newton first law
resistance of an object to change its motion
what is inertia
Mathemtical experssion for Newton's 2nd law
What is F= ma
Every action has an
What is equal and opposite reaction
a vector quantity representing a push or pull
what is force
Which property determines how much inertia an object has
what is mass
The bus stops, but you keep moving foward
what is an example of inertia
m=2 kg, a =5m/s
What is 10 N
Wings push air down, air pushes wings up
why does a bird fly
The SI unit for force
what is a Newton
Which has more inertia an elephant or an ant
The elephant
State where net force is zero
What is equilibrium
F=10 n m= 2kg
What is 5m/s
The foot hits the ball, what does the ball do
it hits the foot back
Total force on an object that isnt moving
What is zero
Force that resists sliding between two surfaces
what is friction
Does an object in space keep moving forever
Yes, due to inertia
If mass doubles but force stays the same, what happens to acceleration
It is halved
The backward "kick" felt when firing a weapon
What is recoil
The force transmitted through a string or wire
What is tension
Rubbing your hands together creates this by product of friction
what is heat
What is the purpose of seatbelts
what is 5kg
Gas expelled backward creates forward thrust
How does a rocket fly
The force exerted by a surface perpendicular to an object
what is normal force
Friction when an object is not yet sliding vs when it is already spilling
What is static vs Kinetic friction