Forces Flashcards
What do forces do?
Forces explain why objects move in the way they do or why they don’t move at all
Describe a force
You can’t see forces but you can see their effect
Name 3 types of forces
Contact force Friction Air resistance Gravity Reaction force Magnetic force
Describe what the force of gravity does
Gravity is a non-contact force that pulls things down
What is reaction force?
The force that reacts against gravity with an equal amount of power
What does upthrust do?
Upthrust supports you when you float
What is a non-contact force?
A force that doesn’t require 2 things touching each other
What is a contact force?
A force that requires 2 things touching each other
What are 2 types of non-contact forces?
Gravity
Magnetic
How do you measure forces
With a newton metre. It’s in newtons-surprising isn’t it
What force stops us from constantly falling over
Friction🎉
What are unbalanced forces
When one force is greater than another
Force
The ability to move stuff without touching them
Force diagram
A diagram showing the result of which force is stronger at a particular moment
Interaction pairs
Two forces acting against each othe