Investigation into the Factors Affecting the Speed of a Trolley on a Slope
APPARATUS:
* 1kg Trolley
* 1kg Masses
* Runway
* Light Gate
* Stop clock
* Power Pack
* Ruler
SAFETY:
* Make sure all wires are secured in sockets.
* No wires are trailing on slope.
* Voltage of light gate has to be between 9V and 15V.
* Weights must be put on trolley safely so there is no chance they
might fall off.
* When putting more than 2 weights on, stack safely.
* Turn electricity off after use.
* Before use make sure electricity is switched off so not to get a
nasty shock.
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In this investigation I am going to set up a 1kg trolley on a slope
and I will be letting it roll. I will use a light gate to start and
stop the stop clock using a piece of card measured at 10 cm.
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[IMAGE]I will find out the speed of the trolley by dividing the
distance (10cm) by the time that was read on the stop clock. The
results are shown on page . For each reading I 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 each height I will
be varying the mass of the trolley from 1kg up to 5kg.To make it a
fair test I will keep the light gate at the same part of the runway
each time and start the trolley off at the same point as well.
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PREDICTION:
I predict that the trolley's speed will change due to the varied
positions of the runway and the mass of the trolley.
The higher the runway is set, I believe the greater the speed of the
trolley will be.
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The results of this experiment are shown in the compiled student data in Table 1 below.
· I will mark the ramp with a distinctive line to keep it inline with
the length of the slope can be used to calculate the speed of the car
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