Emma Johnson
To investigate a factor which affects the distance travelled by a projectile
Aim
My aim is to fire a margarine tub across the floor using an elastic band. I will identify the factors that affect how far my tub travels and then to study the effect of varying one of them.
Plan
After a lot of thought to which factor of the experiment I should change, I have decided to vary the weight in the margarine tub. I will accomplish this by starting my investigation with nothing in the tub, then add 100 g, do the experiment, record my results and then doing this again but with 200g. I will continue doing this 5 times adding another 100g each time. To be more specific in exactly what I shall I be doing, I will place an elastic band around the bottom of a lab stool and place my margarine tub within it. I will then pull back both the elastic band and tub then let go enabling it to be fired across the room. At the place in which the tub stops I will measure from the stool to where the margarine tub is and write down my results on a table. I will then do this again and again but changing the weight in the tub. Over all I shall do this 5 times.
