Digital ACT Practice Questions

According to Snell's Law (n1 * sin(theta_1) = n2 * sin(theta_2)), the index of refraction n2 is greatest in: Experiment Context (Refraction of Monochromatic Lig...

As light passes from air into any of these three dense materials, what happens to its frequency and wavelength? Experiment Context (Refraction of Monochromatic ...

Based on Table 7, adding resistors in parallel causes the total circuit current to: Experiment Context (Series and Parallel Resistor Circuits): An electronics l...

What is the total power dissipated by Circuit 5 (three 6.0 ohm resistors in parallel)? Experiment Context (Series and Parallel Resistor Circuits): An electronic...

If one resistor burns out and becomes an open circuit in Circuit 2 (series) versus Circuit 4 (parallel): Experiment Context (Series and Parallel Resistor Circui...

Based on Table 8, during which time interval was the bacterial population dividing at its maximum exponential rate? Experiment Context (Bacterial Population Gro...

The plateau in population density between Hour 6 and Hour 8 is most likely caused by: Experiment Context (Bacterial Population Growth Phases): Microbiologists i...

If a bactericidal antibiotic that inhibits cell wall synthesis is added at Hour 0, the optical density at Hour 4 would most likely be: Experiment Context (Bacte...

Based on Table 9, as atomic number (Z) increases across Period 3 from left to right, atomic radius: Experiment Context (Period 3 Elemental Properties): Physical...

The primary factor driving the decrease in atomic radius across Period 3 is the: Experiment Context (Period 3 Elemental Properties): Physical chemists analyzed ...

Which element in Table 9 has the greatest tendency to attract shared bonding electrons toward itself? Experiment Context (Period 3 Elemental Properties): Physic...

Based on Table 10, materials with higher thermal conductivity (k) require: Experiment Context (Heat Transfer Along Metallic Rods): Identical 30 cm metal rods (c...

Why was the midpoint temperature exactly 50.0°C for all rods once steady state was reached? Experiment Context (Heat Transfer Along Metallic Rods): Identical 30...

Which of the tested materials would be the most effective thermal insulator for building construction? Experiment Context (Heat Transfer Along Metallic Rods): I...

Based on Table 11, when the sound source moves toward the stationary microphone, the detected frequency: Experiment Context (Acoustic Doppler Shift Measurements...

The perceived pitch shift of an approaching sound source occurs because: Experiment Context (Acoustic Doppler Shift Measurements): A sound source emitting a ste...

If an ambulance siren approaches a stationary pedestrian and then passes, the pedestrian will hear: Experiment Context (Acoustic Doppler Shift Measurements): A ...

Based on Table 12, the relationship between absolute temperature (in Kelvin) and gas pressure in a rigid container is: Experiment Context (Thermal Pressure of N...

If the container is heated to 500 K, what is the predicted pressure of the nitrogen gas? Experiment Context (Thermal Pressure of Nitrogen Gas): A sealed, rigid ...

On a microscopic molecular level, gas pressure increases with temperature because gas molecules: Experiment Context (Thermal Pressure of Nitrogen Gas): A sealed...

Based on Table 13, for all trials, the force required to initiate motion (peak static force) is: Experiment Context (Static and Kinetic Friction of Wooden Block...

The coefficient of static friction (mu_s = F_static / F_normal) for this wood-on-steel interface is: Experiment Context (Static and Kinetic Friction of Wooden B...

Why is the coefficient of static friction generally higher than the coefficient of kinetic friction? Experiment Context (Static and Kinetic Friction of Wooden B...

Based on Table 14, in which beaker was the external solution isotonic to the bag interior? Experiment Context (Osmotic Mass Change in Dialysis Bags): Dialysis t...