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

The purpose of this lab is to examine impact craters. Impact craters occur when a high velocity object collides with a larger body

Extracts from this document...

Introduction

John Paul Chunga

Mr. Arce-Larreta

1st Black

IB Physics SL Lab

Internal Assessment

Introduction

The purpose of this lab is to examine impact craters. Impact craters occur when a high velocity object collides with a larger body. The collision results in a circular depression crater into the larger body. Craters like these described are results of meteor strikes on planets and can yield depressions that are quite large.  The craters occur on our planet along with the moon and all other planets in our solar system. The physical world involves craters and should thus be explored.

Therefore an investigation must be done in the formation of craters.  This formation will be examined through the basic properties, which they are formed. The energy from the object coming into impact can be compared to the volume of the crater create since deformation of the surface is the dominant process. Therefore since the volume of the crater is equal to the diameter cubed, the diameter cubed is set equal to the kinetic energy produced from the collision. This representation is then solved to find the diameter and yields the equation:

image10.png

...read more.

Middle

70.00

27.95

28.16

26.46

80.00

28.02

29.78

27.87

90.00

30.35

30.67

28.32

Sandbox with 350 mL of Water

Height

(cm)

Trial 1

Diameter

image12.png

Trial 2

Diameter

image12.png

Trial 3

Diameter

image12.png

Mass of the “meteor”

image13.png

50.00

34.16

34.39

33.95

45.92

60.00

35.43

34.90

35.12

70.00

35.86

35.35

36.11

80.00

36.54

36.77

36.94

90.00

37.86

37.69

37.99

Sandbox with 700 mL of Water

Height

(cm)

Trial 1

Diameter

image14.png

Trial 2

Diameter

image14.png

Trial 3

Diameter

image14.png

Mass of the “meteor”

image13.png

50.00

41.32

41.20

40.98

45.92

60.00

40.95

40.65

40.78

70.00

40.23

40.11

40.03

80.00

39.06

39.22

39.02

90.00

38.14

37.79

38.34

Measurements were taken from the edges of the depressed landing pad.

Occasionally, an obviously wrong diameter was obtained, but these were ignored.

Analysis

Now under analysis, one must consider the two equations derived:

image15.png and image16.png.

All things considered, the equations need to be put out of the exponential to a logarithmic form to yield a straight line.

image17.png

Therefore the graph will be image19.png vs. image20.png, yielding 3 graphs and calculations.

Before the graph, the averages of the trials at each height must be taken to yield a singular number to graph. Using this number, the averages will be put in the new natural log equations.

The table below shows the averages of the trials at the heights for each sandbox.

Sandbox With No Water

Height (cm)

Average Diameter image12.png

50.00

25.85

60.00

26.93

70.00

27.52

80.00

28.56

90.00

29.78

Sandbox With 350 mL of Water

Height (cm)

Average Diameter image12.png

50.00

34.17

60.00

35.15

70.00

35.77

80.00

36.75

90.00

37.85

Sandbox With 700 mL of Water

Height (cm)

Average Diameter image12.png

50.00

41.17

60.00

40.79

70.00

40.12

80.00

39.10

90.00

38.09

...read more.

Conclusion

Additionally, there should have been more trials taken. Three trials was serviceable and showed a trend that was matched with an average, but the more trials the more accuracy. The results could have been affected had a sixth or tenth trial had taken place, but since there were so many sandboxes this would not be possible. This highlights the need for the simplification in terrain and therefore the limiting of terrains created by the sandboxes.

Finally the last improvement would occur with the measuring of the craters. The metal calipers would yield numbers that were useable, but it would be more accurate to have a different way to measure it. Molds that solidify the diameter of the crater would be useful in yielding accurate results. Still, this metal caliper error could be nullified by more trials on a singular sandbox.

Overall the experiment was quite the success since it validated the hypothesis posed and shed light on the formation of craters, which is a long misunderstood aspect of physical geography.

...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. Marked by a teacher

    Investigating the factors related to the crater formed by a falling object.

    3 star(s)

    In this case, increase the height by 10 centimeters. * Use five different drop heights to make the relationship more clear: 10 cm, 20 cm, 30 cm, 40 cm and 50 cm. * The type of surface will be controlled by using the same sand for all the different drop heights and by keeping the surface of the sand parallel to the ground.

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

    Then, we can roughly determine whether a greater displacement range would lead to an increase in work done against friction, work done against air resistance and rotational kinetic energy of the metal ball.

  1. How does the mass of a spherical object and the height from which it ...

    object, or the higher it is dropped from, the larger the resulting crater will be. Methods: Materials: * 4 balls of differing mass * A Tupperware container (measuring .11 x .20 x .33 m.) * Sand * A meter stick * A scale Procedure: 1.

  2. Investigate the Size of Craters in Sand Due to Dropped Object.

    Hypothesis: An experiment to investigate the size of craters in sand due to dropped slotted mass is carried out with the apparatus shown in the diagram below. The size of craters here is represent by the volume of craters itself.

  1. The Affect of Mass on the Time It Takes an Object To Fall

    After five trials were run for data point three, two more paperclips were added to make a total mass for data point four consist of seven paper clips plus the mass of the paper helicopter. Five trails were then run for data point four followed by the addition of two

  2. Pendulum Lab

    given varied in the number of figures given (tenths of a second for the first stopwatch and hundredths of a second for the second stopwatch), however due to the general inaccuracy of the testers reaction time the uncertainty will be set at (�0.1s)

  1. HL Physics Revision Notes

    Whenever thermal energy flows from a hot object to a colder object, overall the total entropy has increased Topic 11: Wave Phenomena: Nature of standing (stationary)waves Standing wave Normal (travelling) wave Amplitude All points on the wave have different amplitudes.

  2. How does the sinkage depth of a tyre affect its rolling resistance ?

    tire to be inflated just 15.3% and 30.6% of their maximum capacity respectively . While pedaling the bicycle because of the lack of the air pressure of the tire and bicycle frame comes in close contact and force the sidewalls of the tire to flex due to the force that

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