Fingerprint and Marks Essays

Submitted By swaggerqwe
Words: 1358
Pages: 6
Open Document
NAME:

SCIENCE TEACHER: (circle code)

10A

SCIENCE
Year 10 Examination 2012
10A – 40 marks
Make sure that you have answered all the questions in paper 10B before you start this paper
Time allowed for both examinations: 2 hours

Answer all questions in the spaces provided on the paper.
Show all your working in calculations; marks are awarded for it.
Give units for all answers (eg kg or m) unless they are already provided.

For Teacher Use

Question
Marks
gained
Marks
available

1

2

3

4

5

6

7

8

9

10

11

Total

2

5

5

4

2

3

4

5

4

3

3

40

Question One: Energy [2 marks]

The drawing shows a television set.

Use these words to complete the sentences below. electrical  heat  light  sound
The television is designed to transform (convert) ______________ energy into______________ energy at the screen.
The loudspeaker transforms kinetic energy into ______________ energy.
Some energy is wasted as ______________ .
Question Two: Forces [5 marks]
(a) Alice goes skydiving. This diagram shows two forces acting on her as she falls.

Which statement is correct? (Tick one)

 force P is gravity and force Q is air resistance
 force P is air resistance and force Q is gravity
 force P is gravity and force Q is acceleration
 force P is acceleration and force Q is air resistance
(b) A pole vaulter wants to find out which material is best for making a landing surface.

Four materials are tested in a lab.
• A dummy body is dropped onto each surface.
• It is dropped from the same height each time.
• The maximum force on the dummy is measured for each surface.

Force (N)

The graph shows the maximum force exerted by the different surfaces.

surface material
(i)

Which material should be used for the landing surface?

Explain your answer.

(ii) Why is the height kept the same each time?

The experiment is repeated with a lighter dummy.

(iii) Will the maximum force on the dummy increase, decrease or stay the same?
Circle your answer. increase  decrease  stay the same
Explain your answer.

Question Three: Electricity and magnetism [5 marks]
(a) Here are three simple circuit diagrams.

Which circuit (A, B or C):
(i) will have the brightest bulbs? ____________
(ii) does not allow the bulbs to light? ____________
(b) If one bulb goes out in circuit B, what will happen to the other bulb?

(c) Modern Christmas tree lights are usually connected in parallel.
Explain how this is an advantage.

(d) A bar magnet has been glued to the top of the toy plastic car.

(i)

What would happen if another bar magnet was moved towards it, as shown in the diagram? The toy car would (tick one)

 Stay where it is
 Move forwards (right)
 Move backwards (left)
 Turn around
(ii)

Why was a plastic car used in this experiment and not a metal car?

Question Four: Crime Lab [4 marks]
Finger prints are often left at a crime scene.
(a) Fingerprints can be sorted into three types.
Draw a straight line from the fingerprint to its correct type.

finger print

type
• Loop




• Arch
• Whorl

(b) Finish the sentences by choosing the best word from the list.

dust  fats  oils  nails  wipe
Fingerprints can get onto surfaces when __________________ from the skin are left.
Special powder can be used to ___________ for fingerprints.
(c) What two things you must do to make a record of your fingerprints? Put ticks in the boxes next to the two correct statements.

 Dip your finger in salt crystals
 Push your finger onto an ink pad
 Roll your finger onto white paper
 Wrap filter paper around your finger
(d) At the crime scene, the police take fingerprints form innocent people. Why do you think this is done?

Question Five: Earth Science [2 marks]
This picture shows an active volcano.
The liquid rock from the mantle is erupting from the volcano.
It is causing a lot of damage.
Show More

Related Documents: Fingerprint and Marks Essays

Wrongful Fingerprint Essay examples

blood, hair, fibers, fingerprints and weapons. Scenes of property crimes are commonly characterized by forcible entry with tools leaving marks on doors, windows, safes, money chests, cash registers and desk drawers. Among the most common types of evidence found at the crime scene are fingerprints, blood, hair, fibers, documents, footprints or tire prints, tool fragments, tool marks, broken glass, paint, insulation from safes, bite marks, firearms and explosives. Fingerprints are often found at crime…

