Use the Force Luke
A push or pull that acts on an object.
What is 'Force'?
Pg 226, BTD
Per Newton's First Law, an object in motion will stay in this.
What is 'In motion'?
Pg 240, BTD
When an object is acted on by one or more unbalanced forces, the object does this.
What is 'Accelerate'?
Pg 245, BTD
According to Newton's third law, every action an equal and opposite this.
What is 'Reaction'?
Pg 252, Newton's Third Law section.
At the atomic level, all surfaces are this and is responsible for why friction occurs.
What is 'Not smooth'?
Pg 229, figure 7.7
In this game, two teams pull against each other to gain an advantage in force and pull a point on a line across a goal.
What is 'Tug of War'?
Pg 227, Combining Forces, 2nd paragraph.
In experiment 7.2, the marble that was accerlerated around the pie tin went in this direction.
What is 'Straight (It maintained it's velocity)'?
Pg 243, Last paragraph
When an object is accelerating, this force is always working against it.
What is 'Friction'?
Pg 246, 4th paragraph
In lab 7.3, the action and reaction being tested was this kind.
What is 'Chemical reaction'?
Pg 255, first paragraph
For friction to occur, this ahs to be true of two objects.
What is 'Be in contact'?
Pg 228, BTD
There is a change in motion when two objects have a change in this.
What is 'Force'?
Pg 227, Combining Forces, 3rd paragraph.
This human organ is an example of Newton's First Law working to help people maintain their balance and sense of up and down.
What is 'Semicircular Canals, or The inner Ear'?
Pg 245, think about this section.
With mass and weight being different, weight equals the affect of gravity on an object while mass equals this.
What is 'The amount of an object (how many molecules of it)'?
Pg 251, Weight and Mass section.
When a rocket is burning fuel, this is the reaction acting on the rocket that is occurring and is an example of Newton's Third Law.
What is 'Gases pushing (the rocket)'?
Pg 256, first paragraph
This type of friction opposes the start, or initiation, of objects to move.
What is 'Static friction'?
Pg 230, BTD & figure 7.8
Acceleration and Velocity are both considered this kind of force. (Remember the measurement of quantities in change)
What is 'A vector quantity'?
Pg 227, Combining forces, first paragraph.
This is the SI (Standard Scientific Unit) for force.
What is 'A Newton'?
Pg 226, Force section, 3rd paragraph.
Because force is a vector, an object's acceleration will always be in this direction.
What is 'The same direction (as the force)'?
Pg 246, 2nd paragraph.
Critical to Newton's Third Law, the equal and opposite reactions do not occur on this.
What is 'The same object'?
Pg 253, last paragraph
If an object is in free fall through Earth's atmosphere, it will encounter this kind of liquid friction.
What is 'Air Resistance'?
Pg 231, 3rd paragraph.
When contraposing forces are in balance, they are considered this.
What is 'Equal in Magnitude'?
Pg 227, figure 7.4
Newton's Frist Law is also referred to this due to an object's resistance to change in velocity.
Pg 240, Newton's First Law of Motion, 2nd paragraph
The amount an object accelerates is dependent on the mass of the object and this.
What is 'Magnitude of Force'?
Pg 245, last paragraph.
Newton is credited for this widely used law that allows physicists to calculate the gravitational state where every object in the universe is attracted to each other.
What is 'The Universal Law of Gravitation'?
Pg 259, Gravitational Forces, 3rd paragraph.
Of all the types of friction, other than liquid, this is considered as having the least amount of friction.
What is 'Rolling friction'?
Pg 231, 2nd paragraph