Newton's 1st Law
What is Newton's 1st Law?
An object that remains at rest
What is Newton's 2nd Law?
The acceleration of the body is directly proportional to the net force
For every action there is an equal and opposite direction
What is a force?
An action that changes or maintains the motion of body or object
An invisible force that pulls objects toward each other
How does Newton's first law apply to rockets?
Rockets stay still until a force is applied to move them.
What does Newtons second law give?
Force is equal to the rate of change of momentum.
Is pushing a ball is Newton's third law?
True or False
True
Is it true that we use force everyday?
Force and motion are fundamental to our daily lives
How do we used gravity in everyday life?
A raised weight
How does Newton's 1st law relate to flight?
The plane will keep flying at the same speed unless something makes it accelerate
What is the formula for Newton's 2nd Law
F=ma
Where does Newton's 3rd law fail?
When an object is falling due to gravity.
Is friction a force?
Force that resists the sliding or rolling of one solid object over another.
What triggers gravity?
Exchanging particles called gravitons,
What is the formula for Newton's 1st law of motion
p=mv
What is the second law of motion?
The time rate of change of the momentum of a body is equal in both magnitude and direction to the force imposed on it.
Why is Newton's third law important?
U for figuring out which forces are external to a system
What does force depend on?
The mass of each object and the distance between the centers of the two objects.
Who discovered gravity?
Isaac Newton
How does Newton's first law apply to tug of war?
An initial force needs to be applied to overcome inertia.
What does newton's 2nd law tell us?
The acceleration of an object is directly related to the net force and inversely related to its mass.
How does Newton's 3rd law create lift?
Wings are forced upwards because they are tilted, pushing air downwards so the wings get pushed upwards
What produces a force?
Gravity, magnetism, or anything that might cause a mass to accelerate
How does gravity collapse?
Contraction of an astronomical object due to the influence of its own gravity, which tends to draw matter inward toward the center of gravity.