Newton's second laws
This is the force that pulls things "downward"
What is gravity?
This is the unit for force.
What is a Newton?
This is inertia
What is the tendency of an object to resist changes in motion?
The reaction force for the ground rubs me.
Name the action force.
What is I rub the ground?
Acceleration is......
Slowing down
Speeding up
changing direction
A balanced system has this net force
When the net force equals zero?
For every action there is an equal and opposite reaction.
What is Newton's 3rd Law?
Which object will have more inertia, an object with a mass of 5kg or an object with a mass of 10kg?
what is an object with a mass of 10kg?
For every action there is an ______ and _______ reaction
What is Equal and Opposite?
The cause for a mass to accelerate or change direction.
What is an unbalanced force?
Newton's _______ law defines a force to be equal to change in momentum (mass times velocity) per change in time
What is Newton's 2nd Law?
An object at rest will remain at rest and an object in motion will continue moving at a constant velocity unless acted upon by a net force
What is Newton's First Law?
The net force provided by the elevator motor to move a 600N person and the 9000N elevator upwards
What is 9600N?
A canon ball is shot out of a canon. Which will have a smaller acceleration? (cannon or ball)
What is the canon?
A larger object requires _____ force to accelerate than a small object
more
The force which always rubs you the wrong way and slows you down.
What is friction?
A horse moves a cart because THIS reaction force of the horse pushing against the ground is greater than the reaction pair of forces on the wheels of the cart.
What is the ground pushing the horse?
If a car is traveling at 65 mph and you are sitting in it, what speed is your body traveling?
35 mph
When there is a change in direction
What is acceleration?
What is Newton's 2nd law (the mathematical formula)
F=MA
The term used for the sum of all the forces acting an an object.
What is the net force?
The force that is opposite to you pushing on a door?
What is the door pushing against you?
A balanced force causes to happen.
What is no change in motion?
A soccer ball with a mass of 430g and traveling with an acceleration of 25m/s2. With what force does it hit the window its aimed at?
10,750N