Patterns And Realationships And Genitics

Question 1

Speed

Answer 1

The distance travelled per unit until time is known as speed

Question 2

Velocity

Answer 2

The distance an object travels per unit until time in a given direction

Question 3

Acceleration

Answer 3

The change in velocity is known as the acceleration of a body

Question 4

Acceleration unit

Answer 4

Ms-2. Or m/s2

Question 5

Stationary

Answer 5

If something is not moving, a horizontal line is drawn on a distance-time graph
Time is increasing to the right, but its distance does not change. It is stationary.

Question 6

Forces

Answer 6

Forces are what makes things move, like a push or pull

Question 7

Non contact force

Answer 7

Gravity, magnetic force, electric force

Question 8

Contact force

Answer 8

Friction, tension(pull), air resistance, applied force(push), spring force(twist)

Question 9

Friction

Answer 9

Is the force that resists things rubbing against each other. It helps you to walk without sliding

Question 10

Air resistance

Answer 10

It is the force that slows things down where they are moving

Question 11

Buoyancy

Answer 11

Is the force that pushes things up in water

Question 12

Mass

Answer 12

The mass of an object is the amount of matter that is in the object

Question 13

Weight

Answer 13

The weight of an object is the force of gravity that acts on an object

Question 14

Proportional relationship

Answer 14

Results will often show patterns. If you increase one variable- the other will increase or decrease in response.

Question 15

Anomaly’s

Answer 15

Graphs that show results which do not follow a trend

Question 16

Directly proportional

Answer 16

Results may increase proportional (by the same amount)

Question 17

Graphs

Answer 17

Graphs are a good way to analyse results and discover patterns. They can show a general increase or decrease, a curve or a straight line

Question 18

Elastic behaviour

Answer 18

If a material returns to its original size and shape when you remove the forces stretching or deforming it (reversible deformation) we say that the material is demonstrating elastic behaviour

Question 19

A plastic or in elastic material

Answer 19

Is one that stays deformed after you have taken away the force. If deformation remains (irreversible deformations) after the forces are removed that is a sign of plastic behaviour

Question 20

Hookes law

Answer 20

The amount a spring stretches is proportional to the amount of force applied to it

Question 21

Genetics

Answer 21

The study of the inheritance of characteristics

Question 22

Inheritable characteristics

Answer 22

Many physical characteristics such as eye colour and shape of ears were inherited from your parents

Question 23

Chromosomes

Answer 23

The nucleus of each sex cell contains 23 thread like structures called chromosomes

Question 24

Chromosomes are made of

Answer 24

Protein + DNA. These chromosomes carry genes

Question 25

Genes

Answer 25

Are chemicals found on chromosomes that pass on information from parents to children

Question 26

DNA

Answer 26

Deoxyribonucleic acid

Question 27

46 chromosomes

Answer 27

When an egg and sperm cell fuse (each has 23 chromosomes) they give the individual they are creating 46 chromosomes