Describe Newton's Laws and their applications to motion.
Given F=ma, calculate the motion of an object
If a 5 kg object is acted upon by a force of 20 N,
what is its acceleration? If it starts from rest,
what will be its speed after 3 seconds?
What is the difference between mass and weight?
If and object has a mass of 2 kg, what is its weight
under normal Earth gravity?
If a crate weighs 120 pounds, what is its mass?
Describe static and kinetic friction and their applications
If the coefficient of static friction of a surface
is 0.5 and the coefficient of kinetic friction is 0.4,
then how much force will be required to set in
motion a 40 kg crate? How much force will be
required to keep it going at a constant velocity a
after starting?
If a large truck and a Volkswagen collide, which
is acted upon by the larger force?
If more than one force acts on an object, how do you
predict its motion from Newton's second law?
If a 10 kg object falls in the Earth's gravity but is acted
upon by a 40 N air resistance force, what will be its
acceleration?
What is meant by "terminal velocity" in free fall?
If air drag is proportional to the square of the velocity,
how do you calculate the terminal velocity?
What is Newton's law of gravitation?
How is gravity related to the other
fundamental forces?
What is the inverse square law? To what
besides gravity does it apply?
Does the larger Earth exert a larger
gravitational force on the smaller
Moon than it exerts on the Earth?
What causes the tides? Why are there two per day
instead of just one?
How does the force of gravity change with distance
outside the Earth? inside the Earth?
If an object weighs 600 N at the Earth's surface, what
will it weigh twice as far out from the Earth's center?
...three times as far out?
How would you calculate your weight in orbit?
