foundations, and eyeshadows, and in skincare products and deodorants. Carnauba wax belongs to which group of biomolecules?

• Lipids

• proteins

• carbohydrates

• nucleic acids

Last summer vacation, the Garcia family decided to go to Marine Camp Base Ternate, Cavite for a beach party. On their way, all of them were surprised when the tire suddenly exploded. Predict the probable explanation for the blown-out tire.

• High temperature causes a decrease in volume.

• The amount of the gases inside the tire is increased.

• The mass of the gases inside the tire increases causing a blown-up tire.

• The volume of gases increases as the temperature increases, causing a blown-up tire.

Different kinds of materials differ from one another in characteristics and behavior. These characteristics and behavior are called properties of matter. Which of the following properties does NOT describe a gas?

• pressure

• volume

• temperature

• ductility

Distinguish which of the following statements correctly defines Boyle’s Law?

• As the temperature increases, volume decreases at constant pressure.

• As the pressure increases, volume decrease at constant temperature.

• As the temperature increases, volume increases at constant pressure.

• As the pressure increases, volume increases at constant temperature.

Choose which of the following groups are all classified as disaccharide?

• sucrose, maltose and lactose

• glycogen, sucrose and maltose

• maltose, lactose and fructose

• glycogen, cellulose and starch