Teacher Certification: Praxis Science Physics

What Is It?

1. Physics is a branch of science that deals with the study of matter, energy, and the fundamental laws that govern the behavior of the physical universe.
2. In the context of Teacher Certification, physics is tested in the Praxis Science exam, which assesses a candidate's knowledge and skills in teaching science to students.

Why Does the Exam Ask This?

The exam asks about physics to measure the candidate's ability to design and implement a curriculum that aligns with state and national standards, as well as their ability to assess student learning and understanding of scientific concepts.

What Do I Need to Know First?

1. Basic concepts of motion, forces, and energy
2. Understanding of scientific inquiry and the scientific method
3. Familiarity with the structure and organization of the physical sciences
4. Knowledge of the Next Generation Science Standards (NGSS)

Topic Snapshot

Physics is a fundamental subject in the Praxis Science exam, and it is essential for teaching science to students. Understanding the concepts of motion, forces, and energy is critical for designing and implementing a curriculum that aligns with state and national standards.

Exam / Job / Audit Weighting

Frequency: 20% Difficulty Rating: Intermediate Question Type or Real-World Task Type: Multiple-choice questions, short-answer questions, and essay questions

Difficulty Level

intermediate

Must-Know Rules, Formulas, Standards, or Principles

1. Newton's Laws of Motion: F = ma, F = -kx
2. Conservation of Energy: E = mc^2
3. The Laws of Thermodynamics: ΔU = Q - W

Misconceptions

1. Believing that physics is only about math and not about real-world applications
2. Thinking that physics is only about big, complex systems and not about simple, everyday phenomena
3. Assuming that physics is only about the physical sciences and not about other sciences like biology and chemistry
4. Believing that physics is only about theory and not about experimentation and observation
5. Thinking that physics is only about the past and not about the present and future

Common Mistakes

1. Failing to apply physics concepts to real-world situations
2. Misinterpreting or misapplying physics formulas and equations
3. Failing to consider the limitations and uncertainties of physics measurements and observations
4. Failing to communicate physics concepts clearly and effectively to students
5. Failing to assess student learning and understanding of physics concepts

The Common Trap

The common trap in physics is to focus too much on the math and not enough on the real-world applications and implications of the concepts.

Terms to Remember

1. Newton's Laws of Motion
2. Conservation of Energy
3. Laws of Thermodynamics
4. Scientific Inquiry
5. Scientific Method

Step-by-Step Process

1. Identify the problem or question
2. Research and gather information
3. Analyze and interpret the data
4. Draw conclusions and make recommendations
5. Communicate the findings and recommendations to the audience

Exam Answer Builder

1-mark Question

What is the primary force that acts on an object in motion? A) Friction B) Gravity C) Normal force D) Tension

What it tests: Basic understanding of forces and motion

Example Question: What is the primary force that acts on an object in motion?

Key Tip: Identify the type of force and its direction.

2-mark or 3-mark Question

A car travels at a speed of 60 km/h for 2 hours. How far does it travel? A) 100 km B) 120 km C) 140 km D) 160 km

What it tests: Application of physics formulas and equations

Example Question: A car travels at a speed of 60 km/h for 2 hours. How far does it travel?

Key Tip: Use the formula distance = speed x time.

5-mark or long-answer Question

Describe the process of scientific inquiry and explain how it is used in physics.
A) Scientific inquiry is a process of observation, experimentation, and analysis.
B) Scientific inquiry is a process of hypothesis, experimentation, and conclusion.
C) Scientific inquiry is a process of measurement, calculation, and prediction.
D) Scientific inquiry is a process of observation, experimentation, and communication.

What it tests: Understanding of scientific inquiry and its application in physics

Example Question: Describe the process of scientific inquiry and explain how it is used in physics.

Key Tip: Use examples and illustrations to support your answer.

Case Study or application-based Question

A student is conducting an experiment to measure the acceleration of a cart on a ramp. What are the variables that should be controlled and measured? A) Mass, velocity, and acceleration B) Force, distance, and time C) Speed, force, and friction D) Mass, force, and distance

What it tests: Application of physics concepts to real-world situations

Example Question: A student is conducting an experiment to measure the acceleration of a cart on a ramp. What are the variables that should be controlled and measured?

Key Tip: Identify the variables that affect the outcome of the experiment.

This vs That

Physics vs Chemistry: While both are physical sciences, physics focuses on the study of matter, energy, and the fundamental laws that govern the behavior of the physical universe, whereas chemistry focuses on the study of the composition, properties, and reactions of matter.

