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What is homeostasis?
The body’s ability to maintain a stable condition
What is the endocrine system?
A system of glands that produces hormones, e.g the pancreas.
What are the 2 parts of the nervous system?
The central nervous system and the peripheral nervous system.
What are the different parts of a neurone
Cell body
Dendrites
Axon
What are the 3 types of neurons?
Sensory
Interneurons
Motor Neurons
What does the circulatory system do?
It is the body’s transport system for nutrients, oxygen, hormones and heat.
What is a pathogen?
A virus or bacteria that can cause disease.
What are the 3 lines of defence?
Skin
Fever
Target pathogens specifically
What are forces
A push or a pull
What are the two types of forces?
Contact and non-contact.
What is inertia?
Objects with mass want to stay at the same speed and direction. ( even if they are not moving)
What is the difference between weight and mass?
Weight: how much it weighs
Mass: how much matter it has
What is the formula to calculate weight?
Weight = mass x gravitational field strength.
W=MxG
What is Newton’s second law?
F=MxA
Net Force = Mass x acceleration
What are the units for acceleration?
M/s squared
What is an inclined plane?
An incline plane is a type of simpel machine
What are the benefits of an inclined plane?
Decreases the effort force needed
What is an example of an inclined plane?
E.g. an axe
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