3 objects of various materials are dropped at the same height. What would cause all 3 hit the ground at the same time
What is NO air resistance.
100
Newton’s __________ law of motion explains the Conservation of momentum.
What is 3rd law of motion
100
__________can only take place in a vacuum chamber or space.
What is free fall?
100
Air resistance is ________________________ friction.
What is fluid friction?
100
Catapults create _______________________ motion.
What is projectile motion?
200
___________ and ________ effect the gravitational pull on objects.
What is mass and distance?
200
Newton’s _________________ law of motion applies to moving and nonmoving objects and objects that are accelerating.
What is 2nd law of motion?
200
Newton’s 2nd law of motion states that an object’s acceleration increases as its mass _____________________.
What is decreases?
200
An tennis ball and and a bowling are moving at the same velocity. Which has more momentum?__________________________________
What is bowling ball?
200
________________slows or stops the acceleration of falling objects.
What is air resistance?
300
The force of __________________________ is opposed by air resistance which increases when a sky diver opens a parachute to reach a safe terminal velocity.
What is gravity?
300
According to Newton’s ____________ law, a moving object that is not acted on by an unbalanced force will remain in motion.
What is 1st Law of motion?
300
The amount of air resistance acting on an object depends on the objects ____________ and ___________.
What is size and shape
300
Falling objects stop accelerating at _____________________
What is terminal velocity?
300
_______________________________ can occur only in a vacuum chamber or in space.
What is free fall?
400
When air resistance exactly matches the downward force of _______________________, a falling object stops accelerating and reach terminal velocity.
What is gravity?
400
Inertia is used when explaining Newton’s __________ law of motion
What is 1st law of motion?
400
Newton’s 2nd law of motion states that an object’s acceleration increases as the force acting on it ___________________________.
What is increases.
400
Which of the following does not describe the acceleration of an object?
a. decreases as the mass of the object increases
b. increases as the force of the object decreases
c. increases as the force of the object increases
d. is in the same direction as the force on the object.
What is b - increases as the force of the object decreases.
400
Because of _____________, when aiming at a target you should always aim higher than the bull’s eye.
What is projectile motion?
500
Which of the following would have the greatest air resistance? an acorn crumpled sheet of paper a flat sheet of paper
What is flat sheet of paper?
500
The force of gravity is opposed by _____________.
What is air resistance?
500
Order the following objects based on the amount of momentum each would have (least to greatest): fully-loaded truck small car empty truck midsize van
What is small car, midsize van, empty truck, loaded truck
500
An object in motion tends to stand in motion because it has _______________________.