Time-Saver Hack

Use the mnemonic device "F = ma" to remember Newton's First Law of Motion.

Mini Scenarios

Basic Scenario

A student is conducting an experiment to measure the force of friction on a block of wood. What should they do first? A) Measure the mass of the block B) Measure the distance the block travels C) Measure the force of friction D) Measure the time it takes for the block to move

Applied Scenario

A student is designing a roller coaster to demonstrate the concept of potential and kinetic energy. What should they consider? A) The height and length of the roller coaster B) The speed and acceleration of the roller coaster C) The force and friction of the roller coaster D) The mass and velocity of the roller coaster

Tricky Scenario

A student is conducting an experiment to measure the acceleration of a cart on a ramp. What should they watch out for? A) The mass of the cart B) The force of friction C) The distance the cart travels D) The time it takes for the cart to accelerate

Diagnostic MCQ Bank

Question 1

What is the primary force that acts on an object in motion? A) Friction B) Gravity C) Normal force D) Tension

Options

A) Friction B) Gravity C) Normal force D) Tension

Correct Answer

A) Friction

Explanation

The primary force that acts on an object in motion is friction.

Why the correct answer is right

Friction is the force that opposes motion and is a fundamental concept in physics.

Why the trap option is tempting

Gravity and normal force are also forces that act on objects, but they are not the primary force that acts on an object in motion.

Question 2

A car travels at a speed of 60 km/h for 2 hours. How far does it travel? A) 100 km B) 120 km C) 140 km D) 160 km

Options

A) 100 km B) 120 km C) 140 km D) 160 km

Correct Answer

B) 120 km

Explanation

To find the distance traveled, we use the formula distance = speed x time.

Why the correct answer is right

The correct answer is 120 km because the car travels at a speed of 60 km/h for 2 hours.

Why the trap option is tempting

The other options are tempting because they are close to the correct answer, but they are not the correct answer.

Question 3

What is the process of scientific inquiry? A) Observation, experimentation, and analysis B) Hypothesis, experimentation, and conclusion C) Measurement, calculation, and prediction D) Observation, experimentation, and communication

Options

A) Observation, experimentation, and analysis B) Hypothesis, experimentation, and conclusion C) Measurement, calculation, and prediction D) Observation, experimentation, and communication

Correct Answer

A) Observation, experimentation, and analysis

Explanation

The process of scientific inquiry involves observation, experimentation, and analysis.

Why the correct answer is right

The correct answer is A) Observation, experimentation, and analysis because it is the correct process of scientific inquiry.

Why the trap option is tempting

The other options are tempting because they are related to scientific inquiry, but they are not the correct process.

Question 4

A student is conducting an experiment to measure the acceleration of a cart on a ramp. What are the variables that should be controlled and measured? A) Mass, velocity, and acceleration B) Force, distance, and time C) Speed, force, and friction D) Mass, force, and distance

Options

A) Mass, velocity, and acceleration B) Force, distance, and time C) Speed, force, and friction D) Mass, force, and distance

Correct Answer

B) Force, distance, and time

Explanation

To measure the acceleration of a cart on a ramp, we need to control and measure the force, distance, and time.

Why the correct answer is right

The correct answer is B) Force, distance, and time because it is the correct set of variables that should be controlled and measured.

Why the trap option is tempting

The other options are tempting because they are related to the experiment, but they are not the correct set of variables.

Real-World Patterns

Physics shows up in real work in the following ways: 1. Designing roller coasters and other amusement park rides 2. Developing safety features for cars and other vehicles 3. Creating special effects for movies and television shows 4. Understanding the behavior of materials and substances 5. Developing new technologies and innovations

30-Second Cheat Sheet

1. Newton's Laws of Motion: F = ma, F = -kx
2. Conservation of Energy: E = mc^2
3. Laws of Thermodynamics: ΔU = Q - W
4. Scientific Inquiry: Observation, experimentation, and analysis
5. Physics formulas and equations: Distance = speed x time, Force = mass x acceleration

Related Concepts

1. Chemistry: The study of the composition, properties, and reactions of matter
2. Biology: The study of living organisms and their interactions with the environment
3. Mathematics: The study of numbers, quantities, and shapes

Verified Source List

1. National Science Foundation (NSF)
2. American Association for the Advancement of Science (AAAS)
3. American Physical Society (APS)
4. National Academy of Sciences (NAS)
5. OpenStax Physics