| Title | Introduction | Suggested Duration | File |
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Activity 1. Projectile motion - the effect of launch angle on range |
A projectile is any object that moves, without propulsion, in free flight. If air resistance is ignored, the only force acting on a projectile during its flight is that due to gravity. This force is constant and is always directed vertically downwards. It causes the projectile to follow a parabolic path.
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45 minutes |
Physics_QLD12_19_1.spklab |
| Activity 2. Investigating the force on a conductor in a magnetic field |
A current-carrying wire will experience a force when placed perpendicular to a magnetic field. The force, F, experienced by the wire is given by F = BIL, where I is the current in the wire (A), L is the length of the wire (m) and B is the strength of the magnetic field (T).
By varying the current through a wire placed in a magnetic field of known constant strength and measuring the force experienced by the wire using a balance, a relationship between current and force can be found.
|
30 minutes
|
Physics_QLD12_19_2.spklab |
| Activity 3. Investigating the strength of a magnet at various distances |
The strength of the magnetic field around a current- carrying wire varies with the distance from the wire according to:
where B is the magnetic field strength, μ0 is the magnetic constant, I is the current flowing through the wire and r is the distance from the wire. .
|
40 minutes |
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| Activity 4. Investigating the photoelectric effect |
The ‘photoelectric effect’ refers to the emission of electrons from the surface of a metal when light of low wavelength is incident on the surface. This phenomenon cannot be sufficiently explained using the wave theory of light, and its explanation led to the development of the photon or particle-like dual-nature model of light we have today.
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50 minutes |
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