newtons laws Flashcards
What has more inertia a freight train or car
freight train
What has more inertia a ping pong ball or a baseball
Baseball
What has more inertia a fast moving bowling ball or slow bowling ball
fast moving bowling ball
What has more inertia a rock on earth or a rock in space
Rock on earth
What has more inertia a fast baseball or bowling ball at rest
Boeling ball at rest
What is force
Change in direction, or velocity increase or decrease
Units of force
Newtons
Units of weight
Newtons
Unit of mass
Kilograms
Unit for acceleration
M/S2
A baseball player hits a ball. Which is greater: the force of the bat on the ball or the force of the ball on the bat? What happens to the bat and the ball
Becomes equal and opposite
Newtons 1st law states
Object will remain at rest until acted upon by an outside force
Will continure to move until acted upon by an outside force
Wont move until acted upon by a force
Will move in straight line until acted upon by another force
Law of Inertia applies to
moving and non moving objects
After a cannonball is fired into frictionless space, the amount of force needed to keep it going is…
Zero, no force is nessesary
A sheet of paper can be withdrawn from under a container of milk wothout toppoling it, if paper is jerked away quickly the resason this can be done is that
The carton has inertia
One object has twice as much mass as another object, the 1st object also has twice as much
inertia
compared to its weight on earth, a 50 kg object on the moon will weigh
less
The mass of a dog that weighs 100 N is about … (kg)
10 kg
An object following a straight line path at a constant speed
must have zerohas zero acceleration
Acceleration due to gravity is the slope for what type of graph
Force vs Velocity
You would have a larger mass of gold if your chunk of gold weighed 1N on the ____
moon
on moon g=1.67
Equalibrium occours when
All forces acting rightword equal sum of forces acting leftward
What has more mass, a kg of feathers of kg or iron
They have same mass
Acceleration is produced by
Forces