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#Easy ib how to

The spin rate is connected to power, and hence you can relate the height of the waterfall to the power produced.the height from which you pour water) and see how this affects the spin rate of the turbine

You can then vary the height of the “waterfall” (i.e.If you are handy you could try to recreate this on a small scale using basic material.The essence of pumped storage systems is a turbine that is driven by water flow from a higher point.How does the power produced by a miniature pumped storage system depend on the height of the waterfall? Plot these variables on a graph and see if you get the relationship you expect using the SUVAT equations.Drop objects from various heights and measure their terminal velocity using e.g.How does the terminal velocity of an object depend on the height it is dropped from? Try to graph force against surface area and see what type of relationship you get.You can measure the force by a force sensor or by measuring kinematic variables, then applying SUVAT equations and Newton’s second law.

If you place it in the horizontal direction and aim it at balls of different surface area on a slippery surface (or in the air), the force provided is equivalent to air resistance.

You need a steady source of moving air, e.g.

How does air resistance depend on surface area of spherical balls?

Plot your results on a linear graph and see if they agree with the theoretical prediction.

There is no given equation for this in the IB syllabus but you can use the SUVAT equations to work out what relationship you expect.

Wait for a wind-less day and record the distance travelled by the projectile when you fire it at different angles.

You need to construct a simple projectile and a mechanism of firing it at different angles (consult your teacher on what materials are available for this).

Investigating how the horizontal distance travelled by a projectile depends on opening angle

On a F-V graph the gradient should be ρg.

Use for example water which has a known density, and a force sensor to measure the buoyant force.

Archimedes’ principle says that the buoyant force on an object submerged in a liquid is equal to the weight of the liquid it replaces.

Investigating Archimedes’ principle and finding g

The reaction force is equal to the weight of the piece of material that is on top.

Record the maximum force you need to apply to get the two materials to move relative to each other when they are in contact – this is the maximum frictional force.The coefficient is the ratio of maximum frictional force to reaction force.On an E-h graph, the gradient should be mgįinding the coefficient of static friction between two materials (you choose the materials!).For example, you could use a slow-motion camera to calculate its instantaneous speed near the ground and hence the kinetic energy.Drop a ball from various heights and find a way to record its energy as it bounces on the ground.Then compare gradients between graphs corresponding to different temperaturesįinding g by looking at the energy of a falling ball.Create separate F-x graphs for each temperature and find the spring constant as the gradient.The spring constant is the ratio of force applied to extension of a spring, so you would need a force sensor and a way of measuring extension accurately (e.g.How does temperature affect the spring constant? If you’re interested in getting additional support for your Physics IA, we have a team of expert IB Physics tutors that can help you plan, structure and execute your assignment.

#Easy ib how to

Have a look!īefore we start, make sure to download our physics IA guide, where we guide you through how to write an IA, step by step! Each one also contains a few pointers on how to perform the experiment. They are organised by topic below, so it is easier to find exactly what you are looking for. Here at IB Better we are well aware of how difficult of a balance this can be to strike therefore, we have here compiled a list of IA title examples to be used for inspiration. Typically, you would be looking for something that is relatively simple to do yet allows a thorough investigation that scores well on the IA criteria. 35 IB PHYSICS IA IDEAS: SIMPLE AND SCORE HIGH MARKSĬoming up with good IB Physics IA ideas can be a struggle.