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DEFIIINING GRAVITY!

DEFIIINING GRAVITY!

 

Yesterday afternoon, we were learning all about gravity. We learnt that if we drop an object, gravity pulls it downwards towards the centre of the Earth.

We learnt about Sir Isaac Newton who developed the first description of the force and had enough knowledge to describe gravity. Contrary to belief, the apple did not fall on his head!

We then set up an experiment to determine whether or not all objects fall at the same rate. We had to predict whether a basketball, full water bottle and a carrier bag would hit the ground at the same time.

A lot of predictions talked about the weight/mass of an object would cause it to travel faster towards the ground and we were surprised to learn that this isn’t the case. While gravity pulls an object down, the shape of an object and how much air an object pushes against (air resistance) can change the rate at which it falls. So mass does not affect acceleration due to gravity!

Well done, Year 5. You are truly super scientists!

 

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