Words 412 - Pages 2

Forensic Review Essay

burglar uses for home entry is known as their modus operandi Bertillon measured various body lengths as a means of individual identification Forensic Anthropologist can determine age through bone examination Forensic Odontologist-assesses bite marks Forensic Entomologist-assists in insect identification and region of death Forensic Toxicologist tests for drugs and poisons Forensic Serologist test bodily fluids Bail-money to guarantee a court appearance Ballistics-the study of projectiles…

Words 2200 - Pages 9

Power Of Evidence Notes

presented in a crime investigation to prove or disprove the facts of the issue. 3. Trace Evidence refers physical evidence that is found at a crime scene in small but measurable amounts and can be anything from strands of hair or skin cells to tool marks and physical (fracture) matches. Trace evidence can be used to identify a victim or suspect or determine how a crime was committed. 4. The value of trace (or contact) forensic evidence was first recognized by Edmund Locard in 1910. He was the director…

Words 714 - Pages 3

Anna Garcia Case Study

First on the list is the fingerprint found on a glass of spilt orange juice found next to victim’s body. This fingerprint was then put through a lab which was closely looked at for identification mark and ridge patterns, then compared to the many people of interest, the fingerprint ridge pattern matched Alex Garcia who is Anna Garcia’s ex husband. After the blood that was found next to Anna’s right temple…

Words 690 - Pages 3

Blood Patterns Essay

Most analysis fits into one of the following categories: Types of Analysis Comparison Most types of evidence require a control with which to be compared (example: fingerprints, hairs) Visual If evidence can be utilized or compared through unaided observation, then that analysis is called visual (example: fingerprints, tool marks) Microscopic A microscopic analysis indicates that evidence must be observed with the use of some type of microscope (example: hairs, fibers) Chemical If an article…

Words 2041 - Pages 9

Using Blood Evidence In Homicide Cases

and statistics about the purpose. The purpose of having homicide detectives are they have multiple ways to pursue a criminal that help solve murder cases. Fingerprints are used as important evidence to help solve a case. Nagel, the author of “Forensic Science,” asserts how fingerprints help the investigation. He states “Although fingerprints have been used by crime investigators for more than a…

Words 1197 - Pages 5

History Of Information System

CONTENTS………………………………………………………….2 3. ABSTRACT………………………………………………………………………..3 4. HISTORY…………………………………………………………………………..4 5. TYPES OF BIOMETRICS………………………………………………………….6 6. FACIAL RECOGNITION…………………………………………………………..7 7. RETNA SCANNER………………………………………………………………….8 8. FINGERPRINT……………………………………………………………………….9 9. HANDPRINT…………………………………………………………………………9 10. VOICE AUTHENTICATION………………………………………………………10 11. AUTHENTICATION………………………………………………………………...11 12. SUMMARY…………………………………………………………………………..11 13. REFERENCES…………………………………………………………………………

Words 2337 - Pages 10

Essay about Forensic Information

Where? In a lab and other places such as court. To provide expert testimonies | Forensic Photography | Produce a permanent visual record from the scene of accidents and crime scenes for use of evidence. Including overview photographs, tire marks, fingerprints etc. | Has to be selected from a crime scene investigator or officer, they must be able to understand health and safety legislation | Needed at the start of the investigation and also at court | Make an accurate photographic record of an event…

Words 541 - Pages 3

Forensic Odontology Research Paper

Throughout history there has been a variety of ways to solve a crime. There’s been blood analysis, fingerprint analysis, and bite marks. Bite marks are used to identify a suspect that has bitten a victim therefore leaving a bite mark impression. This method can be used to solve a crime however it is inconsistent due to teeth markings leaving bruises making it difficult to identify the markings. Bite marks can still provide dental records, teeth markings and impressions on skin. Dental records provide…

Words 364 - Pages 2

Biometrics and Biometric Fingerprint Recognition Essay examples

Optimization of biometric Fingerprint Recognition parameters using Genetic Algorithms Report submitted for CPSC - 6126 Fall 2014 Term Paper By Krishna Sindhuri Nagavolu 13th December, 2014 Optimization of biometric fingerprint recognition parameters using Genetic Algorithms Abstract This research paper discusses about parameter optimization for biometric fingerprint recognition with the use of genetic algorithms. An accurate access control system is very important…

Words 2901 - Pages 12