Lesson 1.8 • Competencies 1.1 – 1.5Interactive Simulation

Unit 1 Comprehensive Assessment

Summative 20-question randomized evaluation testing all 5 syllabus competencies with instant grading, physical explanations, and targeted lesson recap links.

Marking a lesson complete represents finishing your study of the topic; it does not denote tested mastery.

Learning Objectives

Synthesize concepts across all 5 measurement competencies under exam-style conditions.
Assess individual mastery across each competency to identify areas requiring revision.

Syllabus Topic Outline

Competencies 1.1 – 1.5

1Competency 1.1: Nature of science & investigation
2Competency 1.2: Physical quantities & SI units
3Competency 1.3: Dimensional analysis & equations
4Competency 1.4: Measuring instruments & errors
5Competency 1.5: Vectors and scalars

Unit 1 Comprehensive Assessment

20-question summative evaluation covering all 5 syllabus competencies (1.1 to 1.5).

Answered: 0 / 20

Competency 1.1 • foundation

Which of the following statements represents a scientific observation rather than an inference?

Competency 1.1 • foundation

In an experiment investigating the relationship between the period of a simple pendulum and its length, which variable is the independent variable?

Competency 1.1 • intermediate

Which criterion is essential for a scientific hypothesis to be considered valid in physics?

Competency 1.2 • foundation

Which of the following groups contains ONLY fundamental (base) SI units?

Competency 1.2 • intermediate

What is the equivalent expression for 1 Joule (J) expressed solely in terms of SI base units?

Competency 1.2 • intermediate

Convert a density of 2.7 g cm⁻³ into the standard SI unit (kg m⁻³):

Competency 1.2 • foundation

How many picometres (pm) are in 1 nanometre (nm)?

Competency 1.3 • foundation

What are the dimensions of pressure (P = Force / Area)?

Competency 1.3 • intermediate

What are the dimensions of the Universal Gravitational Constant G in Newton’s law F = G m₁ m₂ / r²?

Competency 1.3 • intermediate

In the equation v² = u² + 2as, what does dimensional homogeneity require?

Competency 1.4 • foundation

The length of a rod is measured as (25.0 ± 0.1) cm. What is the percentage uncertainty in this measurement?

Competency 1.4 • intermediate

Two lengths are measured as x = (10.0 ± 0.2) cm and y = (4.0 ± 0.1) cm. If z = x - y, what is the absolute uncertainty in z?

Competency 1.4 • intermediate

The resistance of a resistor is given by R = V / I. If V has a percentage uncertainty of 3% and I has a percentage uncertainty of 2%, what is the maximum percentage uncertainty in R?

Competency 1.4 • advanced

The radius r of a sphere is measured with a percentage uncertainty of 1.5%. What is the resulting percentage uncertainty in the calculated volume V = (4/3) π r³?

Competency 1.4 • foundation

How many significant figures are in the measurement 0.04050 kg?

Competency 1.4 • intermediate

A student measures a current as 2.4 A and a resistance as 12.35 Ω. To how many significant figures should the calculated potential difference V = I × R be reported?

Competency 1.5 • foundation

Which of the following physical quantities is a VECTOR quantity?

Competency 1.5 • intermediate

A force of 50 N acts at an angle of 60° to the horizontal. What are its horizontal (Fx) and vertical (Fy) rectangular components?

Competency 1.5 • intermediate

Two perpendicular forces of 6.0 N and 8.0 N act simultaneously at a point. What is the magnitude of their resultant force in Newtons?

Competency 1.5 • intermediate

Two forces of equal magnitude F act on a particle at an angle of 120° to each other. What is the magnitude of their resultant?