• Join over 1.2 million students every month
  • Accelerate your learning by 29%
  • Unlimited access from just £6.99 per month

Lab Report " Investigating the Physics of Road Safety

Extracts from this document...

Introduction

Lab Report – Investigating the Physics of Road Safety

Aim – Investigate how the speed of the trolley affects the stopping distance.

Hypothesis – If the speed of the trolley is increased, then the block will travel a further distance meaning that the stopping distance is longer.

Variables:

MV: Speed (Slope)

RV: Stopping distance (of the wood block)

CV: Ramp, trolley, wooden block, books

Equipment:

  • Ramp
  • Trolley
  • Books (to change the slope)
  • Wooden block

Method:

Abstract:In this experiment, the slope of the ramp will be changed to increase the speed to then investigate how the speed affects the stopping distance of the wooden block.

Procedure:

- Firstly, place two books (2cm width each book) under the top part of the ramp.

- Then place the wooden block at the end of the ramp and make sure to have the meter stick ready to measure.  

- To launch the trolley, place the trolley at the elevated part of the ramp and let go.

...read more.

Middle

            PE = mass (N) x gravity (10) x height (m)         

1. PE = 0.8.15 x 10 x 0.02m = 0.163J

2. PE = 0.8.15 x 10 x 0.04m = 0.326J

3. PE = 0.8.15 x 10 x 0.06m = 0.489J

4. PE = 0.8.15 x 10 x 0.08 = 0.652J

5. PE = 0.815 x 10 x 0.1 = 0.815J

6. PE = 0.8.15 x 10 x 0.12 = 0.978J

Height of Ramp (m)

P.E (J)

0.02m

0.163J

0.04m

0.326J

0.06m

0.489J

0.08m

0.652J

0.1m

0.815J

0.12m

0.978J

After that we calculated the velocity of the trolley by rearranging the Kinetic Energy (KE) formula:

image00.pngimage04.png

image07.png

image08.png

For all of the different heights, we calculated the velocity.

1. image09.pngm/s

2. image10.pngm/s

3. image11.pngm/s

4. image12.pngm/s

5. image13.pngm/s

6. image01.pngm/s

Height of Ramp (m)

Velocity (m/s)

0.02m

0.632m/s

0.04m

0.894m/s

0.06m

1.095m/s

0.08m

1.265m/s

0.1m

1.414m/s

0.12m

1.549m/s

...read more.

Conclusion

        In conclusion, the hypothesis which said that as the speed of the trolley increases, the stopping distance would also increase was proven to be true.  The data I collected showed that the potential energy increased from 0.163J to 0.978J as the height of the slope was increased.  As the potential energy increased, the force at which the trolley was hitting the wooden block was greater meaning that the kinetic energy was larger which made the stopping distance of the trolley increase.

...read more.

This student written piece of work is one of many that can be found in our International Baccalaureate Physics section.

Found what you're looking for?

  • Start learning 29% faster today
  • 150,000+ documents available
  • Just £6.99 a month

Not the one? Search for your essay title...
  • Join over 1.2 million students every month
  • Accelerate your learning by 29%
  • Unlimited access from just £6.99 per month

See related essaysSee related essays

Related International Baccalaureate Physics essays

  1. The lab demonstrates what kind of motion is observed when the metal trolley is ...

    The uncertainty of velocity and acceleration is not constant. After recording all necessary datas, the averages of time, velocity, acceleration and uncertainty were calculated- the measurements of each six distances were added and divided by number of the measurements-six. All measurements were rounded to second decimal place.

  2. IA Lab report rubber bands

    As it was now, you had to poke the rubber band above the rear flag so it would be released. This worked relatively well, but the rubber band sometimes did hit your finger and its range hence decreased. The rubber band also had a tendency to hit the second flag on its way downwards and forward.

  1. Motion of the trolley on the inclined plane

    The conclusions are reasonable. In the experiment there was error due to the lack of precision of the ruler. It's not possible to be precise using the standard ruler measuring with precision to millimeters. Another possible error can be present due to the inability to see and mark the exact point where the identical distances were.

  2. Simple Harmonic Motion Physics HL Lab Report

    19 s 19.5 s 20 s 19.5 10 cm 15 s 14 s 14 s 14 Now, we can divide the average reading by 10 to find the period (T) of the pendulum. Average Reading R/s � ?R = � 0.5 s Period (T)

  1. THermal Physics Lab

    m C(p) (T2 - T1) Q = (1kg/ L) (0.500 L) (3770 J/ Kg K) (29 - 2) �C Q = -50895 J Again the heat would be negative because the hot milk has lost its energy or in other words it has got colder.

  2. Lab Report " Which fuel is the better source of energy?

    This set of results proves that my hypothesis is wrong because I predicted that the greater the number of carbons in the fuel then the more energy would be released. However this was not the case so therefore the hypothesis of my experiment is incorrect and has been proven wrong.

  1. In this extended essay, I will be investigating projectile motion via studying the movement ...

    elastic potential energy in the spring is converted into linear kinetic energy of metal ball. Moreover, as the metal ball rotates during the launch, part of the elastic potential energy stored in the spring is converted into the rotational kinetic energy of the metal ball.

  2. IB Physics Lab - Resistance

    be slightly less than the theoretical total resistance of that circuit, most likely due to the tolerance of the resistor(s). There was only one group of data that didn't follow this trend: Trial 1 of Parallel Circuits, where there was a positive 0.14% error.

  • Over 160,000 pieces
    of student written work
  • Annotated by
    experienced teachers
  • Ideas and feedback to
    improve your own work