Digital ACT Practice Questions

Hoffman apparatus electrolysis of acidified water (2 H2O -> 2 H2 + O2) produced gases at cathode and anode: - Cathode: Gas A volume = 40.0 mL - Anode: Gas B vol...

Meteorological data across a fast-moving cold front: - Ahead of front (Warm sector): Temp = 24°C, Pressure = 100.8 kPa, Winds from SW - Behind front (Cold secto...

An object was placed at various distances d_o in front of a concave mirror (focal length f = 20 cm): - d_o = 60 cm: Image distance d_i = 30 cm, Real, Inverted -...

Biochemists measured DNA melting temperature (Tm) for synthetic oligonucleotides: - Oligo 1 (20% GC, 80% AT): Tm = 68.2°C - Oligo 2 (40% GC, 60% AT): Tm = 76.5°...

A uniform lever balanced horizontally on a central fulcrum: - Left side: Mass m1 = 4.0 kg at distance d1 = 1.5 m (Torque = 4.0 * 1.5 = 6.0 kg*m) - Right side: M...

Precipitation of lead(II) iodide: Pb(NO3)2 + 2 KI -> PbI2(s) + 2 KNO3. - Flask 1: 0.10 mol Pb(NO3)2 + 0.10 mol KI -> 0.05 mol PbI2 formed - Flask 2: 0.10 mol Pb...

Global climate simulations modeled atmospheric cyclone rotation: - Northern Hemisphere low-pressure systems rotate COUNTERCLOCKWISE. - Southern Hemisphere low-p...

A monochromatic green laser (532 nm) illuminated two slits separated by distance d: - Slit separation d = 0.25 mm: Fringe spacing delta y = 4.2 mm - Slit separa...

The primary conflict in the passage centers on Elias's: Passage Excerpt (Literary Narrative): Master horologist Elias Vance worked not by the chime of the cathe...

As it is used in the passage, the phrase 'idiosyncratic heartbeat' most nearly emphasizes that mechanical watches: Passage Excerpt (Literary Narrative): Master ...

It can reasonably be inferred from the passage that Elias values mechanical watches primarily because they: Passage Excerpt (Literary Narrative): Master horolog...

The author's tone when describing the quartz clock ('unfeeling, quartz-locked precision') can best be described as: Passage Excerpt (Literary Narrative): Master...

According to the passage, what was a primary economic advantage of maritime trade over overland caravan routes? Passage Excerpt (Social Science): While 19th-cen...

The author's attitude toward 19th-century historians who focused primarily on overland routes can best be described as: Passage Excerpt (Social Science): While ...

As it is used in the passage, the word 'colossal' most nearly means: Passage Excerpt (Social Science): While 19th-century historians romanticized the overland c...

Which of the following hazards of maritime trade is explicitly mentioned in the passage? Passage Excerpt (Social Science): While 19th-century historians romanti...

The primary purpose of the passage is to: Passage Excerpt (Humanities): Founded by Walter Gropius in Weimar in 1919, the Bauhaus school sought to demolish the a...

Based on the passage, early critics and Walter Gropius disagreed fundamentally about whether Bauhaus buildings: Passage Excerpt (Humanities): Founded by Walter ...

The phrase 'form follows function' in the passage implies that an object's visual appearance should: Passage Excerpt (Humanities): Founded by Walter Gropius in ...

According to the passage, which materials became hallmarks of Bauhaus design? Passage Excerpt (Humanities): Founded by Walter Gropius in Weimar in 1919, the Bau...

The discovery of hydrothermal vent ecosystems was scientifically revolutionary because it: Passage Excerpt (Natural Science): Prior to the 1977 discovery of hyd...

According to the passage, how do adult giant tube worms (Riftia pachyptila) obtain nourishment? Passage Excerpt (Natural Science): Prior to the 1977 discovery o...

As it is used in the passage, the word 'spewing' most nearly conveys: Passage Excerpt (Natural Science): Prior to the 1977 discovery of hydrothermal vents along...

It can reasonably be inferred from the passage that hydrothermal vent communities would be most severely threatened by: Passage Excerpt (Natural Science): Prior...