Newtons Laws 1
This is a measure of the change in the velocity of a moving object. (speeding up or slowing down)
acceleration?
In a vacuum chamber, what is the only force acting on objects?
Gravity - 9.8 meters per second squared
The Unit of force is this.
What is the Newton?
This states that an object’s motion will not change unless an unbalanced force acts on the object.
Newton's First Law?
Which object will hit the ground in a vacuum with the most force; feather or bowling ball?
bowling ball
Newton’s Second Law can be summarized using this equation.
force = mass x acceleration?
If forces are canceled out, they are Balance or Unbalanced forces.
Balanced
Forces come in _____
Pairs
Which law? F=mxa
Newton's 2nd law
This is the tendency of an object to resist a change in its motion.
inertia?
One object pushing on another will always receive a push in return. True or false.
True
When mass increases, what happens to inertia?
increases?
This property of a moving object makes it hard to stop. (mass in motion)
momentum
This natural law states that for every action, there is an equal and opposite reaction.
Newton’s Third Law?
What force is acting on all objects on earth?
gravity
What causes a ball that has been kicked across the ground to stop?
Friction
Objects with more mass are ______ to set in motion.
harder
A car and a train are going the same speed. The car is easier to stop because of this.
less mass and less inertia
This occurs whenever an object is acted upon by an unbalanced force.
acceleration?
This is required to overcome an object’s inertia.
unbalanced force?
According to Newton’s Second Law, if the force increased but the mass remained the same, what happens to acceleration?
The objects acceleration increased.
A bowling ball and a feather will fall at the same ________ in a vacuum?
speed/acceleration
As an objects mass increases, what happens to its momentum?
Increases
If the force of gravity pulls down on objects at 9.8 m/s2, how fast do you think an object would move when falling in a vacuum chamber?
9.8 m/s2
If the outward push of air is greater than the inward push of the rubber on a balloon the balloon would deflate. True or false?
False- Balloon would inflate/pop