Vocabulary
This occurs when the only force acting upon an object is gravity.
What is free fall?
An object dropped on Earth is NOT in free fall, because it experiences ______________.
What is air resistance?
Newton's First Law is sometimes called this.
What is The Law of Inertia?
This is the mathematical formula for Newton's Second Law.
What is F = ma?
OR
What is a = F/m?
Newton's Third Law says that forces always act in __________________.
What are pairs?
When an object is traveling in two directions at once.
What is projectile motion?
This is the only force involved in free fall.
What is gravity?
An object with more _____________ has more inertia.
What is mass?
If the force applied to an object is doubled, then its acceleration will _________________.
What is double?
This is the number of objects that experience the pair of forces.
What is 2?
The top speed an object reaches while falling caused by air resistance canceling out gravity.
What is terminal velocity?
This is the net force on a falling object when it hits terminal velocity.
What is zero?
An object with higher inertia is harder to ___________, ___________________, or ___________________
What is start, stop, or turn?
If the same force is applied to two objects and one object has twice the mass, then the object with double the mass will have _____________ the acceleration.
What his half?
An object with higher velocity will have a higher ___________________________.
What is momentum?
The tendency of an object to resist a change in motion.
What is inertia?
Which of the following is an example of projectile motion?
A. Punting a football
B. Closing a door
C. A spinning fan
D. Blowing a bubble
A. Punting a football
Which object has the highest inertia?
A. An apple
B. A Saint Bernard
C. A football player
D. A wrecking ball
D. A wrecking ball
If you keep applying a force to an object, the object will have a constant _________________________.
What is acceleration?
My father's tractor trailer has a _______________________ momentum than my car as they both go down the highway at 70mph.
What is higher?
What is momentum?
What happens when an object hits terminal velocity?
A. it speeds up
B. it stops accelerating
C. it stops
D. it slows down
B. it stops accelerating
What is fly off in a straight line?
The sun is constantly applying a force on the Earth. How is it that the Earth has a constant acceleration if it is not speeding up?
The Earth is always changing direction, so it is always accelerating.
My father's 35 ton tractor trailer has ___________ momentum when it is parked at a truck stop.
What is no?