In outer space since there is no air resistance and objects are only under the influence of gravity. This is called _______.
What is free fall?
100
Friction occurs when ___________.
What is two surfaces rub together?
100
In tug of war, the stronger team always wins because the forces are __________________.
What is unbalanced?
100
Newton created his laws by watching objects ____________________.
What is move, fall, accelerate, create force etc.?
200
This is the major difference between speed & velocity.
What is direction?
200
Gravity on Earth causes all objects to fall at ________ m/s/s.
What is 9.8 or 10?
200
An snowboarder uses ________________ friction to get from the top to the bottom of a mountain.
What is sliding?
200
When gravity and air resistance allow a falling object to reach terminal velocity, then these two forces are _______________________.
What is balanced?
200
As you push the buttons on a keyboard you are using which law of motion?
What is the Third Law?
300
Acceleration is the change in ____________.
What is velocity?
300
The force of gravity is affected by ___________ and _________.
What is mass of the objects and distance between them?
300
I cannot move my cabinet because it has too much ________________ friction.
What is static?
300
Air resistance will ____________ as objects fall faster.
What is increase?
300
As you slide down a hill in the snow, gravity is the force that keeps you moving. You have _______ unless you are acted on by an outside force like a tree!
What is inertia?
400
These are the three types of acceleration.
What is speeding up, slowing down, or changing direction?
400
This is the largest planet; therefore, it has the greatest gravitational force!
What is Jupiter?
400
Anything that is round can use this type of friction.
What is rolling?
400
In a vacuum a feather and a stone will fall at the same rate. This is because there is no ____________________.
What is air resistance?
400
When Babe Ruth hit a homerun, what were the action and reaction forces at work?
What is the bat is the action force and the ball changing direction is the reaction?
500
On a graph, this is how you tell the difference between positive and negative acceleration.
What is an upward slope for positive acceleration and a downward slope for negative acceleration.
500
Which planet do you think is affected by the sun's gravitational pull the most? Hint: think distance.
What is mercury because it is the closest to the sun?
500
Without friction ____________ would be extremely difficult for everyone to do.
What is walking?
500
In the 1600s a scientist by the name of ____________ studied falling objects by rolling objects down an inclined plane.
Who is Gallileo?
500
Explain all three of Newton's Laws.
What is...
The law of inertia says that any object in motion or at rest will stay in that state until acted on by an unbalanced force.
The 2nd law uses f=m x a to describe the relationship between the amount of force needed to accelerate a certain mass.
The third law explains that all forces act in equal and opposite pairs.