Physics Learning Path
High School (9–10) Physics
Explore structured physics courses, solved problems, simulations and Python activities.
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Electromagnetic Induction and Household Circuits
StemPy LabA power station makes electricity by turning a coil in a magnetic field. In this course we find how a moving magnet makes a current in a coil, we study the generator and the alternating current that it gives, and we learn how the wiring of a house is made, and how it is kept safe.
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Magnets and the Magnetic Field of a Current
A compass needle always points north, but near a wire with a current it swings away. In this course we map the field of a magnet with field lines, we find that a current has a magnetic field too, and we use a coil to make an electromagnet that we can switch on and off.
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Force on a Current and the Electric Motor
A fan, a washing machine and a toy car all have a motor. In this course we find that a magnetic field pushes on a wire that carries a current, we find the direction of the push with Fleming's left-hand rule, and we see how this push turns the coil of an electric motor.
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Current, Potential Difference and Ohm's Law
A torch has a battery, a switch and a bulb. Close the switch, and the bulb lights. In this course we find what flows in the wire, what pushes it, and how the current, the push and the resistance are connected by Ohm's law.
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Resistance and Combinations of Resistors
A thin wire resists the current more than a thick one, and a long wire more than a short one. In this course we find what decides the resistance of a wire, and we join resistors in series and in parallel. We also see why the lights of a house are always joined in parallel.
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Heat, Power and Energy at Home
A heater gets hot, but the wire that brings the current to it stays cool. A bulb that is rated 100 W uses more electricity than one that is rated 40 W. In this course we find how much heat a current makes, what the power of an appliance means, and how to work out the energy that a house uses and the bill for it.
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Light in the Atmosphere
Stars twinkle, the sky is blue, and the Sun is red at sunset. The air around the Earth is the reason for all three. In this course we study how the atmosphere bends and scatters light, and we use these ideas to explain the colours of the sky.
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Prisms, Dispersion and the Rainbow
Sunlight looks white, but a glass prism or a drop of rain shows that it holds many colours. In this course we follow a ray through a prism, we find why white light splits into a spectrum, and we see how raindrops make a rainbow.
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The Eye and Seeing
Close your eyes and open them. In a moment, an image forms on a screen at the back of each eye, and your brain turns it into a picture. In this course we study the parts of the eye, how it focuses on near and far objects, and how spectacles correct the eyes of a person who is short sighted or long sighted.
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Lenses and Their Power
A magnifying glass, a camera and the spectacles of a friend all use lenses. Here we learn how convex and concave lenses form images, how to draw and calculate them, and how the power of a lens is measured in dioptres.
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Refraction of Light
A coin at the bottom of a bowl seems to rise when you pour in water. A pencil in a glass looks bent. In this course we find out why light bends when it goes from one material to another. We learn the laws of refraction and the refractive index, and we follow a ray through a glass slab.
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Reflection and Mirrors
Look at a flat mirror, then at the back of a spoon, then at the front. Each shows you a different face. In this course we learn how light is reflected, how a plane mirror forms an image, and how concave and convex mirrors form images that we can draw and also calculate.
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