The tendency of an object to resist being moved, or if the object is moving, to resist a change in sipped or direction until an outside force acts on the object.
What is inertia
100
What year did Sir Isaac Newton explain the relationship between force and motion of an object with his three laws of motion.
What is 1686
100
what slows the acceleration of a falling object so it reaches its terminal velocity?
What is air resistance
100
what acts as a centripetal force to keep objects in orbit?
What is gravity
200
What makes a car harder to stop when compared to a bike?
What is inertia
200
What is the equation that expresses the relationship of acceleration (a), mass (m), and force (F).
What is a=F/m or F= m x a
200
Whenever one object exerts a force on a second object, the second object exerts an equal and opposite force on the first. (which law)
What is Newton's third law of motion
200
gravity affects which component of projectile motion?
What is vertical motion
200
Objects fall to the ground at different rates because the acceleration due to gravity is the same for all objects. True or False?
What is False
300
What unbalanced force cause Newton's first law of motion to be difficult to observe.
What is friction
300
Action forces and reaction forces do not act on the same object for what reason.
What is because if they did, the net force would be 0 N and nothing would move
300
Who was the philosopher that thought the rate at which an object falls depended on the objects mass?
What is Aristotle
300
Give 3 examples of projectile motion.
What is:
-a frog leaping
-water sprayed by a sprinkler
-a swimmer diving into water
-balls being juggled
-an arrow shot by an archer
ANY 3 OF THESE
300
when is an object in free fall?
What is when gravity is the only force acting on it.
400
What two things acceleration depend on?
What is force and mass
400
The acceleration of an object depends on the mass do the object and the amount of force applied. (Which law)
What is Newton's second law of motion
400
A space shuttle going into space is an example of which one of Newton's laws?
What is Newton's third law of motion
400
What is the formula to calculate the change in velocity
What is ∆v=g*t
400
Why do objects in orbit appear to be weightless?
What is they are in free fall?
500
Which one of Newton's laws describes the motion of an object that has a net force of 0 N acting on it.
What is Newtons first Law of Motion
500
An object at rest remains at rest, and an object in motion remains in motion at constant speed and in a straight line unless acted on by an unbalanced force. (which law)
What is Newton's first law of Motion
500
A stone at rest is dropped from a cliff, and the stone hits the ground after a time of 3s. What is the stone's velocity when it hits the ground? YOU HAVE 25 SECONDS!
(∆v=g*t)
What is 29.4m/s
500
The force that keeps objects in circular motion
What is centripetal force
500
Why is the downward acceleration of a thrown object and a falling object the same?
What is gravity pulls all falling objects down at the acceleration. Of 9.8m/s^2