gamsat physics videos

 

 

Acer expects that GAMSAT candidates have a solid understanding of high school physics. That may sound simple but it is actually a huge amount of content. It is amazing what is covered in a high school physics course. Physics may only make up approximately 20% of GAMSAT questions but do not ignore ignore it - they could be the marks you need to get your score over the line. The videos provided here are courtesy of Sal Khan of Khan Academy.

Please note that while these videos cover a large portion of the GAMSAT assumed knowledge, they are not an exhaustive study guide. You should also consult a textbook to consolidate your learning.

 

 

Motion

Projectile Motion

Centripital Acceleration

Newton's 1st Law

Newton's 2nd Law

Newton's 3rd Law

Force with Vectors

Tension

Inclined Planes

Work and Energy

Momentum

Gravitation

Torque

Springs

Simple Harmonic Motion

Fluids I

Fluids II

Thermodynamics

Magnetism I

Magnetism II

Magnetism III

Charge

Electrostatics

Voltage

Capacitance

Circuits I

Circuits II

Waves

Doppler Effect

Reflection

Refraction

Lenses

Mirrors

Focal Point and Images

Radioactive Decay

Half-life

 

Motion

Here we start with the fundamentals of physics: motion. Motion questions in GAMSAT will almost always include a graph so make sure you are very comfortable with graphical representations of motion.

 

 

Projectile Motion

Here Sal introduces us to projectile motion. You do not need to memorize the equations as they will be provided in GAMSAT.

 

 

Centripetal Acceleration

This is all about objects moving in a circular path.

 

 

Newton's 1st Law

You should already be aware of these. Just in case here is a review of Newton's first law.

 

 

Newton's 2nd Law

You should already be aware of these. Just in case here is a review of Newton's second law.

 

Newton's 3rd Law

You should already be aware of these. Just in case here is a review of Newton's third law.

 

Forces with Vectors

Forces are vector quantities - they have a magnitude and a direction.

 

Tension

Tension is the force in a wire or string. There have been tension problems in past GAMSATs so make sure you understand what it is.

 

Inclined Planes

There's a decent chance that GAMSAT will throw an inclined plane question at you. With this in mind you should understand inclined planes, the normal force, and friction.

TIP: if its vertical use sin, if its horizontal use cos

 

Work and Energy

You need to have an intuitive understanding of these key concepts as they will pop up all over GAMSAT- and not just in physics questions.

 

 

Momentum

Make sure that you understand Momentum, and please, don't forget that momentum is conserved!

 

 

Gravitation

MOst formulas will be provided for you in GAMSAT but this one isn't that hard to learn. Don't memorize it - understand it. If you get a question on gravitation in GAMSAT it will either invlolve algebraically manipulation and/or equation Newton's Law of Gravitation Motion with that of Centripetal force or motion.

 

 

Torque

There is only a slim chance that a torque based physics question will appear in GAMSAT which is probably a good thing. Just to be on the safe side though we should learn it anyway.

 

Springs

Springs are just another scenario of force and stored energy. The forces present in a spring is defined by Hooke's law.

 

Simple Harmonic Motion

Simple Harmonic Motion lies at the border of force and waves (which will be covered later). SHM is quite asiomple concept but in GAMSAT it may be disguised in order to misdirect candidates.

 

Fluids I

Sal introduces us to fluids and their properties.

 

Fluids II

The lecture on fluids continues. The main thing here is to understand the relationship between cross-sectional area and velocity. You also need to understand pressure and buoancy.

 

Thermodynamics

From fluids we move into thermodynamics. Stuff like heating, cooling and thermal expansion. In the past GAMSAT has not had that much in terms of thermodynamics, but, just to be sure we will learn it anyway.

 

Magnetics I

This is one of the trickier areas of physics. Stick with it though and you will get it.

 

Magnetics II

Sal continues his lecture on magnetism. Explaining how magnetic fields interact with electric charges.

 

Magnetics III

More magnetism (yay!). This time we start with an example of a particle moving through a magnetic field.

 

Charge

In order to excel at section III of GAMSAT it is necessary not to know the theory but to understand it. There is a big difference. So make sure you actually undertsand what charge is and have a think about the nature of electricity.

 

 

Electrostatics

Here Sal educates us about electric fields whicha re very similar to magnetic fields.

 

 

Voltage

Think of voltage as how fast the current flows. Voltage is a measure of the number of coulombs per second.

 

 

Capacitance

In 2010 there was a capacitance question on the GAMSAT and it did not give you the formula. In case such a thing happens again you had better understand capacitance.

 

 

Circuits I

Circuits are a GAMSAT favourite - they are very easy too.

 

 

Circuits II

You will be expected to know the differences between a series and parallel circuit. You must know the rules for calculate the voltage, current and resistance of each type of circuit.

 

 

Waves

In this video Sal covers the fundamentals of waves.

 

 

Doppler Effect

The Doppler Effect is a cool little phenenom caused by the movement of a wave emitter and/or receiver.

 

Reflection

Time to learn about reflection - a key behaviour of waves.

 

Refraction

Refraction is where a wave has its cause altered due to a change in medium.

 

Virtual Images

Lens problems have a habit of appearing in GAMSAT so its time to focus on lenses and reflect on mirrors (pun intended).

Real Images

It is also important that you understand real images. Sal does the honours.

Focal Point and Images

Just in case you are not provided with the formula it is best that you know it.

Radioactive Decay

Here we learn about the different types of decay. Pretty basic stuff.

 

Half-life

Expect a half-life question in GAMSAT. Its not that tricky - just remember that it loses half its mass every set time period.