S2 - Forces and Space (complete)
No description yet. This curated deck is ready for daily study.
Card preview (24)
Force
A push or a pull which can change an object’s speed, direction or shape.
Newton meter / balance
Instrument for measuring forces
Newton (N)
Unit forces are measured in
Weight
Force produced by gravity
Reaction
Force from a surface opposing gravity
Traction
Force producing movement for an object on a surface (like the ground)
Friction
Force between two surfaces opposing motion e.g. between tyres and the ground
Lift
Upwards force for a flying object
Thrust
Force from a propeller or jet engine
Drag
Force opposing motion for an object moving through a fluid (liquid or gas)
Upthrust
Upwards force for a floating object, produced by buoyancy
Fluid
Liquid or gas
Streamlined
Smooth, curved, pointy shape designed to reduce drag
Name this type of object Large space object which is not large enough to make its own light
Planet
Name this type of object Large space object which makes its own light (e.g. the Sun)
Star
Name this type of object Large object, but smaller than a planet (e.g. Pluto)
Dwarf planet
Name this type of object Object smaller than a dwarf planet
Asteroid
Name this type of object Object smaller than an asteroid
Meteoroid
Name this type of object Small icy objects which display bright tails when close to a star
Comets
Astronomical Unit (AU)
The distance from Earth to the Sun – 150 million km
Light year
The distance light travels in a year – 9.5 million billion km
A large gravitationally bound system of stars, numbering from 100 million to 100 trillion
Galaxy
Exoplanet
A planet outside our own Solar System
A force can change an object’s ________, _________ or__________.
speed, direction or shape