IB Physics Grade 3 IA examples

Starting from the May 2025 session, the Physics IA requirements have changed. We created a couple of exemplars to show you how the new IA should look like. It's OK to refer to the old Physics IA exemplars (since the new IA is quite similar) for inspiration/ideas, but make sure to follow the new requirements.

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IB Physics Grade 3 IA examples

Not sure what to search for? You can always look through our example Internal Assessments below for inspiration.

All Physics Grade 3 IA Examples

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Filter exemplars

Category

IA

EE

TOK

Notes

Subject

Grade

Level

Session

How does a steel spring’s temperature (20.0, 40.0, 60.0, 80.0, 100.0°C) affect its spring constant as measured by the length of the spring’s extension from the position of equilibrium under applied uniform load?

What is the effect of increasing mass (2.0, 4.0, 6.0, 8.0 g) on the drag coefficient at terminal velocity as measured by the tracking of the position of the ball during free fall?

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How does the height to which water is filled in a bottle (5.50, 7.20, 8.90, 10.60. 12.30, 14.00, 15.70 cm) affect the volume of water lost (in cm^3 ) and hence the volumetric flow rate (in cm^3 s^-1 )?

How does the length of a beam (0.100 m, 0.125 m, 0.150 m, 0.175 m, 0.200 m, 0.225 m, 0.250 m) affect the sag (δ) produced as measured by adding a known mass?

How does varying the temperature of a copper wire (25.0, 100.0, 125.0, 150.0, 175.0, 200.0 °C) impact its resistance (Ω) measured by a multimeter (200 Ω) and an infrared thermometer?

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What is the effect of increasing graphite content (50%, 55%, 60%, 63%, 71%, 74%, and 79%) on the electrical conductivity of the core of a pencil as measured by the resistance across the pencil’s ends?

How does the mass of a marble (0.0050, 0.0100, 0.0150, 0.0200, 0.0250 kg) affect its vertical terminal velocity in a water container when dropped from a constant height measured using video analysis software?

What is the effect of increasing tension (25 N, 29 N, 33 N, 37 N, 41 N, 45 N, and 49 N) on the fundamental frequency of an electric guitar string as measured by analyzing the produced sound via a digital tuner?

How does the temperature of glycerol affect its viscosity as measured by the time it takes for a ball to fall a fixed distance through the fluid?

How does the angle of an inclined plane affect the final angular velocity of a ball that rolls down onto the floor?

The effect of increasing surface area of the blob on damping of pendulums

How does the diameter of a parachute vent affect its terminal velocity when falling through air?

How does the length of the string (0.15, 0.25, 0.35, 0.45, and 0.55 m) affect the period of a bifilar pendulum?

How does the temperature of a steel spring affect its spring constant, 𝑘?

How does the tension of a bass guitar string affect the frequency squared of the note it emits?

How does varying densities of water affect the resonant frequency of a a wine glass that is set into vibration through stick-slip-motion?

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How do different temperatures of a viscous fluid (20°C, 25°C, 30°C, 35°C, 40°C, 45°C, 50°C (Celsius, °C, ±0.5°C)) affect the terminal velocity (ms-1) of a ball with fixed radius (11.94 mm (±0.01 mm)) dropped through it when determined using video analysis?

Examining the Index of Refraction of Water at Different Temperatures

To what extent does the salinity of water affect its specific heat capacity?

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How does a temperature change affect the resistance of copper coils connected in series, measured by calculating their resistance when submerged in various water temperatures?

What is the drag coefficient of a round parachute?

How can the coefficient of viscosity of dish soap be determined from the relationship between the radius and terminal velocity of a falling glass marble?

How does changing the temperature of a circuit affect its power output?

What is the relationship between the inner radius of a hollow cylinder and the time taken for it to roll down an inclined plane?

To what extent does the diameter of a guitar string affect its fundamental frequency?

Determining Planck’s constant through investigating the relationship between the wavelength of light emitted by different light emitting diodes and their threshold voltages.

How does the concentration of salt in water affect the specific heat capacity?

How does temperature (25.0°C, 35.0°C, 45.0°C, 55.0°C, and 65.0°C) affect the viscosity of honey, in units of poise?

How does the height of an inclined plane affect the moment of inertia of a sealed oil drum?

What effect does the surface area of a paper plane’s wings have on its horizontal displacement (in cm) when launched from a height of 86.4 ± 0.05 cm?

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Would an increase in the mass of a sphere shaped plastic affect its terminal velocity when dropped in a dishwashing detergent (viscous medium) ?

What is the effect of mass on the damping of a simple pendulum?

To what extent the change in the distance of two identical masses from the center of a bifilar pendulum affects its period of oscillation

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How does the surface area of a liquid affect its rate of evaporation?

The effect of salt concentration on specific heat capacity of a solution

How does the surface area of parachute affect time taken for descent?

How does increasing the separation distance (from 0.00±0.05cm to 15.00±0.05cm in 1.00±0.05cm increments) between a primary and a secondary coil affect the mutual inductance of these two coils?

Investigating the Dependence of Temperature at Equilibrium on the Air Gap Width Between Two Glass Panes

In a miniature hydroelectric generator, what is the relationship between the head (difference of height between water source and turbine) of the water source and the spin rate (rotations per second) of the turbine?

An exploration on the effect of the launch angle of a projectile on the horizontal distance travelled by a projectile

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Want to get full marks for your IA? Allow us to review it for you

Fast track your coursework with mark schemes moderated by IB examiners. Upgrade now

Want to get full marks for your IA? Allow us to review it for you

Fast track your coursework with mark schemes moderated by IB examiners. Upgrade now