The Praxis General Science: Content Knowledge (5435) exam is a test required by many states for credential candidates planning to teach science at a high school level. It is a single, computer-delivered test that includes questions from five content domains.

The content categories are Scientific Methodology, Techniques, and History; Physical Science; Life Science; Earth and Space Science; and Science, Technology, and Society.

Praxis II General Science Content Knowledge (5435) Exam Practice

Time left 00:00

25 Questions

1. Who proposed the quantum theory of light?

James MaxwellIsaac NewtonChristian HuygensAlbert Einstein

2. Metamorphic rock is produced when which of the following undergoes profound changes as a result of exposure to intense pressure and heat?

A batholithA subduction zoneA volcanoA protolith

3. Consider the two vectors below:
Which vector best represents the vector obtained by subtracting A from B (
)?

DACB

4. A force of 25.0 N pulls three blocks connected by a string on a frictionless surface. What is the tension in the rope between the 4.0-kg block and the 2.0-kg block?

25 N16.7 N11.1 N0 N

5. The process that causes lithospheric plates to move over the surface of the mantle is called:

Subduction.Conduction.Tension.Convection.

6. A lead sphere 10 centimeters in diameter is attached to a 10-meter wire and suspended from a beam in a large warehouse. A lead sphere 1 meter in diameter is hung next to the smaller sphere, almost touching. Ignoring friction, which statement is true?

small sphere will move slightly towards the big sphere, but the big sphere will not move.Neither sphere will move.Both spheres will move slightly towards each other.The big sphere will move slightly toward the small sphere, but the small sphere will

7. The lithification process results in the formation of which of the following types of rocks?

Intrusive igneousSedimentaryMetamorphicExtrusive

8. Which of the following statements is true of rocks such as olivine that are found at the top of Bowen's reaction series?

They are classified as metamorphic.None of theseThey weather more quickly than rocks found lower in the series.They crystallize at lower temperatures than rocks found at the bottom of the series.

9. Which of the following is NOT true about land reclamation?

Land reclamation may destroy habitats and increase biodiversity.Land reclamation may result in soil liquefaction during earthquakes.Land reclamation creates new lands from ocean beds, riverbeds or lakebeds.Land for agricultural use may be reclaimed by draining submerged wetlands.

10. In 1912, Alfred Wegener proposed that:

Mountains are formed by tectonic plates pushing against one another.The continents once formed a single land mass, but have since drifted apart.Earth's magnetic poles have reversed several times throughout history.Tectonic plates move because of convection currents in the mantle.

11. When two tectonic plates are moving laterally in opposing directions, this is called a:

Lateral boundary.OppositionalTransformational boundary.Compressional

12. An athlete's foot is in contact with a kicked football for 100 milliseconds and exerts a force on the football over a distance of 20 centimeters. The force starts at 0 N and increases linearly to 2000 N for 50 milliseconds through a distance of 10 centimeters and then decreases linearly for 50 milliseconds through a distance of 10 centimeters. What is the average power of the athlete's foot while it is in contact with the ball?

4000 kilowatts2 kilowatts2000 kilowatts4 kilowatts

13. Which of the following types of igneous rock solidifies deepest beneath the Earth's surface?

VolcanicDetritalPlutonicHypabyssal

14. Proteins are made up of which of the following repeating subunits?

SugarsNucleic acidsTriglyceridesAmino acids

15. Which of the following could be an end product of transcription?

snRNPDNArRNAProtein

16. Which of the following is NOT supported by Dalton's Atomic Theory of Matter?

Atoms of a particular element all have the same properties such as size and mass.Every element consists of tiny particles called atoms which can be split into even smaller pieces.Chemical processes result from the rearrangement, combination and separation of atoms.Differences in properties of elements are due to differences in the atoms of the elements.

17. Which of the following events immediately precedes a volcanic eruption?

An oceanic plate is subducted by a continental plate.Magma fills vertical and horizontal fractures in the Earth's crust, creating sills and dykes.batholith forms beneath the Earth's surface.A dyke reaches the Earth's surface and a plume passes through it.

18. An automobile increased its speed uniformly from 20 m/s to 30 m/s at rate 5 m/s². During this time it traveled 50 meters. How long did it take the automobile to make this change?

102Can't be determined.5 seconds

19. Which of the following plant hormones is most likely to delay aging when sprayed on cut flowers and fruit?

EthyleneAbscisic acidCytokininsGibberellins

20. Which of the following wastes may be suitable for sink or sewer disposal?

AcetoneMercuryBenzeneAcetic Acid

21. Transverse travelling waves propagate through a taut string of length 20 meters at a speed of 4 m/s. Standing waves are set up in this string which is fixed at both ends. What is the smallest frequency possible for the standing waves?

0.05 Hz0.2 Hz0.4 Hz0.1 Hz

22. The majority of the solar energy that reaches Earth is absorbed by:

Glaciers.Landmasses.The Earth's atmosphere.Oceans.

23. The density of a material refers to:

Mass per moleMoles per volumeMolecular weight per volumeMass per volume

24. What is the speed of a wave with a frequency of 12 Hz and a wavelength of 3 meters?

12 meters per second360.25 meters per second4

25. Consider the following statements about Newton's law: I.  A newton is a fundamental unit. II.  Mass and acceleration are inversely related when the force is constant. III.  Newton's first law can be derived from Newton's second law. IV.  Newton's second law can be derived from the universal law of gravity. Which of the following statements are true?

II and III only.I, II, and III.I, II, III, and IV are not true.III only.