Science Y9 : November End of Unit Exam on: -Variation -Fit & Healthy -Pressure & Moments -Speed
|
Erstellt von Luca Cameron
vor etwa 9 Jahre
|
|
Schließen
|
|
Erstellt von Luca Cameron
vor etwa 9 Jahre
|
|
Where are your chromosones found?
How many types of chromosones are there and how many in total?
What are chromosones for?
Chromosones have a special thick _____ coat
What is selective breeding
For the topic fit and healthy, what do the 4 "s" stand for
what are the 7 food groups
Name some harmful chemicals in cigarettes
what are the four types of drugs
what is a depressant drug
what is a recreational drug
what is an addictive drug
what is a stimulate drug
what are the two types of variation
what is variation
what's the difference between a breed and a species
chromosones are divided into sections called _____
there are about _____ different genes in every human cell
what is a gamete
TRUE or FALSE:
genes come in many different forms
sex cells are specialised to transfer genes from parents to _____. The nuclei of a sex cell (gametes) only contain _____ of the chromosomes of normal cells. In fertilisation one sperm cell enters an ____ (egg cell). The two nuclei fuse together to form a complete set of genes
Changes in genes are called _____
what is a cross breed
name some useful characteristics in plants
How do plant breeders breed plants
what does it mean by being 'fit'
which organ systems work together to release energy from food
all the cells in your body use aerobic respiration to release energy from _____
formula for aerobic respiration
name some of the poisons from cigarette smoke
what is needed for healthy teeth and bones
What is the equation to find out the pressure of something
how could we change the pressure?
name some units for pressure
why does water pressure change with depth
what happens when a gas is compressed
what is a hydraulic system
define these words:
-load
-effort
-pivot
give an example of an everyday lever
the longer the lever the (bigger/smaller) the force
define 'moment'
what is the equation to calculate the moment?
what is the equation to calculate speed?
if the forces on an object are balanced, the speed (stays the same / increases / decreases / stops)
what factors effect acceleration?
what is acceleration?
how can you reduce air resistance?
the faster you go, the (smaller/bigger) the air resistance
if the forward force on a car is greater than the backwards force, the _____ force makes the car speed up
if the car has a forward force of 100N, but a backwards force of 20N, what will the resultant force be?
what formula do we use to work out the acceleration?
what is terminal velocity?
what are fluids?
moments are measured in...
a muscle can only (push/pull)
since a muscle can only pull, muscles have to work in _____ pairs to be able to move bones back and forth. Give an example
When you fracture or break a bone, there are many different words/types to differentiate these injuries. Name 2
the tracks used in bulldozers are called ____ tracks and they are useful for...
Atmospheric Pressure is about ________ Pa. (a number)
