Newton's Laws
What is the first name of the person that discovered Newton's Laws of Motion?
Isaac
What is a force?
a push or pull that one body exerts on another
Newton's First Law of Motion is known as the law of _______
Inertia
Mass x acceleration is equal to....
Force
What is Newton's Third Law?
For every action there is an equal and opposite reaction force
An object at rest will remain at rest and an object in motion will continue moving at a constant velocity unless __________
Acted on by an external force
forces that are equal and opposite
balanced
A notebook is on a table. An object at ________ will remain at ________.
Rest, Rest
An obejct with a mass of 60 kg is pushed with a force of 240 N. What is the object's acceleration?
4 m/s^2
Hand pushes on wall and __________________
wall pushes on hand
Which law explains: The acceleration of an object is directly proportional to the net force acting on it.
Newton's 2 law
When an unbalanced force acts on an object; the object _____________
accelerates
A ball is rolled across an empty park. What external force will eventually stop the ball.
Friction
An object in free fall is being pushed down by
gravity
True or False: Some action and reaction forces do not cancel out
True
If you throw a ball directly up, gravity will push it back down. This is an example of which law?
Newton's First Law
For an object with greater _____, greater force is required
True or False: objects at rest will always be put into motion, and objects in motion will always be put into rest.
False
To move an object with greater mass, greater _______ is required.
force
If an object moves, that means the forces acting on it are _____________.
Unbalanced
what force opposes the motion of objects that touch as they pass by each other
friction
The net force of zero is a
balanced force
A skydiver who jumps from a plane will fall through the air with gravity as the only force acting on them. This is called:
free fall
If the mass increases and force stays the same, the acceleration _________
decreases
If a hammer and a nail push on each other with equal forces, why does the nail move instead of the hammer?
The nail has less mass, so it accelerates more even though the forces are equal.