Forces
A push or pull on objects interacting with each other
What are forces?
This unit is used to measure force
What is the Newton?
Newtons third law
Every action has an equal and opposite reaction.
T/F: A reaction will always be smaller than the action that caused it.
What is False?
The gravitational acceleration of this planet is 9.8 m/s^2
What is the gravitational acceleration of Earth?
Which of Newtons laws of nation is this:
For every action there is an opposed and equal reaction
What is Newtons third law of motion
Action and reaction are always in ________________.
In equal proportion.
These units are used to measure mass.
What are Kilograms/grams/pounds?
F = ma
What is the formula for Newton's Second Law of Motion?
T/F two equal and opposite forces acting on the same object make an action-reaction pair.
False
At this rate of acceleration a ball would fall 19.6 meters in 2 seconds.
What is the amount of distance and time a ball would travel with a constant acceleration of 9.8 m/s^2?
A force that, when contact between a surface and an object happens, is applied.
What is the Normal Force?
____ is constant, were as _____ is dependent on gravity.
Mass; Weight
The magnitude of the normal force that is given
Fn=mgcos0
Objects of different mass when dropped at the same time from the same height hit the ground at _______________________________ .
In practical use, they hit the ground at the exact same time, this is due to how much more massive the planet is compared to the objects. In reality, they hit the ground at a slightly different time, this difference is however immeasurably small.
The equation for normal force on a horizontal plane.
What is Fn = mg?
The downward force acting upon an object due to gravity
What is Weight?
The attraction of motion is always proportional to the motive force impressed and is made in the direction of the right line in which that force is impressed.
Newton's book Principal
No other force, except gravity, are acting on the object
What is free falling?
This term can be calculated by applying Newton's Second Law onto an object on a flat surface.
What is Fn (Normal Force)
This force is directly proportional to the mass of 2 objects and inversely proportional to the distance between them.
What is gravity?
Force = mass * acceleration
What is newton's 2nd law of motion.
Relationship between mass and wight
What is:
Mass is a property?
Weight is a force?
Normal forces on any plane can be calculated by using __________________________________________.
Fn = Wcos0
Were W = mg
and Q =the angle of the plane