Show:
Biology
Chemistry
Environmental Science
Physics
AP Physics
100

Salivary Amylase is an Enzyme in humans that breaks down starches. What substance would humans have difficulty digesting without this enzyme?

  1. Lipids

  2. Nucleic Acids

  3. Proteins

  4. Carbohydrates

Carbohydrates

100

According to the Law of Conservation of Mass, the number of atoms in the products of a chemical reaction is…

  1. The same as the number of atoms in the reactants

  2. Greater than the number of atoms in the reactants

  3. Less than the number of atoms in the reactants

  4. The same as the number of molecules in the reactants

The same as the number of atoms in the reactants

100

Which of the following lists the atmospheric layers in order (From closest to Earth → farthest)?

  1. Troposphere, Stratosphere, Mesosphere, Thermosphere, Exosphere

  2. Stratosphere, Troposphere, Thermosphere, Mesosphere, Exosphere

  3. Stratosphere, Mesosphere, Troposphere, Thermosphere, Exosphere

  4. Thermosphere, Troposphere, Mesosphere, Stratosphere, Exosphere

Troposphere, Stratosphere, Mesosphere, Thermosphere, Exosphere

100

 Which of the following is Newton’s 2nd Law of Motion?

  1. The force acting on an object is equal to the mass multiplied by its acceleration

  2. A body at rest remains at rest and a body in motion remains in motion unless acted upon by an external force

  3. Every action has an equal and opposite reaction

  4. The acceleration of smaller objects is greater than that of larger objects

The force acting on an object is equal to the mass multiplied by its acceleration

100

While traveling in an elliptical orbit around the sun, Mars gains speed during the part of its orbit where Mars is getting closer to the Sun. Which of the following can be used to explain this gain in speed?

  1. As Mars gets closer to the sun, The Mars-Sun system loses potential energy and Mars gains kinetic energy

  2. A component of the gravitational force exerted on Mars is perpendicular to the direction of motion, causing acceleration and a gain in speed along that direction

  3. The torque exerted on Mars by the Sun during this segment of the orbit increases the Mars-Sun system’s angular momentum

  4. The centripetal force exerted on Mars is greater than the gravitational force during this segment of the orbit, causing Mars to gain speed as it gets closer to the Sun

As Mars gets closer to the sun, The Mars-Sun system loses potential energy and Mars gains kinetic energy

200

What does tRNA deliver to Ribosomes during Translation?

  1. Amino Acids

  2. DNA

  3. mRNA

  4. Proteins

Deoxyribonucleic Acid

200

Which phase of matter has the greatest particle motion?

  1. Gas

  2. Liquid

  3. Plasma

  4. Solid

Gas

200

Volcanoes are formed at which plate boundary?

  1. Divergent

  2. Transform

  3. Convergent

  4. Bypass

Convergent

200

 What is the frequency of a wave that travels 20 meters per second with a wavelength of 200 meters?

  1. 4000 Hz

  2. .10 Hz

  3. 4.0 Hz

  4. 10 Hz

.10 Hz

200

Work done by Earth’s gravitational force on a system is 0 Joules. Which of the following statements must be true? (CHOOSE 2)

  1. The system could have returned to its initial height after some time

  2. The system may not have accelerated due to Earth’s gravitational force

  3. The system could be travelling parallel to Earth’s surface

  4. The system could have experienced equal and opposite work on it due to some other source

1. The system could have returned to its initial height after some time

3. The system could be travelling parallel to Earth’s surface

300

Which of the following processes results in the most genetic variation?

  1. Sexual Reproduction

  2. Asexual Reproduction

  3. Mitosis

  4. Cloning

Sexual Reproduction

300

What is the process of splitting an atom?

  1. Decomposition

  2. Fission

  3. Fusion

  4. Single-Replacement

Fission

300

This type of front pushes cold air down

  1. Cold

  2. Warm

  3. Stationary

  4. Occluded

Warm

300

 On the electromagnetic spectrum, Visible Light is between which 2 types of light?

