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SciAcad1_Final_Semester1 (12/10/2024)

Last updated about 1 year ago
67 questions
DE_Chem_1.1
1

Which of the following correctly describes heat?

1

When energy is added to a substance at constant volume and pressure, its temperature increases except ________.

1

If one end of an iron bar is heated, what causes thermal energy to transfer to the other end?

1

Which of the following can cause objects to require different amounts of thermal energy to reach the same temperature?

1

When does the flow of thermal energy stop?

DE_Chem_1.2
1

How does an exothermic reaction compare with an endothermic reaction?

1

A hot piece of metal is placed into cooler water. Which statement describes how the second law of thermodynamics relates to this process?

1

Is the flow of energy during vaporizing more like the flow of energy during melting or during freezing?

DE_Chem_1.3
1

What does residence time describe?

1

Thermal energy is transferred throughout Earth by which of the following processes?

1

Which of the following is most responsible for the uneven distribution of solar energy on Earth?

1

What cycle includes ammonia and urea?

1

A scientist studying a swamp notes that it contains a high concentration of organic carbon. She should classify this region as ________.

DE_Chem_1.4
1

What process drives mantle convection?

1

Which statement best explains why Earth's core contains such high percentages of iron and nickel?

1

Which is the correct order of Earth's structural layers, from top to bottom?

DE_Chem_1.5
1

Match the following plate formations to their proper description.

Draggable itemCorresponding Item
fault block mountains
These form when extensional forces on rock at a divergent boundary cause some rocks to move up and some to move down; this group moves upward.
folded mountains
These may be inactive and become a place for water to collect, forming rivers and lakes
rift valleys
These form behind a subduction zone where two plates converge.
volcanic arcs
These form when converging plates compress against each other and form anticlines, pushing rock upward
1

Match the following types of plate boundaries and formations to their description or example.

Draggable itemCorresponding Item
divergent boundary
This occurs when two tectonic plates push together; this action can form mountains and volcanoes.
transform boundary
The movement of tectonic plates that form mid-ocean ridges and rift valleys.
convergent boundary
This occurs when two tectonic plates slide past one another; this boundary occurs in southern California.
subduction zones
These occur at convergent boundaries between ocean-ocean or ocean-continental crust occur, but do not occur where two continental plates meet.
deep-sea trenches
These form the deepest parts of the ocean, with most located around the ring of fire.
1

Pangaea became the continents we see today because of plate motion...

1

Continental drift separates two populations of the same species. Eventually, the two populations evolve into distinct species. In which of the following scenarios would this evolution likely be most pronounced?

1

A geologist is looking for evidence of early supercontinents. Why is the evidence difficult to find?

DE_Chem_1.6
1

Where do volcanoes form?

1

A geologist learns that an explosive volcanic eruption occurred. Which of the following inferences is he most justified in making about the type of lava that erupted?

1

How do volcanoes form at hot spots?

DE_Chem_2.1
1

The atomic number of lead is 82. Its mass number is 207. How many protons, neutrons, and electrons does this atom of lead contain?

1

Which combination best represent the mass and charge of a neutron?

1

An atom of hydrogen-2 contains one proton, one neutron, and one electron. Which particle(s) identify the atom as hydrogen?

1

An ion of oxygen contains eight protons and has a charge of 2-. What must occur for this ion to become a neutral oxygen atom?

1

Which atom has the greatest mass?

DE_Chem_2.2
1

How did the uncertainty principle influence thinking about the arrangement of electrons in atoms?

1

Light can be characterized in terms of its wavelength. Light can also be characterized as having a discrete quantity of energy. What does this say about light?

DE_Chem_2.3
1

With the given orbital diagram, which of the following is true?

1

What word is used to describe electrons in the outermost energy level?

1

Using the orbital diagram below, which of the following elements does it describe?

DE_Chem_2.4
1

The noble gases include which of the following sets of elements?

1

How many groups are there in the periodic table?

1

Which of the following is true about halogens?

1

Which of the following is true about rows of the periodic table?

DE_Chem_2.5
1

Metallic character tends to increase as you move in which direction on the period table?

1

Atomic radius tends to decrease as you move ________.

DE_Phys_1.1
1

For which object(s) do Newton's laws of motion apply best?

1

An object is falling straight down. The minimum number of axes required in a frame of reference used to analyze its motion is

1

A student knows the following facts about an object. Which will help most in being able to use Newton's laws predict its motion?

1

In Newton's law of universal gravitation, what is the mathematical relationship of the force to the distance?

DE_Phys_1.2
1

Which of the following best completes this sentence? In every interaction, forces occur in ___________.

1

If each vehicle below is traveling at 30 miles per hour on a straight road, which one would be the hardest to stop?

1

A bat with a force of 50 N hits a softball with a mass of 0.5 kg. What will the softball's acceleration rate be?

1

The same force acts on four objects with different masses. Which mass would experience the greatest acceleration?

1

Newton's first law states that an object must travel at a constant speed and in ________, unless some outside force compels it to change.

1

An object is accelerating when _______________.

DE_Phys_1.3
1

In this image, what type of quantity is indicated by the colors?

1

Which could be a description of this vector?

1

Add the following force vectors using the head-to-tail method: 3 N east; 2 N north; 2 N west; 4 N north; 2 N west; 3 N south; 1 N east. What is the resultant vector?

1

A satellite orbits Earth at a constant altitude and speed. There are no physical connections, such as cables, between Earth, and the satellite. Why does it follow a circular path?

1

Speed is related to velocity in the same way that distance is related to _______

1

Combine these three velocity vectors into a resultant: 3.0 m/s north, 4.0 m/s east, 1.0 m/s west. Identify the resultant vector.

1

A velocity's magnitude may be changed without changing its direction by ________.

DE_Phys_1.4
1

What is the average acceleration of a car that is initially at rest at a stoplight and then accelerates to 24 m/s in 9.4 s?

1

A boy pushes on a heavy box, but it does not move. What force is resisting the boy's push?

1

Neglecting air resistance, the horizontal velocity of a projectile ________.

1

A car suddenly slams on its brakes and skids west for 8 m before stopping. The force of friction acting on the car was directed ...

1

The velocity--time graph shown below indicates which of the following about the object's motion?

DE_Phys_1.5
1

Two objects in a closed system collide. After the collision, one object has lost speed, but the other object has gained speed. Explain why this has happened.

1

Calculate the speed of a 2.4 kg object with a momentum of magnitude 76 kg m/s.

1

When two objects collide in a perfectly elastic collision, what is true about the total momentum and total kinetic energy before and after?

1

The kinetic energy of an object is equal to what expression?

1

What symbol is used to denote momentum?