... let gravity be the force. * When putting the trolley at the top of the runway we will make sure that the back wheels of the trolley are touching the ticker timer - this way each experiment will start in the ...

... of the parabola graph is shown on graph one. From the graph we can that as the squash ball is thrown the height of it increases as time increases and as it reaches its peak the ball speed is expected ...

... downward force of gravity. If a tangent is drawn at the peak of the graph, a gradient and hence speed can be worked out. = 0.13 / 0.17 = 0.78 m/s Thus, the prediction is true. In addition the speed is ...

... will be inextensible, i.e. the string used will not be elastic. * Flat Surface - The plane over which the trolley is going to be run must be flat, i.e. it must not be slanted up or down or to a ...

... bends. For this experiment I will set up a one-meter ruler lying horizontally off the side of the work desk with a block of wood on top of it and a G Clamp holding it in place so it does ...

... is due to its structure. Hair is made of the fibrous protein keratin. Figure 1 shows keratin molecules are made up of three helices. They are held together by strong covalent bonds called sulphur bonds. Eleven of these molecules group together ...

... the source and the detector.'2 Air acts as an almost transparent medium to ?-rays, and the intensity (rate of energy arrival per unit area) of ?-rays emanating from a point source varies inversely as the square of the distance from the ...

... on top of the trolley. Measure the trolleys new acceleration as it travels down the ramp. 6. Repeat this for a mass of 2kg. This varies the mass of the trolley while keeping the force constant. 7. Plot two graphs of ...

... extension again. We will continue to keep adding 1 Newton and recording the results until the strip of plastic snaps or we have recorded a total of 10 results. We will redo the experiment twice again so that the results are ...

... the ticker timer once the trolley finishes you can see on the ticker tape that the dots will be closer together not farther apart like the last experiment. I will do this three times adding more weight each time, which ...

... respectively). Metre Rule: Wooden ruler of length 1 metre, accurate to + 0.5mm Blue Tack: A blue, tacky substance I will use to fix ticker tape to trolley. Symbols Used Force = F Mass of Trolley = M Acceleration = A Gravitational field ...

... will repeat it 3 times on each side of the slope and find the average, thus making this a piece of reliable evidence. I will be investigating the speed at 5 different heights ranging from 1cm to 13cm, and on ...

... let gravity be the force. * When putting the trolley at the top of the runway we will make sure that the back wheels of the trolley are touching the ticker timer - this way each experiment will start in the ...

... gain more accurate results; this will be because we will find the average out of the three results. Fair Testing Our test will be kept fair by using the same rubber band, this is because some rubber bands are more or less ...

... affects the rate of descent, is air resistance. Newton's second law of motion states that the acceleration an object experiences multiplied by the mass of the object is equal to the net force acting on the object. Thus, if a given ...

... material. I guess this is because of the context of his work. Nudity does not seem to be at its right place in a public library. However, I was willing to research Newton's work in detail at first hand, when ...

... from his own autobiography, for as public places, such as libraries did not had any material. I guess this is because of the context of his work. Nudity does not seem to be at its right place in a public ...

... black cat walk in front of your path brings bad luck". This is a superstition1, which can be dated back as early as 1646 when King Charles I of England owned a black cat. His fear of losing it was ...

... front of your path brings bad luck" and "the gravitational constant is 9.8m/s2" show the great diversity that is present in knowledge claims. They are given different status, as one is a superstitious claim while the other is a scientific ...

... These four concise and universal rules for investigation were truly revolutionary. By their application, Newton formulated the universal laws of nature with which he was able to unravel virtually all the unsolved problems of his day. Newton went much further ...

... began attending the Free Grammar School in Grantham. During this time Isaac lodged with the Clark family at Grantham. However he seems to have shown little promise in academic work. An uncle, William Ayscough, decided that Isaac should prepare for ...

... At the time there was a marine/river force and volunteers but they were not trained to handle crime or prevent it. At the start the metropolitan police force was given a black and blue uniform in order to be different ...

... effective, because they knew the local area and local trouble-makers, but little is known about them. Special Constables could also be enrolled. These officers could not, however, deal with big disturbances, like riots, and these were common in many parts ...

... Also this curfew would be a good idea because it would give new employees in the police force good experience of dealing with these situations so they are confident and experienced when it comes to a really big proper crime. ...

... that every object has a mass and that two masses attract each other. This attraction has a gravitational field strength, Newton wanted to calculate the gravitational field strength of the earth. There is a pendulum that involves g and calculates ...