UPCAT Test - Science

Excluding the sun, what is the brightest star in the sky?

Sirius

When you go to a higher altitude, what happens to the boiling point of water?

It decreases

Which of the following is a colloid?

Fog

Which of the following depletes the ozone layer?

Chlorofluorocarbons

Which of the following is NOT a chemical change?

Compression of carbon

All of the following are solutions except _____.

Milk

The founder of the science of genetics is ______.

Gregor Mendel

How many chromosomes does a sperm cell have?

23

What is the last phase of mitosis?

Telophase

How many moles of CO₂ does 88 grams of Carbon Dioxide contain?

2

Which of the following will NOT increase the speed of a reaction?

Carbonates in water

Which factors are involved in Gay-Lussac’s Law?

Pressure and Temperature

Which is a not a scalar quantity?

Velocity

What do you call the apparent force that pulls a rotating object away from the center of its rotation?

Centrifugal Force

Which electromagnetic wave has the shortest wavelength?

Gamma

When an object is placed in a higher position, what increases?

Potential Energy

Which has the highest Ph value?

Milk of Magnesia

What are the components required for respiration?

Oxygen and Glucose

What the value 6.02 ×10²³ represent?

The number of particles in a mole

Which member of the following members of a food chain gets the least amount of energy?

Cheetah

Which scientist pioneered the planetary model of the atom?

Niels Bohr

Which of the following mediums cannot transmit sound?

A Perfect Vacuum

An object traveling at 100 mph, if not acted upon by an unbalanced force will ________.

Continue moving at 100 mph

Which of the following is the scientific name of the fruit fly?

Drosophila Melanogaster

Which section of the brain is responsible for releasing growth hormones?

Pituary Gland

The tendency of an object to resist changes in motion is dependent on:

Mass

Salt is an example of a/an _________ compound.

Ionic

What enzyme in saliva breaks down sugars?

Amylase

The electron configuration of O is __________.

1s² 2s² 2p⁴ 3s² 3p⁶

Of the first 101 elements, which is the most unstable?

Francium

When electrons of a gas collide more frequently with each other and the container, ______ is increased.

Pressure

The reaction Zn + HCl → ZnCl + H Is classified as a/an ___________ reaction.

Single Replacement

Which element is the most electronegative?

Fluorine

Wood is primarily made up of what organic compound?

Cellulose

Cellulose is what type of compound?

A sugar

Why does semen have alkaline bases as part of its composition?

To protect the sperm from the acidic environment in the vagina.

What is the probability that a father with a homogenous dominant trait and a mother with the same homogenous dominant trait will produce an offspring with the recessive trait?

0%

How does the esophagus bring food down to the stomach in space, where there is zero gravity?

Peristalsis

Mount Mayon is what type of volcano?

Stratovolcano

Why doesn’t oil mix with water?

Oil is non-polar while water is a polar substance.

What is 500 degrees Celsius in Kelvin?

773 K

Formula for Degrees Celcius in Kelvin

K = °C + 273.15

What is the equation that represents the relationship between pressure P, and volume V, if pressure is inversely proportional to volume?

PV = k

A student boils water in different altitudes to see if it has an effect on boiling time. What is the independent variable in his experiment?

Altitude

Which planet has the shortest orbit?

Mercury

Which of the following is a constituent of acid rain?

Sulfuric Acid

Which of the following sources of energy is the cleanest?

Wind

What is the symbol for ozone?

O₃

What blood type can be donated to a person of any blood type?

O

The following are derived quantities except ____.

Electric Current

How many significant figures does the value 1000.0 grams have?

5

When mothballs turn into gas, the process is called __________.

Sublimation

a substance in its gaseous state directly transforms into a solid

Deposition

where a gas turns into a liquid

Condensation

What process can be used on a liquid to separate its components without losing either component in the process?

Distillation

Who discovered radioactivity from Uranium salts?

Henri Becquerel

What is the most common isotope of Carbon?

Carbon-12

Which of the following characterizes water?

Water releases and gains heat slowly.

1 atm is equal to ______ Torr.

760

Which organ produces bile, which helps digests lipids?

Liver

Which among these is not a good conductor of electricity?

Plastic

If the temperature of an ideal gas is increased and the volume is held constant, the pressure will

increase

The units of carrier for codes for related proteins are called

Genes

The diffusion of heat through a liquid or gas by motion of its parts is

Convection