  1. Gamma and X-Ray

  2. X-Ray and Ultraviolet

  3. Ultraviolet and Infrared

  4. Infrared and Microwave

Ultraviolet and Infrared

300

The maximum mass that can be hung vertically from a string without breaking is 10 kg. A length of this string that is 2 meters long is used to rotate a .5 kg object in a circle on a frictionless table with the string horizontal. The maximum speed that the mass can attain under these conditions without the string breaking is most nearly…

  1. 5 m/s

  2. 10 m/s

  3. 14 m/s

  4. 20 m/s

20 m/s

400

A new mutation that arose in 1 copy of Gene X in a Somatic Cell resulted in the formation of a tumor. Which piece of evidence best describes how the mutation caused the tumor?

  1. Protein X normally stimulates Cell Division. The mutation created an overactive version of Protein X

  2. Protein X normally activates a growth hormone receptor. The mutation decreased Protein X’s stability

  3. Protein X normally prevents passage through the cell cycle. The mutation created an overactive version of Protein X

  4. Protein X normally regulates gene expression. The mutation created an underactive version of Protein X that blocked the cell cycle

Protein X normally stimulates Cell Division. The mutation created an overactive version of Protein X

400

Which of the following gases has the weakest attractive forces between particles?

  1. CO2

  2. He

  3. NO

  4. HCI

He

400

 In which stage of the Nitrogen cycle do soil bacteria convert Ammonium Ions into Nitrate Ions, a form of Nitrogen usable by plants?

  1. Nitrogen Fixation

  2. Nitrification

  3. Assimilation

  4. Ammonification

  5. Denitrifcation

Nitrification

400

Which of the following is the 1st Law of Thermodynamics?

  1. Energy can’t be created or destroyed. It only changes forms

  2. Entropy of an isolated system always increases

  3. Entropy of a system approaches a constant as temperature approaches Absolute Zero

  4. 2 systems in Equilibrium with a 3rd system are in thermal equilibrium with each other

Energy can’t be created or destroyed. It only changes forms

400

An object moving on a horizontal, frictionless surface makes a glancing collision with another object initially at rest on the surface. In this case, which of the following is true about momentum and kinetic energy?

  1. Momentum is always conserved and Kinetic energy may be conserved

  2. Kinetic energy is always conserved and Momentum may be conserved

  3. Momentum is always conserved and Kinetic energy is never conserved

  4. Both Momentum and Kinetic energy are always conserved

Momentum is always conserved and Kinetic energy may be conserved

500

Organisms that reproduce sexually exhibit zygotic, gametic, or sporic meiosis. One way to determine the type of life cycle an organism has is by…

  1. Observing Embryonic Development

  2. Comparing the Diploid and Haploid forms of the organism

  3. Determining when Fertilization occurs in the life cycle

  4. Determining if Gametes are multicellular or unicellular

Comparing the Diploid and Haploid forms of the organism

500

NH3 (l) is brought to its boiling point. Which of the following will occur?

  1. The N-H bonds within the molecule breaks apart

  2. The overall temperature of the solution rises as the molecules speed up

  3. The amount of energy within the system remains constant

  4. The Hydrogen bonds break apart

The Hydrogen bonds break apart

500

This Endocrine Disruptor is commonly used in water bottles and food packaging.

  1. Bisphenol A

  2. Alkylphenols

  3. Halogenated Aromatic Hydrocarbons

  4. Brominated Flame Retardants

Bisphenol A

500

 Which of the following is the SI unit for Electric Current?

  1. Joule

  2. Hertz

  3. Amp

  4. Candela

Amp

500

A proton moving along the positive x-axis enters an electric field that is directed along the positive y-axis. What is the direction of the electric force acting on the proton after it enters the electric field?

  1. Along the negative z-axis

  2. Along the positive z-axis

  3. Along the negative y-axis

  4. Along the positive y-axis

Along the positive y-axis